PLK4
gene geneOn this page
Also known as Sak
Summary
PLK4 (polo like kinase 4, HGNC:11397) is a protein-coding gene on chromosome 4q28.1, encoding Serine/threonine-protein kinase PLK4 (O00444). Serine/threonine-protein kinase that plays a central role in centriole duplication. It is a common-essential gene (DepMap: required in 95.4% of cancer cell lines).
This gene encodes a member of the polo family of serine/threonine protein kinases. The protein localizes to centrioles, complex microtubule-based structures found in centrosomes, and regulates centriole duplication during the cell cycle. Three alternatively spliced transcript variants that encode different protein isoforms have been found for this gene.
Source: NCBI Gene 10733 — RefSeq curated summary.
At a glance
- Gene–disease (curated): microcephaly and chorioretinopathy 2 (Definitive, GenCC) — +2 more curated relationships
- Clinical variants (ClinVar): 722 total — 21 pathogenic, 13 likely-pathogenic (top 4% of genes corpus-wide)
- GTEx eGene: eQTL in 5 tissues, sQTL in 0 (q < 0.05)
- Phenotypes (HPO): 66
- Drug target: yes — 3 curated mechanism-of-action drugs; 65 molecules with ChEMBL bioactivity (top 1% of genes corpus-wide)
- Cancer dependency (DepMap): dependent in 95.4% of screened cell lines (common-essential)
- Constraint (gnomAD): pLI 0.18 (intermediate), LOEUF 0.62 (unconstrained)
- MANE Select transcript:
NM_014264 - Interaction hub: 2,169 STRING partners (top 6% of genes corpus-wide)
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:11397 |
| Approved symbol | PLK4 |
| Name | polo like kinase 4 |
| Location | 4q28.1 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | Sak |
| Ensembl gene | ENSG00000142731 |
| Ensembl biotype | protein_coding |
| OMIM | 605031 |
| Entrez | 10733 |
Gene structure
Transcript identifiers
Ensembl transcripts: 17 — 10 protein_coding, 4 retained_intron, 2 nonsense_mediated_decay, 1 protein_coding_CDS_not_defined
MANE Select: ENST00000270861
Transcript support level (Ensembl TSL; 1 = fully mRNA-supported): TSL 1: 1, TSL 2: 5, TSL 3: 2, TSL 4: 1, TSL 5: 2
ENST00000270861, ENST00000503914, ENST00000507249, ENST00000507454, ENST00000508113, ENST00000510192, ENST00000510605, ENST00000511942, ENST00000513090, ENST00000514379, ENST00000515069, ENST00000852980, ENST00001083692, ENST00001083693, ENST00001115916, ENST00001129379, ENST00001134494
RefSeq mRNA: 14 — MANE Select: NM_014264
NM_001190799, NM_001190801, NM_001441357, NM_001441358, NM_001441359, NM_001441360, NM_001441361, NM_001441362, NM_001441366, NM_001441367, NM_001441368, NM_001441369, NM_001441371, NM_014264
CCDS: CCDS3735, CCDS54803, CCDS54804
Canonical transcript exons
ENST00000270861 — 16 exons
| Exon | Start | End |
|---|---|---|
| ENSE00000956077 | 127883262 | 127883357 |
| ENSE00000956078 | 127883439 | 127883553 |
| ENSE00000956079 | 127885708 | 127886728 |
| ENSE00000956080 | 127887396 | 127887496 |
| ENSE00000956082 | 127891092 | 127891196 |
| ENSE00000956084 | 127892365 | 127892514 |
| ENSE00000956085 | 127893285 | 127893418 |
| ENSE00001280184 | 127898439 | 127899224 |
| ENSE00002068636 | 127880893 | 127881164 |
| ENSE00003483918 | 127893734 | 127893881 |
| ENSE00003518610 | 127893513 | 127893604 |
| ENSE00003599372 | 127891579 | 127891681 |
| ENSE00003608012 | 127896801 | 127896907 |
| ENSE00003630062 | 127894953 | 127895093 |
| ENSE00003656252 | 127881831 | 127881926 |
| ENSE00003668667 | 127889866 | 127890236 |
Expression profiles
Bgee: expression breadth ubiquitous, 201 present calls, max score 96.71.
FANTOM5 (CAGE): breadth ubiquitous, TPM avg 6.7695 / max 133.3829, expressed in 1309 samples.
Highest expression (Bgee): ventricular zone, ganglionic eminence, primordial germ cell in gonad, sperm, male germ line stem cell (sensu Vertebrata) in testis.
Genetic regulation across tissues (GTEx eQTL / sQTL)
PLK4 is an eGene in GTEx v10 — its expression is genetically regulated (eQTL) in 5 tissues and its splicing (sQTL) in 0 (q < 0.05). Strongest associations first; slope = normalized effect of the lead variant’s alternative allele.
5 significant tissue × QTL associations:
| Tissue | QTL | q-value | Slope | Lead variant |
|---|---|---|---|---|
| Skin Sun Exposed Lower leg | eqtl | 2.1e-02 | +0.30 | 4:128212726:A:G |
| Cells Cultured fibroblasts | eqtl | 3.2e-02 | -0.24 | 4:128319446:T:C |
| Adipose Subcutaneous | eqtl | 3.3e-02 | -0.45 | 4:127346417:G:A |
| Stomach | eqtl | 3.7e-02 | -0.68 | 4:127020984:G:A |
| Esophagus Mucosa | eqtl | 3.9e-02 | +0.17 | 4:127153054:A:C |
FANTOM5 promoters
2 alternative TSS:
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 49607 | 6.6563 | 1304 |
| 49608 | 0.1131 | 52 |
Top tissues by expression
showing 100 of 288 tissues by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| ventricular zone | UBERON:0003053 | 96.71 | gold quality |
| ganglionic eminence | UBERON:0004023 | 91.66 | gold quality |
| primordial germ cell in gonad | CL:0000670 ∩ UBERON:0000991 | 89.42 | gold quality |
| sperm | CL:0000019 | 89.32 | gold quality |
| male germ line stem cell (sensu Vertebrata) in testis | CL:0000089 ∩ UBERON:0000473 | 88.79 | gold quality |
| embryo | UBERON:0000922 | 87.51 | gold quality |
| male germ cell | CL:0000015 | 87.05 | gold quality |
| left testis | UBERON:0004533 | 86.99 | gold quality |
| testis | UBERON:0000473 | 86.83 | gold quality |
| right testis | UBERON:0004534 | 86.45 | gold quality |
| bone marrow | UBERON:0002371 | 84.39 | gold quality |
| bone marrow cell | CL:0002092 | 82.73 | gold quality |
| rectum | UBERON:0001052 | 82.34 | gold quality |
| endometrium epithelium | UBERON:0004811 | 80.11 | gold quality |
| vermiform appendix | UBERON:0001154 | 78.29 | gold quality |
| mucosa of transverse colon | UBERON:0004991 | 78.14 | gold quality |
| stromal cell of endometrium | CL:0002255 | 77.98 | gold quality |
| lower esophagus mucosa | UBERON:0035834 | 77.35 | gold quality |
| esophagus mucosa | UBERON:0002469 | 77.17 | gold quality |
| adrenal tissue | UBERON:0018303 | 76.76 | gold quality |
| cortical plate | UBERON:0005343 | 75.89 | gold quality |
| trabecular bone tissue | UBERON:0002483 | 75.79 | gold quality |
| secondary oocyte | CL:0000655 | 75.59 | gold quality |
| lymph node | UBERON:0000029 | 75.44 | gold quality |
| skin of abdomen | UBERON:0001416 | 72.91 | gold quality |
| endometrium | UBERON:0001295 | 72.65 | gold quality |
| pancreatic ductal cell | CL:0002079 | 72.08 | silver quality |
| skin of leg | UBERON:0001511 | 72.01 | gold quality |
| caecum | UBERON:0001153 | 71.75 | gold quality |
| diaphragm | UBERON:0001103 | 71.45 | gold quality |
| smooth muscle tissue | UBERON:0001135 | 70.85 | gold quality |
| transverse colon | UBERON:0001157 | 70.58 | gold quality |
| zone of skin | UBERON:0000014 | 70.29 | gold quality |
| cartilage tissue | UBERON:0002418 | 70.29 | gold quality |
| epithelium of esophagus | UBERON:0001976 | 69.98 | silver quality |
| esophagus squamous epithelium | UBERON:0006920 | 69.91 | silver quality |
| vagina | UBERON:0000996 | 69.54 | gold quality |
| small intestine Peyer’s patch | UBERON:0003454 | 69.47 | gold quality |
| olfactory segment of nasal mucosa | UBERON:0005386 | 69.23 | gold quality |
| esophagus | UBERON:0001043 | 68.83 | gold quality |
| monocyte | CL:0000576 | 68.60 | gold quality |
| small intestine | UBERON:0002108 | 68.57 | gold quality |
| amniotic fluid | UBERON:0000173 | 68.50 | gold quality |
| leukocyte | CL:0000738 | 68.47 | gold quality |
| thymus | UBERON:0002370 | 68.42 | gold quality |
| mononuclear cell | CL:0000842 | 68.29 | gold quality |
| colonic epithelium | UBERON:0000397 | 68.26 | silver quality |
| spleen | UBERON:0002106 | 68.06 | gold quality |
| adult organism | UBERON:0007023 | 68.05 | gold quality |
| oral cavity | UBERON:0000167 | 67.94 | silver quality |
| granulocyte | CL:0000094 | 67.71 | gold quality |
| duodenum | UBERON:0002114 | 67.64 | gold quality |
| intestine | UBERON:0000160 | 67.61 | gold quality |
| right adrenal gland | UBERON:0001233 | 67.51 | gold quality |
| right adrenal gland cortex | UBERON:0035827 | 67.34 | gold quality |
| gall bladder | UBERON:0002110 | 67.16 | gold quality |
| large intestine | UBERON:0000059 | 66.83 | gold quality |
| colonic mucosa | UBERON:0000317 | 66.65 | gold quality |
| colon | UBERON:0001155 | 66.65 | gold quality |
| mucosa of sigmoid colon | UBERON:0004993 | 66.63 | gold quality |
| epithelium of nasopharynx | UBERON:0001951 | 66.48 | silver quality |
| tonsil | UBERON:0002372 | 66.46 | gold quality |
| calcaneal tendon | UBERON:0003701 | 66.37 | gold quality |
| islet of Langerhans | UBERON:0000006 | 66.25 | gold quality |
| oviduct epithelium | UBERON:0004804 | 66.01 | silver quality |
| placenta | UBERON:0001987 | 65.94 | gold quality |
| female reproductive system | UBERON:0000474 | 65.84 | gold quality |
| bronchial epithelial cell | CL:0002328 | 65.74 | gold quality |
| ovary | UBERON:0000992 | 65.66 | gold quality |
| left adrenal gland | UBERON:0001234 | 65.50 | gold quality |
| prefrontal cortex | UBERON:0000451 | 65.39 | gold quality |
| left adrenal gland cortex | UBERON:0035825 | 65.39 | gold quality |
| metanephros cortex | UBERON:0010533 | 65.36 | gold quality |
| ileal mucosa | UBERON:0000331 | 65.25 | silver quality |
| minor salivary gland | UBERON:0001830 | 65.08 | gold quality |
| uterus | UBERON:0000995 | 64.90 | gold quality |
| adrenal gland | UBERON:0002369 | 64.90 | gold quality |
| squamous epithelium | UBERON:0006914 | 64.64 | silver quality |
| upper leg skin | UBERON:0004262 | 64.52 | gold quality |
| body of stomach | UBERON:0001161 | 64.41 | gold quality |
| buccal mucosa cell | CL:0002336 | 64.40 | silver quality |
| stomach | UBERON:0000945 | 64.20 | gold quality |
| upper lobe of left lung | UBERON:0008952 | 64.14 | gold quality |
| mouth mucosa | UBERON:0003729 | 64.12 | gold quality |
| adrenal cortex | UBERON:0001235 | 64.02 | gold quality |
| left ovary | UBERON:0002119 | 64.01 | gold quality |
| right ovary | UBERON:0002118 | 63.99 | gold quality |
| upper lobe of lung | UBERON:0008948 | 63.82 | gold quality |
| jejunal mucosa | UBERON:0000399 | 63.53 | silver quality |
| subcutaneous adipose tissue | UBERON:0002190 | 63.51 | gold quality |
| fallopian tube | UBERON:0003889 | 63.50 | gold quality |
| descending thoracic aorta | UBERON:0002345 | 63.49 | gold quality |
| epithelium of bronchus | UBERON:0002031 | 63.39 | silver quality |
| body of uterus | UBERON:0009853 | 63.27 | gold quality |
| ectocervix | UBERON:0012249 | 62.96 | gold quality |
| tibial nerve | UBERON:0001323 | 62.95 | gold quality |
| bronchus | UBERON:0002185 | 62.57 | silver quality |
| omental fat pad | UBERON:0010414 | 62.56 | gold quality |
| peritoneum | UBERON:0002358 | 62.50 | gold quality |
| pancreas | UBERON:0001264 | 62.31 | gold quality |
Single-cell (SCXA)
Detected in 1 experiment(s), a significant marker in 1.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-ANND-3 | yes | 5.19 |
HPA expression
RNA tissue specificity: Group enriched
showing 60 of 77 HPA tissues / cells by nTPM:
| Tissue / cell | Axis | nTPM | Protein (IHC) |
|---|---|---|---|
| Bone marrow | tissue | 21.3 | medium |
| Testis | tissue | 21.2 | high |
| Thymus | tissue | 13.4 | |
| Lymph node | tissue | 6.9 | medium |
| Tonsil | tissue | 6.9 | medium |
| Appendix | tissue | 4.6 | medium |
| Rectum | tissue | 4.0 | medium |
| Colon | tissue | 3.3 | medium |
| Placenta | tissue | 3.3 | medium |
| Frontal cortex | tissue | 3.1 | |
| Caudate putamen | tissue | 3.1 | |
| Esophagus | tissue | 2.8 | low |
| Small intestine | tissue | 2.7 | medium |
| Duodenum | tissue | 2.7 | medium |
| Cerebral cortex | tissue | 2.5 | low |
| Putamen | tissue | 2.5 | |
| Occipital cortex | tissue | 2.5 | |
| Somatosensory cortex | tissue | 2.4 | |
| Basal ganglia | tissue | 2.3 | not detected |
| Amygdala | tissue | 2.3 | |
| Skin 1 | tissue | 2.2 | low |
| Motor cortex | tissue | 2.2 | |
| Hippocampal formation | tissue | 2.2 | |
| Ventral forebrain | tissue | 2.2 | |
| Retrosplenial and cingulate cortex | tissue | 2.2 | |
| Retrosplenial cortex | tissue | 2.2 | |
| Temporal cortex | tissue | 2.2 | |
| Insular cortex | tissue | 2.2 | |
| Prefrontal cortex | tissue | 2.1 | |
| Entorhinal cortex | tissue | 2.1 | |
| Septum | tissue | 2.1 | |
| Hypothalamus | tissue | 2.0 | |
| Olfactory bulb | tissue | 2.0 | |
| Breast | tissue | 1.9 | not detected |
| Stomach 1 | tissue | 1.9 | medium |
| Retina | tissue | 1.9 | |
| Periaqueductal gray | tissue | 1.9 | |
| Midbrain | tissue | 1.8 | |
| Thalamus | tissue | 1.8 | |
| Cerebellum | tissue | 1.8 | not detected |
| Pons | tissue | 1.7 | |
| Smooth muscle | tissue | 1.7 | not detected |
| Corpus callosum | tissue | 1.7 | |
| Superior colliculi | tissue | 1.5 | |
| Substantia nigra | tissue | 1.5 | |
| Spleen | tissue | 1.5 | medium |
| Ovary | tissue | 1.4 | medium |
| Endometrium 1 | tissue | 1.4 | medium |
| Vagina | tissue | 1.3 | medium |
| Urinary bladder | tissue | 1.3 | not detected |
| Nucleus accumbens | tissue | 1.3 | |
| Medulla oblongata | tissue | 1.3 | |
| Spinal cord | tissue | 1.3 | |
| Fallopian tube | tissue | 1.3 | medium |
| Postcentral gyrus | tissue | 1.1 | |
| Gallbladder | tissue | 1.0 | medium |
| Locus coeruleus | tissue | 1.0 | |
| Adrenal gland | tissue | 1.0 | not detected |
| Adipose tissue | tissue | 0.9 | not detected |
| Lung | tissue | 0.9 | medium |
Brain sub-regions (HPA Brain Atlas): detected in 191; highest nTPM — Dorsal hippocampus (2.2), Subiculum (2.1), Ventral hippocampus (1.8), White matter (1.7), Anterior thalamic nucleus, ventral (1.5).
Regulation
Is transcription factor: no
Upstream regulators (CollecTRI, top): CREB1, E2F1, E2F2, E2F3, E2F4, KCNIP3, NFKB, SP1, TP53
miRNA regulators (miRDB)
Targeting PLK4 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific).
showing 30 of 53 miRNAs:
| miRNA | Max score | Avg score | miRNA target_count |
|---|---|---|---|
| HSA-MIR-3163 | 100.00 | 77.23 | 8605 |
| HSA-MIR-3646 | 100.00 | 73.56 | 5283 |
| HSA-MIR-548AW | 99.99 | 72.57 | 3559 |
| HSA-MIR-3662 | 99.99 | 73.82 | 5684 |
| HSA-MIR-4282 | 99.99 | 75.36 | 6408 |
| HSA-MIR-4789-3P | 99.99 | 70.75 | 2484 |
| HSA-MIR-548C-3P | 99.99 | 74.01 | 7587 |
| HSA-MIR-4803 | 99.98 | 71.99 | 3117 |
| HSA-MIR-12136 | 99.98 | 72.81 | 5713 |
| HSA-MIR-520D-5P | 99.98 | 73.34 | 4883 |
| HSA-MIR-524-5P | 99.98 | 73.43 | 4882 |
| HSA-MIR-3065-5P | 99.97 | 71.56 | 3281 |
| HSA-MIR-302C-5P | 99.97 | 72.56 | 3642 |
| HSA-MIR-1468-3P | 99.96 | 72.74 | 3797 |
| HSA-MIR-6835-3P | 99.93 | 70.49 | 2904 |
| HSA-MIR-450B-5P | 99.92 | 71.48 | 3175 |
| HSA-MIR-7-1-3P | 99.91 | 71.53 | 4384 |
| HSA-MIR-7-2-3P | 99.91 | 71.40 | 4394 |
| HSA-MIR-548E-5P | 99.89 | 72.73 | 4486 |
| HSA-MIR-6885-3P | 99.75 | 70.36 | 3187 |
| HSA-MIR-4699-3P | 99.71 | 70.15 | 3142 |
| HSA-MIR-518A-5P | 99.70 | 69.01 | 2209 |
| HSA-MIR-527 | 99.70 | 69.01 | 2209 |
| HSA-MIR-5580-3P | 99.70 | 69.41 | 2052 |
| HSA-MIR-4530 | 99.69 | 66.47 | 1509 |
| HSA-MIR-4729 | 99.69 | 72.18 | 4233 |
| HSA-MIR-466 | 99.67 | 70.85 | 2863 |
| HSA-MIR-7156-5P | 99.64 | 68.81 | 1369 |
| HSA-MIR-5700 | 99.64 | 69.88 | 2280 |
| HSA-MIR-3942-3P | 99.57 | 69.03 | 2854 |
Functional genomics
gnomAD constraint: pLI 0.18, LOEUF 0.619, missense Z 1.09 — population loss-of-function intolerance (pLI ≥ 0.9 = LoF-intolerant; lower LOEUF = more constrained). gnomAD
Regional missense constraint (gnomAD)
ENST00000270861 splits into 4 regions with different missense tolerance; 0 are missense-constrained. Missense variants in a constrained region (low observed/expected) are more likely to be pathogenic. gnomAD
| Region (GRCh38) | Missense obs / exp | o/e | Constrained |
|---|---|---|---|
| 4:127,881,135–127,886,037 | 199 / 270.1 | 0.74 | no |
| 4:127,886,038–127,893,526 | 680 / 660.3 | 1.03 | no |
| 4:127,893,527–127,898,489 | 167 / 200.7 | 0.83 | no |
| 4:127,898,490–127,898,538 | 8 / 19.9 | 0.40 | no |
| DepMap (CRISPR cell-line fitness): dependent in 95.4% of screened cell lines, common-essential. |
Most-dependent cell lines (DepMap gene-effect, lower = stronger; ≤ −0.5 shown): HT-29 (-2.626), TC-71 (-2.439), SK-N-FI (-2.342), MHH-ES-1 (-2.32), SU-DHL-10 (-2.123), NCI-N87 (-1.928), KARPAS-299 (-1.911), TALL-1 (-1.827), RERF-LC-Sq1 (-1.82), OPM-2 (-1.815), OCI-LY-19 (-1.814), LP-1 (-1.795), MCF-7 (-1.787), NIH:OVCAR-3 (-1.76), HCC38 (-1.68).
Literature-anchored findings (GeneRIF, showing 40)
- SAK repression by p53 is likely mediated through the recruitment of HDAC repressors, and SAK repression contributes to p53-induced apoptosis (PMID:15967108)
- we identify Plk4 as a key regulator of centriole duplication.These findings provide an attractive explanation for the crucial function of Plk4 in cell proliferation and have implications for the role of Polo kinases in tumorigenesis. (PMID:16244668)
- SAK/PLK4 is required for centriole duplication and flagella development in Drosophila and human cells. (PMID:16326102)
- Overexpression of Polo-like kinase 4 (Plk4) in human cells induces centrosome amplification through the simultaneous generation of multiple procentrioles adjoining each parental centriole. (PMID:17681131)
- Human Plk4 phosphorylates Cdc25C. (PMID:18239451)
- Plk2 mediated centriole duplication is dependent on Plk4 function (PMID:19001868)
- HCT116 cells fail to organize the ninefold symmetry of centrioles due to insufficient Plk4. (PMID:19454482)
- CUL1 may function as a tumor suppressor by regulating PLK4 protein levels and thereby restraining excessive daughter centriole formation at maternal centrioles. (PMID:19679553)
- Data suggest that polo-like kinase 4 activity is restricted to the centrosome to prevent aberrant centriole assembly and sustained kinase activity is required for centriole duplication. (PMID:20032307)
- Plk4 is required for cytokinesis and maintenance of chromosomal stability (PMID:20348415)
- Data suggest that active Plk4 promotes its own degradation by catalyzing betaTrCP binding through trans-autophosphorylation (phosphorylation by the other kinase in the dimer) within homodimers. (PMID:20516151)
- Results suggest that Cep152 recruits Plk4 and CPAP to the centrosome to ensure a faithful centrosome duplication process. (PMID:21059844)
- Data show that Cep152 can be phosphorylated by Plk4 in vitro, suggesting that Cep152 acts with Plk4 to initiate centriole formation. (PMID:21059850)
- CDK11(p58), which accumulates only in the vicinity of mitotic centrosomes, directly interacts with the centriole-associated protein kinase Plk4 that regulates centriole number in cells. (PMID:21297952)
- These results highlight the critical role of PLK4 transcriptional deregulation in centriole multiplication in HPV-16 E7-expressing cells. (PMID:21609466)
- The activity of SCF-FBXW5 is negatively regulated by Polo-like kinase 4 (PLK4), which phosphorylates FBXW5 at Ser 151 to suppress its ability to ubiquitylate HsSAS-6. (PMID:21725316)
- STIL cooperates with SAS-6 and PLK4 in the control of centriole number and represents a key centriole duplication factor in human cells. (PMID:22349698)
- Plk4 is a centriole-localized kinase that does not directly regulate cytokinesis. (PMID:22456511)
- Study demonstrated that PLK4 was remarkably downregulated in HCC and could be served as a potential prognostic marker for patients with this deadly disease. (PMID:22829937)
- CAND1 promotes PLK4-mediated centriole overduplication and is frequently disrupted in prostate cancer. (PMID:23019411)
- Preventing Plk4 autoregulation causes centrosome amplification, stabilization of p53, and loss of cell proliferation (PMID:23249732)
- cooperation between Cep192 and Cep152 is crucial for centriole recruitment of Plk4 and centriole duplication during the cell cycle. (PMID:23641073)
- If both p53 and the SAPKK MKK4 are simultaneously inactivated, persistent polo-like kinase 4 activity combined with the lack of SAPK-mediated inhibition of centrosome duplication conspire to induce supernumerary centrosomes under stress. (PMID:23653187)
- Studies indicate that autophosphorylation of Nek7 and Plk4 occurred through an intermolecular mechanism, the kinases Aurora-A and Chk2 followed an intramolecular mechanism. (PMID:23821772)
- PLK4 is a new NFkappaB target gene, providing a direct link between NFkappaB activity and centrosome duplication, with implications for the role of these transcription factors in tumorigenesis. (PMID:23974100)
- Plk4 dynamically localizes to distinct subcentrosomal regions by interacting with two hierarchically regulated scaffolds, Cep192 and Cep152. (PMID:24277814)
- it appears that Nek2 and Plk4 might synergize to promote breast tumorigenesis and may also be involved in tamoxifen and trastuzumab resistance (PMID:24389189)
- p53-Dependent and cell specific epigenetic regulation of the polo-like kinases under oxidative stress. (PMID:24498222)
- HPVs16 and 18 commonly are present in normal oral mucosa and emphasize the importance of distinguishing clinical (PMID:24588599)
- Results demonstrated that Plk4 is under the direct control of the E2F activators in breast cancer cells. (PMID:24797070)
- Studies indicate that overexpression of polo-like kinase 4 (PLK4) is found in several cancer and suggest the PLK4 inhibitors as anticancer therapeutics. (PMID:24867403)
- PLK4 overexpression induces centrosome amplification and chromosome instability and causes the suppression of primary cilia formation. (PMID:24981932)
- Plk4 is intricately regulated in time and space through ordered interactions with two distinct scaffolds, Cep192 and Cep152, and a failure in this process may lead to human cancer. (PMID:24997597)
- Breast cancer cell viability is dependent on PLK4 expression. (PMID:25043604)
- An unexpected activity of Plk4 that promotes cell migration and may underlie an association between increased Plk4 expression, cancer progression and death from metastasis in solid tumor patients. (PMID:25174401)
- Mutation in PLK4, encoding a master regulator of centriole formation, defines a novel locus for primordial dwarfism. (PMID:25320347)
- Negative feedback by centriolar STIL regulates bimodal centriolar distribution of Plk4 and seemingly restricts occurrence of procentriole formation to one site on each parental centriole. (PMID:25342035)
- different levels of impaired PLK4 activity result in growth and cilia phenotypes, providing a mechanism by which microcephaly disorders can occur with or without ciliopathic features (PMID:25344692)
- Decreased PLK4 protein expression due to promoter hypermethylation was negatively correlated with JAK2 overexpression, a common occurrence in hematological malignancies. (PMID:25347426)
- PLK4 functions downstream of ROCK2 to drive centrosome amplification in arrested cells. (PMID:25590559)
Cross-species orthologs
4 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | plk4 | ENSDARG00000004576 |
| mus_musculus | Plk4 | ENSMUSG00000025758 |
| rattus_norvegicus | Plk4 | ENSRNOG00000011654 |
| drosophila_melanogaster | SAK | FBGN0026371 |
Paralogs (4): PLK2 (ENSG00000145632), PLK1 (ENSG00000166851), PLK3 (ENSG00000173846), PLK5 (ENSG00000185988)
Mouse-model phenotypes
Observed phenotypes of the mouse ortholog (MGI:101783) from MGI (Alliance of Genome Resources) — knockout/mutant phenotypes, ranked by annotation count. 12 distinct phenotype terms.
| Mouse phenotype (MP) | Records |
|---|---|
| small testis | 1 |
| abnormal apoptosis | 1 |
| decreased embryo size | 1 |
| embryonic growth arrest | 1 |
| increased circulating follicle stimulating hormone level | 1 |
| abnormal neural tube morphology | 1 |
| abnormal mitosis | 1 |
| decreased testis weight | 1 |
| decreased male germ cell number | 1 |
| absent somites | 1 |
| embryonic lethality, complete penetrance | 1 |
| embryonic lethality between implantation and somite formation, complete penetrance | 1 |
Additional cross-species homologs
Sequence homologs in species beyond Ensembl Compara’s model organisms, by Diamond local protein alignment (% sequence identity; best hit per species). Lower-identity rows are more distant homologs. The matched accessions’ gene symbols aren’t in biobtree yet, so each row shows the UniProt accession.
| Organism | UniProt | Identity | Method |
|---|---|---|---|
| Drosophila persimilis | B4HBU3 | 99.9% | Diamond |
| Drosophila pseudoobscura pseudoobscura | Q2LYK3 | 99.9% | Diamond |
| Pongo abelii | Q5R4L1 | 99.9% | Diamond |
| Saccharomyces cerevisiae YJM789 | A6ZQG7 | 99.2% | Diamond |
| Saccharomyces cerevisiae S288C | P38970 | 99.2% | Diamond |
| Drosophila sechellia | B4IAQ8 | 99.0% | Diamond |
| Drosophila simulans | B4QK53 | 99.0% | Diamond |
| Xenopus tropicalis | P62205 | 96.5% | Diamond |
| Xenopus laevis | P70032 | 96.5% | Diamond |
| Drosophila erecta | B3NE99 | 96.1% | Diamond |
| Drosophila yakuba | B4PDM5 | 96.1% | Diamond |
| Bos taurus | Q2TA25 | 95.7% | Diamond |
| Sus scrofa | Q9N0X0 | 94.8% | Diamond |
| Arabidopsis thaliana | Q683C9 | 93.9% | Diamond |
| Canis lupus familiaris | A0A8I3S724 | 89.4% | Diamond |
| Drosophila virilis | B4LDJ6 | 85.6% | Diamond |
| Drosophila mojavensis | B4KYX8 | 85.4% | Diamond |
| Drosophila grimshawi | B4J3F1 | 83.3% | Diamond |
| Drosophila ananassae | B3M6I4 | 82.9% | Diamond |
| Gallus gallus | Q5ZJH6 | 78.4% | Diamond |
| Patiria pectinifera | D7UQM5 | 76.4% | Diamond |
| Culex quinquefasciatus | B0WAU8 | 74.0% | Diamond |
| Aedes aegypti | Q16W24 | 74.0% | Diamond |
| Caenorhabditis elegans | P34331 | 72.1% | Diamond |
| Oryza sativa Japonica Group | Q60DG4 | 71.6% | Diamond |
| Drosophila willistoni | B4MXR8 | 69.6% | Diamond |
| Kluyveromyces lactis NRRL Y-1140 | Q6CWQ4 | 68.2% | Diamond |
| Eremothecium gossypii ATCC 10895 | Q755C4 | 62.6% | Diamond |
| Schizosaccharomyces pombe 972h- | O59790 | 62.3% | Diamond |
| Nakaseomyces glabratus CBS 138 | Q6FV07 | 62.1% | Diamond |
| Dictyostelium discoideum | Q54WX4 | 60.7% | Diamond |
| Debaryomyces hansenii CBS767 | Q6BVA0 | 60.6% | Diamond |
| Yarrowia lipolytica CLIB122 | Q6C3J2 | 60.2% | Diamond |
| Candida albicans SC5314 | Q59S66 | 59.0% | Diamond |
| Caenorhabditis briggsae | Q621J7 | 57.5% | Diamond |
| Encephalitozoon cuniculi GB-M1 | Q8SRL5 | 51.4% | Diamond |
Genomic neighbors (locus context)
Genes flanking this one on the chromosome (NCBI/Entrez gene neighborhood). Positional context only — some neighbors share regulatory elements (bidirectional promoters, antisense/overlapping transcripts), but chromosomal adjacency is not itself a functional relationship (see Interactions for that).
| Symbol | Type | Entrez |
|---|---|---|
| PGRMC2 | protein-coding | 10424 |
| MFSD8 | protein-coding | 256471 |
| LARP1B | protein-coding | 55132 |
| ABHD18 | protein-coding | 80167 |
| HSPA4L | protein-coding | 22824 |
| INTU | protein-coding | 27152 |
| SLC25A31 | protein-coding | 83447 |
| LINC02615 | ncRNA | 100507487 |
Protein
Protein identifiers
Serine/threonine-protein kinase PLK4 — O00444 (reviewed: O00444)
Alternative names: Polo-like kinase 4, Serine/threonine-protein kinase 18, Serine/threonine-protein kinase Sak
All UniProt accessions (4): O00444, H0YAL6, J3KR82, J3KR84
UniProt curated annotations — full annotation on UniProt →
Function. Serine/threonine-protein kinase that plays a central role in centriole duplication. Able to trigger procentriole formation on the surface of the parental centriole cylinder, leading to the recruitment of centriole biogenesis proteins such as SASS6, CPAP, CCP110, CEP135 and gamma-tubulin. When overexpressed, it is able to induce centrosome amplification through the simultaneous generation of multiple procentrioles adjoining each parental centriole during S phase. Phosphorylates ‘Ser-151’ of FBXW5 during the G1/S transition, leading to inhibit FBXW5 ability to ubiquitinate SASS6. Its central role in centriole replication suggests a possible role in tumorigenesis, centrosome aberrations being frequently observed in tumors. Also involved in deuterosome-mediated centriole amplification in multiciliated that can generate more than 100 centrioles. Also involved in trophoblast differentiation by phosphorylating HAND1, leading to disrupt the interaction between HAND1 and MDFIC and activate HAND1. Phosphorylates CDC25C and CHEK2. Required for the recruitment of STIL to the centriole and for STIL-mediated centriole amplification. Phosphorylates CEP131 at ‘Ser-78’ and PCM1 at ‘Ser-372’ which is essential for proper organization and integrity of centriolar satellites.
Subunit / interactions. Homodimer. Interacts with CEP152 (via N-terminus). Interacts with CEP78; this interaction may be important for proper PLK4 localization to the centriole and PLK4-induced overduplication of centrioles. Interacts with CEP131. Interacts simultaneously with TENT5C and CEP192. Interacts with TENT5C; this interaction leads to the TENT5C recruitment in the centrosome. Interacts with CEP85; this interaction may be important in cell migration and centriole assembly.
Subcellular location. Cytoplasm. Cytoskeleton. Microtubule organizing center. Centrosome. Centriole. Nucleus. Nucleolus. Cleavage furrow.
Post-translational modifications. Acetylation by KAT2A and KAT2B impairs kinase activity by shifting the kinase to an inactive conformation. Ubiquitinated; leading to its degradation by the proteasome. Deubiquitinated by USP54; leading to PLK4 stabilization. Tyrosine-phosphorylated by TEC.
Disease relevance. Microcephaly and chorioretinopathy, autosomal recessive, 2 (MCCRP2) [MIM:616171] A severe disorder characterized by microcephaly, delayed psychomotor development, growth retardation with dwarfism, and ocular abnormalities. The disease is caused by variants affecting the gene represented in this entry.
Domain organisation. Cryptic POLO box 1 (CPB1) and Cryptic POLO box 2 (CPB2) domains can simultaneously bind to both TENT5C and CEP192.
Induction. Down-regulated in HCT 116 colorectal cancer cells, leading to aberrant centrioles composed of disorganized cylindrical microtubules and displaced appendages. Down-regulated by p53/TP53.
Similarity. Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. CDC5/Polo subfamily.
Isoforms (3)
| UniProt ID | Names | Canonical? |
|---|---|---|
| O00444-1 | 1 | yes |
| O00444-2 | 2 | |
| O00444-3 | 3 |
RefSeq proteins (14): NP_001177728, NP_001177730, NP_001428286, NP_001428287, NP_001428288, NP_001428289, NP_001428290, NP_001428291, NP_001428295, NP_001428296, NP_001428297, NP_001428298, NP_001428300, NP_055079* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR000719 | Prot_kinase_dom | Domain |
| IPR000959 | POLO_box_dom | Domain |
| IPR008266 | Tyr_kinase_AS | Active_site |
| IPR011009 | Kinase-like_dom_sf | Homologous_superfamily |
| IPR017441 | Protein_kinase_ATP_BS | Binding_site |
| IPR033696 | POLO_box_Plk4_C | Domain |
| IPR033698 | POLO_box_Plk4_2 | Domain |
| IPR033699 | POLO_box_Plk4_1 | Domain |
| IPR046437 | Ser_Thr-PK_POLO_box_1_sf | Homologous_superfamily |
| IPR047108 | Plk4-like_POLO_box_2_sf | Homologous_superfamily |
Pfam: PF00069, PF18190, PF18409
Enzyme classification (BRENDA)
- EC 2.7.11.21 — polo kinase (BRENDA: 16 organisms, 193 substrates, 436 inhibitors, 20 Km, 14 kcat entries)
Substrate kinetics (BRENDA)
3 substrates with measured Km, best-characterized 3. Km ranges are aggregated across organisms/conditions.
| Substrate | Km (mM) | Measurements |
|---|---|---|
| ATP | 0.0002–0.0076 | 13 |
| CDC25C | 0.0006–0.0008 | 6 |
| CASEIN | 0.0014 | 1 |
Catalyzed reactions (Rhea)
- L-seryl-[protein] + ATP = O-phospho-L-seryl-[protein] + ADP + H(+) (RHEA:17989)
- L-threonyl-[protein] + ATP = O-phospho-L-threonyl-[protein] + ADP + H(+) (RHEA:46608)
UniProt features (105 total): strand 27, helix 25, mutagenesis site 9, sequence variant 8, sequence conflict 8, compositionally biased region 5, turn 5, modified residue 5, domain 4, region of interest 3, binding site 2, splice variant 2, chain 1, active site 1
Structure
Experimental structures (PDB)
19 structures by resolution:
| PDB | Title | Method | Resolution (Å) |
|---|---|---|---|
| 9Y9N | PLK4 in complex with Compound 25 … | X-RAY DIFFRACTION | 1.81 |
| 3COK | Crystal structure of PLK4 kinase | X-RAY DIFFRACTION | 2.25 |
| 9O63 | Crystal structure of PLK4 and RP1664 complex | X-RAY DIFFRACTION | 2.26 |
| 4JXF | Crystal Structure of PLK4 Kinase with an inhibitor: 400631 … | X-RAY DIFFRACTION | 2.4 |
| 5LHZ | PB3 Domain of Human PLK4 in Complex with Coiled-Coil Domain of STIL | X-RAY DIFFRACTION | 2.51 |
| 4YYP | Crystal structure of human PLK4-PB3 in complex with STIL-CC | X-RAY DIFFRACTION | 2.6 |
| 4N9J | Crystal structure of the cryptic polo box domain of human Plk4 | X-RAY DIFFRACTION | 2.6 |
| 6N45 | Crystal structure of the cryptic polo box domain of human activated Plk4 variant 1 | X-RAY DIFFRACTION | 2.64 |
| 4YUR | Crystal Structure of Plk4 Kinase Domain Bound to Centrinone | X-RAY DIFFRACTION | 2.65 |
| 8XPG | The Crystal Structure of polo box domain of Plk4 from Biortus. | X-RAY DIFFRACTION | 2.7 |
| 9Y9B | PLK4 in complex with Compound 6 … | X-RAY DIFFRACTION | 2.7 |
| 4N7V | Crystal structure of human Plk4 cryptic polo box (CPB) in complex with a Cep152 … | X-RAY DIFFRACTION | 2.76 |
| 4N7Z | Crystal structure of human Plk4 cryptic polo box (CPB) in complex with a Cep192 … | X-RAY DIFFRACTION | 2.85 |
| 5LHY | PB3 Domain of Human PLK4 (apo) | X-RAY DIFFRACTION | 3.31 |
| 6N46 | Crystal structure of the cryptic polo box domain of a human activated Plk4 | X-RAY DIFFRACTION | 3.71 |
| 6W3I | Crystal structure of a FAM46C mutant in complex with Plk4 | X-RAY DIFFRACTION | 3.8 |
| 6W3J | Crystal structure of the FAM46C/Plk4/Cep192 complex | X-RAY DIFFRACTION | 4.38 |
| 6W38 | Crystal structure of the FAM46C/Plk4 complex | X-RAY DIFFRACTION | 4.48 |
| 2N19 | STIL binding to the Polo-box domain 3 of PLK4 regulates centriole duplication | SOLUTION NMR |
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-O00444-F1 | 66.31 | 0.37 |
Human Protein Atlas
Protein class: Enzymes, ENZYME proteins, Transferases, Kinases, Predicted intracellular proteins, Disease related genes, Potential drug targets, Human disease related genes, Congenital malformations, Other congenital malformations, Essential proteins
Protein evidence: Evidence at protein level
Subcellular location (HPA, imaging): centrosome; cytosol
Antibody reliability (HPA): IH approved · IF supported
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Catalytic / active sites (1)
| Position | Role |
|---|---|
| 136 | proton acceptor |
Ligand- & substrate-binding residues (2)
| Position | Role |
|---|---|
| 18–26 | ATP |
| 41 | ATP |
Post-translational modifications (5)
| Type | Positions |
|---|---|
| N6-acetyllysine | 45, 46 |
| Phosphoserine | 401, 665, 817 |
Mutagenesis-validated functional residues (9)
| Position | Phenotype |
|---|---|
| 13 | does not affect interaction with ubp54. |
| 41 | abolishes ability to phosphorylate cdc25c and chek2. |
| 151 | does not affect interaction with ubp54. |
| 154 | catalytically inactive mutant that causes some centrosome amplification above background levels when overexpressed. |
| 162 | abolishes interaction with ubp54. |
| 167 | does not affect interaction with ubp54. |
| 170 | activating mutant. |
| 669 | does not affect the interaction with tent5c. |
| 670 | decreases substantially the interaction with tent5c. does not affect localization to the centrosome. loss of tent5c recruitment to the … |
Function
Pathways and Gene Ontology
Reactome pathways
7 curated (TAS) of 16; 0 disease pathways. Curated-first; evidence = TAS (manually curated) vs IEA (electronic inference).
16 pathways:
| ID | Pathway | Evidence |
|---|---|---|
| R-HSA-8854518 | AURKA Activation by TPX2 | curated |
| R-HSA-5620912 | Anchoring of the basal body to the plasma membrane | curated |
| R-HSA-380259 | Loss of Nlp from mitotic centrosomes | curated |
| R-HSA-380284 | Loss of proteins required for interphase microtubule organization from the centrosome | curated |
| R-HSA-380320 | Recruitment of NuMA to mitotic centrosomes | curated |
| R-HSA-380270 | Recruitment of mitotic centrosome proteins and complexes | curated |
| R-HSA-2565942 | Regulation of PLK1 Activity at G2/M Transition | curated |
| R-HSA-1640170 | Cell Cycle | — |
| R-HSA-69278 | Cell Cycle, Mitotic | — |
| R-HSA-380287 | Centrosome maturation | — |
| R-HSA-5617833 | Cilium Assembly | — |
| R-HSA-69275 | G2/M Transition | — |
| R-HSA-68886 | M Phase | — |
| R-HSA-453274 | Mitotic G2-G2/M phases | — |
| R-HSA-68877 | Mitotic Prometaphase | — |
| R-HSA-1852241 | Organelle biogenesis and maintenance | — |
MSigDB gene sets: 492 (showing top):
E2F_Q4_01, RODRIGUES_THYROID_CARCINOMA_ANAPLASTIC_UP, GOBP_EMBRYO_DEVELOPMENT_ENDING_IN_BIRTH_OR_EGG_HATCHING, GOBP_EPITHELIUM_DEVELOPMENT, WANG_CLIM2_TARGETS_UP, KANG_DOXORUBICIN_RESISTANCE_UP, GNF2_CENPF, GOBP_REGULATION_OF_MICROTUBULE_BASED_PROCESS, SEMBA_FHIT_TARGETS_DN, CCAWYNNGAAR_UNKNOWN, CROONQUIST_NRAS_SIGNALING_DN, GRAESSMANN_APOPTOSIS_BY_DOXORUBICIN_DN, KENNY_CTNNB1_TARGETS_UP, GRAESSMANN_RESPONSE_TO_MC_AND_DOXORUBICIN_DN, GENTILE_RESPONSE_CLUSTER_D3
GO Biological Process (7): protein phosphorylation (GO:0006468), centriole replication (GO:0007099), positive regulation of centriole replication (GO:0046601), cilium assembly (GO:0060271), trophoblast giant cell differentiation (GO:0060707), de novo centriole assembly involved in multi-ciliated epithelial cell differentiation (GO:0098535), regulation of cell cycle process (GO:0010564)
GO Molecular Function (9): protein serine/threonine kinase activity (GO:0004674), ATP binding (GO:0005524), identical protein binding (GO:0042802), protein serine kinase activity (GO:0106310), nucleotide binding (GO:0000166), protein kinase activity (GO:0004672), protein binding (GO:0005515), kinase activity (GO:0016301), transferase activity (GO:0016740)
GO Cellular Component (9): XY body (GO:0001741), nucleus (GO:0005634), nucleolus (GO:0005730), centrosome (GO:0005813), centriole (GO:0005814), cytosol (GO:0005829), cleavage furrow (GO:0032154), deuterosome (GO:0098536), procentriole (GO:0120098)
Reactome top-level categories
10 top-level categories:
| Category | Pathways |
|---|---|
| G2/M Transition | 3 |
| Centrosome maturation | 2 |
| Cell Cycle, Mitotic | 2 |
| Loss of proteins required for interphase microtubule organization from the centrosome | 1 |
| Mitotic Prometaphase | 1 |
| Assembly of the 9+0 primary cilium | 1 |
| Organelle biogenesis and maintenance | 1 |
| M Phase | 1 |
| Mitotic G2-G2/M phases | 1 |
| Cell Cycle | 1 |
GO top-level categories
46 GO namespaces:
| Category | Terms |
|---|---|
| intracellular membraneless organelle | 3 |
| cell cycle process | 2 |
| protein kinase activity | 2 |
| microtubule organizing center | 2 |
| cytoplasm | 2 |
| cellular anatomical structure | 2 |
| phosphorylation | 1 |
| protein modification process | 1 |
| centrosome duplication | 1 |
| centriole assembly | 1 |
| centriole replication | 1 |
| regulation of centriole replication | 1 |
| positive regulation of cytoskeleton organization | 1 |
| positive regulation of cell cycle process | 1 |
| positive regulation of organelle assembly | 1 |
| axoneme assembly | 1 |
| intraciliary transport involved in cilium assembly | 1 |
| cilium organization | 1 |
| protein localization to cilium | 1 |
| organelle assembly | 1 |
| trans-Golgi to periciliary membrane compartment transport | 1 |
| plasma membrane bounded cell projection assembly | 1 |
| ciliary transition zone assembly | 1 |
| cell differentiation involved in embryonic placenta development | 1 |
| de novo centriole assembly | 1 |
| multi-ciliated epithelial cell differentiation | 1 |
| regulation of cell cycle | 1 |
| adenyl ribonucleotide binding | 1 |
| purine ribonucleoside triphosphate binding | 1 |
| anion binding | 1 |
| protein binding | 1 |
| nucleoside phosphate binding | 1 |
| heterocyclic compound binding | 1 |
| kinase activity | 1 |
| phosphotransferase activity, alcohol group as acceptor | 1 |
| catalytic activity, acting on a protein | 1 |
| binding | 1 |
| transferase activity, transferring phosphorus-containing groups | 1 |
| catalytic activity | 1 |
| sex chromosome | 1 |
| condensed chromatin of inactivated sex chromosome | 1 |
| intracellular membrane-bounded organelle | 1 |
| nuclear lumen | 1 |
| centriole | 1 |
| cell division site | 1 |
| plasma membrane region | 1 |
Experimentally-supported GO annotations
GO terms backed by direct experimental evidence (ECO experimental codes) — 9 of 25 annotations. The rest are phylogenetic / computational / electronic (IEA).
9 experimentally-supported GO terms:
| GO term | NS | Evidence |
|---|---|---|
| centriole replication | BP | direct assay |
| cilium assembly | BP | mutant phenotype |
| positive regulation of centriole replication | BP | direct assay |
| protein phosphorylation | BP | direct assay |
| centriole | CC | direct assay |
| centrosome | CC | direct assay |
| procentriole | CC | direct assay |
| identical protein binding | MF | physical interaction |
| protein serine/threonine kinase activity | MF | direct assay |
Protein interactions and networks
STRING
showing 15 of 2,169 interactions by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| PLK4 | SASS6 | Q6UVJ0 | 984 |
| PLK4 | CPAP | Q9HC77 | 966 |
| PLK4 | CEP135 | Q66GS9 | 964 |
| PLK4 | CCP110 | O43303 | 952 |
| PLK4 | CEP152 | O94986 | 938 |
| PLK4 | TUBG1 | P23258 | 840 |
| PLK4 | CNTLN | Q9NXG0 | 835 |
| PLK4 | STIL | Q15468 | 834 |
| PLK4 | CETN2 | P41208 | 815 |
| PLK4 | CEP63 | Q96MT8 | 813 |
| PLK4 | CEP192 | Q8TEP8 | 808 |
| PLK4 | PCNT | O95613 | 790 |
| PLK4 | PLK5 | Q496M5 | 741 |
| PLK4 | BUB1B | O60566 | 705 |
| PLK4 | CEP295 | Q9C0D2 | 696 |
IntAct
Human interaction partners of PLK4 in IntAct, one row per partner (best MIscore; records = supporting IntAct interaction records).
showing 30 of 38 partners by confidence:
| Partner | Interaction type | MIscore | Records |
|---|---|---|---|
| CEP152 | physical association | 0.850 | 20 |
| ELOA | physical association | 0.720 | 6 |
| CEP192 | direct interaction | 0.700 | 13 |
| BTRC | physical association | 0.680 | 4 |
| STIL | colocalization | 0.660 | 9 |
| SFN | physical association | 0.650 | 3 |
| ECT2 | physical association | 0.600 | 3 |
| AIRIM | physical association | 0.560 | 3 |
| ARR3 | physical association | 0.560 | 3 |
| DNAJB13 | physical association | 0.560 | 3 |
| DUN1 | physical association | 0.560 | 3 |
| GAS8 | physical association | 0.560 | 3 |
| OSBPL3 | physical association | 0.560 | 3 |
| P4HB | physical association | 0.560 | 3 |
| RSM26 | physical association | 0.560 | 3 |
| SKI8 | physical association | 0.560 | 3 |
| SPAG5 | physical association | 0.560 | 3 |
| TENT5B | physical association | 0.560 | 3 |
| TFIP11 | physical association | 0.560 | 3 |
| TRIM54 | physical association | 0.560 | 3 |
| YPK2 | physical association | 0.560 | 3 |
| ZBTB39 | physical association | 0.560 | 3 |
| YWHAE | physical association | 0.560 | 2 |
| YWHAH | physical association | 0.560 | 1 |
| CPAP | phosphorylation reaction | 0.440 | 1 |
| CCDC85C | physical association | 0.400 | 2 |
| DUSP23 | physical association | 0.400 | 1 |
| CEP76 | physical association | 0.370 | 1 |
| CHD3 | physical association | 0.370 | 1 |
| MAD1L1 | physical association | 0.370 | 1 |
BioGRID (188 interactions; top human partners by supporting records): ACTR2 (Affinity Capture-MS; 4 records), CEP152 (Proximity Label-MS; 4 records), BTRC (Two-hybrid; 3 records), ALMS1 (Proximity Label-MS; 2 records), CEP192 (Proximity Label-MS; 2 records), CEP350 (Proximity Label-MS; 2 records), CEP63 (Proximity Label-MS; 2 records), CEP85 (Proximity Label-MS; 2 records), CYLD (Affinity Capture-Western; 2 records), FBXW5 (Affinity Capture-Western; 2 records), MIB1 (Affinity Capture-Western; 2 records), NEDD1 (Proximity Label-MS; 2 records), NEK7 (Affinity Capture-Western; 2 records), PLOD1 (Affinity Capture-MS; 2 records), SASS6 (Proximity Label-MS; 2 records)
SIGNOR signaling
showing 8 of 17 signaling interactions:
| A | Effect | B | Mechanism |
|---|---|---|---|
| PLK4 | up-regulates | PLK4 | phosphorylation |
| PLK4 | up-regulates | CENPJ | phosphorylation |
| PLK4 | “up-regulates activity” | PCM1 | phosphorylation |
| PLK4 | “up-regulates quantity” | CDC25C | phosphorylation |
| PLK4 | “up-regulates activity” | CEP131 | phosphorylation |
| PLK4 | “up-regulates activity” | TUBGCP6 | phosphorylation |
| PLK4 | “up-regulates activity” | NEDD1 | phosphorylation |
| PLK4 | “down-regulates activity” | FBXW5 | phosphorylation |
Protein complexes (CORUM) (2)
Experimentally-characterized complexes this protein is a subunit of (★ = the complex contains a known drug target).
2 complexes by size:
| Complex | Subunits | Members |
|---|---|---|
| PLK4-TENT5C complex | 2 | PLK4, TENT5C |
| PLK4-STIL complex | 2 | PLK4, STIL |
Enriched among interaction partners
Reactome pathways and GO biological processes over-represented among this gene’s 38 IntAct physical interaction partners (hypergeometric vs the genome-wide background, BH-FDR, gene-set size 15–500, ranked by fold). A functional readout of the neighbourhood — distinct from this gene’s own memberships above, and biased toward well-studied / hub proteins, so read it as themes rather than proof.
Reactome pathways:
| Pathway | Partners | Fold | FDR |
|---|---|---|---|
| Loss of Nlp from mitotic centrosomes | 6 | 47.6× | 9e-08 |
| Loss of proteins required for interphase microtubule organization from the centrosome | 6 | 47.6× | 9e-08 |
| AURKA Activation by TPX2 | 6 | 45.7× | 9e-08 |
| Regulation of PLK1 Activity at G2/M Transition | 7 | 44.4× | 2e-08 |
| Recruitment of mitotic centrosome proteins and complexes | 6 | 40.8× | 2e-07 |
| Recruitment of NuMA to mitotic centrosomes | 6 | 35.0× | 3e-07 |
| Anchoring of the basal body to the plasma membrane | 6 | 33.9× | 3e-07 |
| Mitotic Prometaphase | 5 | 17.3× | 9e-05 |
Disease & clinical
Genetic variants
Variant evidence for PLK4: 722 ClinVar records (34 pathogenic / likely pathogenic). Per-variant detail is on Sugi Variant.
ClinVar
722 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 21 |
| Likely pathogenic | 13 |
| Uncertain significance | 355 |
| Likely benign | 254 |
| Benign | 22 |
Top pathogenic / likely-pathogenic (15)
Showing the 15 best-reviewed of 34 pathogenic / likely-pathogenic ClinVar records, ranked by ClinVar review status (expert panel → multiple submitters → single submitter), then by number of submitting labs.
| Variant ID | HGVS | Classification | Review | Submitters |
|---|---|---|---|---|
| 1495735 | NM_014264.5(PLK4):c.1358+1G>C | Likely pathogenic | criteria provided, multiple submitters, no conflicts | 2 |
| 960158 | NM_014264.5(PLK4):c.37A>T (p.Lys13Ter) | Pathogenic | criteria provided, single submitter | 1 |
| 1021501 | NM_014264.5(PLK4):c.1679del (p.Cys560fs) | Pathogenic | criteria provided, single submitter | 1 |
| 1075626 | NM_014264.5(PLK4):c.60del (p.Gly21fs) | Pathogenic | criteria provided, single submitter | 1 |
| 1452199 | NM_014264.5(PLK4):c.1201del (p.Ser401fs) | Pathogenic | criteria provided, single submitter | 1 |
| 1455498 | NM_014264.5(PLK4):c.319_331del (p.Pro107fs) | Pathogenic | criteria provided, single submitter | 1 |
| 1457246 | NM_014264.5(PLK4):c.168_169del (p.Arg56fs) | Pathogenic | criteria provided, single submitter | 1 |
| 1458419 | NM_014264.5(PLK4):c.62del (p.Gly21fs) | Pathogenic | criteria provided, single submitter | 1 |
| 1952871 | NM_014264.5(PLK4):c.799C>T (p.Arg267Ter) | Pathogenic | criteria provided, single submitter | 1 |
| 1976021 | NM_014264.5(PLK4):c.1567_1568insTTGT (p.Lys523fs) | Pathogenic | criteria provided, single submitter | 1 |
| 2028466 | NM_014264.5(PLK4):c.419_420del (p.Leu139_Ser140insTer) | Pathogenic | criteria provided, single submitter | 1 |
| 2095296 | NM_014264.5(PLK4):c.644_645del (p.Thr215fs) | Pathogenic | criteria provided, single submitter | 1 |
| 2098334 | NM_014264.5(PLK4):c.2701C>T (p.Gln901Ter) | Pathogenic | criteria provided, single submitter | 1 |
| 2106876 | NM_014264.5(PLK4):c.1796T>G (p.Leu599Ter) | Pathogenic | criteria provided, single submitter | 1 |
| 2788633 | NM_014264.5(PLK4):c.1261_1264del (p.Ser421fs) | Pathogenic | criteria provided, single submitter | 1 |
Per-variant reference — Sugi Variant
Explore PLK4’s pathogenic and likely-pathogenic variants individually — each with its ClinVar classification and conditions, applied ACMG criteria (ClinGen expert panel, where curated), the calibrated in-silico predictors (AlphaMissense, REVEL, SaProt, conservation), gnomAD frequency, and the predictor-disagreement QC signal — on Sugi Variant.
SpliceAI
Top 10 splice-impact sites by Δscore (adjacent positions with the same effect merged into one range; 31 predictions of 1,245):
| Position(s) | Effect | Δscore | Sites |
|---|---|---|---|
| 4:127881927–127881928 | donor_loss | 1.0000 | 5 |
| 4:127883554–127883555 | donor_loss | 1.0000 | 5 |
| 4:127885696 | acceptor_gain | 1.0000 | |
| 4:127887497–127887498 | donor_loss | 1.0000 | 5 |
| 4:127891091 | acceptor_gain | 1.0000 | |
| 4:127891197–127891198 | donor_loss | 1.0000 | 6 |
| 4:127892448 | acceptor_gain | 1.0000 | |
| 4:127894948 | acceptor_gain | 1.0000 | |
| 4:127881165–127881166 | donor_loss | 0.9900 | 5 |
| 4:127881829 | acceptor_gain | 0.9900 |
AlphaMissense
1,923 missense substitutions predicted likely pathogenic (of 6,425 scored), across 444 residues. Top 20 hotspot residues, ranked by the number of likely-pathogenic substitutions (of those reachable by a single-nucleotide change), then by mean score:
| Residue | Likely-pathogenic substitutions | Mean am_pathogenicity | Max am_pathogenicity |
|---|---|---|---|
| M48 | 9 | 0.930 | 0.996 |
| M42 | 9 | 0.912 | 0.984 |
| M53 | 9 | 0.900 | 0.990 |
| D154 | 8 | 1.000 | 1.000 |
| D136 | 8 | 0.998 | 1.000 |
| D193 | 8 | 0.997 | 0.999 |
| F155 | 8 | 0.992 | 0.999 |
| F211 | 8 | 0.991 | 0.999 |
| H134 | 8 | 0.990 | 0.998 |
| F23 | 8 | 0.989 | 1.000 |
| N141 | 8 | 0.985 | 0.998 |
| F79 | 8 | 0.983 | 0.999 |
| D81 | 8 | 0.977 | 0.998 |
| H128 | 8 | 0.967 | 0.993 |
| D44 | 8 | 0.958 | 0.994 |
| F692 | 8 | 0.956 | 0.996 |
| F12 | 8 | 0.955 | 1.000 |
| F911 | 8 | 0.949 | 0.998 |
| F264 | 8 | 0.941 | 0.996 |
| H69 | 8 | 0.938 | 0.994 |
HPA cancer prognostics
RNA cancer specificity: Low cancer specificity
Human Protein Atlas survival analysis — favorable = higher expression predicts better survival.
6 prognostic cancer types:
| Cancer | Prognostic | p-value |
|---|---|---|
| Kidney Chromophobe (TCGA) | unfavorable | 1.32e-05 |
| Liver Hepatocellular Carcinoma (TCGA) | unfavorable | 4.39e-05 |
| Lung Adenocarcinoma (TCGA) | unfavorable | 9.07e-05 |
| Liver Hepatocellular Carcinoma (validation) | unfavorable | 0.00011 |
| Lung Adenocarcinoma (validation) | unfavorable | 0.000377 |
| Pancreatic Adenocarcinoma (validation) | unfavorable | 0.000631 |
Disease associations
OMIM: gene MIM:605031 | disease phenotypes: MIM:616171
GenCC curated gene-disease
3 curated gene-disease records:
| Disease | Classification | Inheritance | Records |
|---|---|---|---|
| microcephaly and chorioretinopathy 2 | Definitive | Autosomal recessive | 4 |
| microcephaly and chorioretinopathy 1 | Supportive | Autosomal recessive | |
| Seckel syndrome | Supportive | Autosomal recessive |
Genomics England panels (PanelApp)
Clinical diagnostic gene panels including this gene (11 panels, 9 green/diagnostic-grade). Confidence: green = diagnostic, amber = moderate.
11 panels:
| Panel | Rating |
|---|---|
| DDG2P | green |
| Fetal anomalies | green |
| Hypotonic infant | green |
| Intellectual disability | green |
| Leukodystrophy, childhood onset | green |
| Monogenic short stature | green |
| Paediatric disorders | green |
| Retinal disorders | green |
| Severe microcephaly | green |
| Anophthalmia or microphthalmia | amber |
| Structural eye disease | amber |
Mondo (3): microcephaly and chorioretinopathy 2 (MONDO:0014516), microcephaly and chorioretinopathy 1 (MONDO:0009624), Seckel syndrome (MONDO:0019342)
Orphanet (1): Seckel syndrome (Orphanet:808)
HPO phenotypes
showing 60 of 66 phenotypes (HPO-id order):
| HPO | Term |
|---|---|
| HP:0000007 | Autosomal recessive inheritance |
| HP:0000252 | Microcephaly |
| HP:0000275 | Narrow face |
| HP:0000307 | Pointed chin |
| HP:0000340 | Sloping forehead |
| HP:0000347 | Micrognathia |
| HP:0000363 | Abnormal earlobe morphology |
| HP:0000387 | Absent earlobe |
| HP:0000411 | Protruding ear |
| HP:0000431 | Wide nasal bridge |
| HP:0000444 | Convex nasal ridge |
| HP:0000448 | Prominent nose |
| HP:0000463 | Anteverted nares |
| HP:0000482 | Microcornea |
| HP:0000486 | Strabismus |
| HP:0000488 | Retinopathy |
| HP:0000494 | Downslanted palpebral fissures |
| HP:0000499 | Abnormal eyelash morphology |
| HP:0000501 | Glaucoma |
| HP:0000505 | Visual impairment |
| HP:0000518 | Cataract |
| HP:0000520 | Proptosis |
| HP:0000543 | Optic disc pallor |
| HP:0000568 | Microphthalmia |
| HP:0000639 | Nystagmus |
| HP:0000648 | Optic atrophy |
| HP:0000682 | Abnormal dental enamel morphology |
| HP:0001249 | Intellectual disability |
| HP:0001250 | Seizure |
| HP:0001263 | Global developmental delay |
| HP:0001272 | Cerebellar atrophy |
| HP:0001276 | Hypertonia |
| HP:0001321 | Cerebellar hypoplasia |
| HP:0001338 | Partial agenesis of the corpus callosum |
| HP:0001344 | Absent speech |
| HP:0001363 | Craniosynostosis |
| HP:0001382 | Joint hypermobility |
| HP:0001385 | Hip dysplasia |
| HP:0001511 | Intrauterine growth retardation |
| HP:0001762 | Talipes equinovarus |
| HP:0001852 | Sandal gap |
| HP:0002059 | Cerebral atrophy |
| HP:0002120 | Cerebral cortical atrophy |
| HP:0002209 | Sparse scalp hair |
| HP:0002269 | Abnormality of neuronal migration |
| HP:0002650 | Scoliosis |
| HP:0002750 | Delayed skeletal maturation |
| HP:0002943 | Thoracic scoliosis |
| HP:0003577 | Congenital onset |
| HP:0004209 | Clinodactyly of the 5th finger |
| HP:0004322 | Short stature |
| HP:0004326 | Cachexia |
| HP:0004422 | Biparietal narrowing |
| HP:0004626 | Lumbar scoliosis |
| HP:0007165 | Periventricular heterotopia |
| HP:0007360 | Aplasia/Hypoplasia of the cerebellum |
| HP:0007401 | Macular atrophy |
| HP:0007495 | Prematurely aged appearance |
| HP:0007703 | Abnormal retinal pigmentation |
| HP:0009804 | Tooth agenesis |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: yes
ChEMBL targets (2): CHEMBL3788 (SINGLE PROTEIN), CHEMBL5465203 (PROTEIN-PROTEIN INTERACTION)
Drugs by curated mechanism of action (ChEMBL)
Drugs whose curated ChEMBL mechanism of action targets the PLK4 protein itself — single-protein targets only (drugs acting on a protein family or complex that merely includes it are excluded). Includes antibodies and oligonucleotides that bioactivity screening does not capture.
3 curated-mechanism drugs:
| Drug | Modality | Max phase |
|---|---|---|
| CFI-400945 | Small molecule | 2 |
| OCIFISERTIB | Small molecule | 2 |
| RG-1530 | Small molecule | 1 |
Molecules with ChEMBL bioactivity
Phase ≥1, by development phase (incl. off-target/promiscuous compounds). Patent mentions across the top 20 by phase: 553,520 (via chembl_molecule»patent_compound — counts attach to the compound, not the gene–compound relationship, so off-target/promiscuous molecules can dominate).
showing 60 of 65 molecules by phase:
| Molecule | Name | Phase | Patents |
|---|---|---|---|
| CHEMBL1289926 | AXITINIB | 4 | 16,510 |
| CHEMBL2403108 | CERITINIB | 4 | 9,002 |
| CHEMBL601719 | CRIZOTINIB | 4 | 15,133 |
| CHEMBL2028663 | DABRAFENIB | 4 | 13,060 |
| CHEMBL5416410 | DASATINIB | 4 | 674 |
| CHEMBL1983268 | ENTRECTINIB | 4 | 3,737 |
| CHEMBL553 | ERLOTINIB | 4 | 109,860 |
| CHEMBL1287853 | FEDRATINIB | 4 | 3,770 |
| CHEMBL2103830 | FOSTAMATINIB | 4 | 4,026 |
| CHEMBL3301622 | GILTERITINIB | 4 | 2,542 |
| CHEMBL941 | IMATINIB | 4 | 113,105 |
| CHEMBL608533 | MIDOSTAURIN | 4 | 7,641 |
| CHEMBL1078178 | MOMELOTINIB | 4 | 3,649 |
| CHEMBL502835 | NINTEDANIB | 4 | 8,978 |
| CHEMBL477772 | PAZOPANIB | 4 | 16,241 |
| CHEMBL1789941 | RUXOLITINIB | 4 | 12,161 |
| CHEMBL1336 | SORAFENIB | 4 | 87,476 |
| CHEMBL535 | SUNITINIB | 4 | 80,232 |
| CHEMBL24828 | VANDETANIB | 4 | 43,290 |
| CHEMBL483158 | ALISERTIB | 3 | 2,433 |
| CHEMBL428690 | ALVOCIDIB | 3 | |
| CHEMBL491473 | CEDIRANIB | 3 | |
| CHEMBL522892 | DOVITINIB | 3 | |
| CHEMBL603469 | LESTAURTINIB | 3 | |
| CHEMBL223360 | LINIFANIB | 3 | |
| CHEMBL3426621 | RIPASUDIL | 3 | |
| CHEMBL91829 | RUBOXISTAURIN | 3 | |
| CHEMBL3408947 | OCIFISERTIB | 2 | |
| CHEMBL495727 | AT-9283 | 2 | |
| CHEMBL1231124 | AZD-1480 | 2 | |
| CHEMBL575448 | BMS-754807 | 2 | |
| CHEMBL460702 | BMS-777607 | 2 | |
| CHEMBL1967878 | CENISERTIB | 2 | |
| CHEMBL402548 | DANUSERTIB | 2 | |
| CHEMBL3039513 | DECERNOTINIB | 2 | |
| CHEMBL215152 | DEFOSBARASERTIB | 2 | |
| CHEMBL6246 | ELLAGIC ACID | 2 | |
| CHEMBL482968 | ENMD-2076 | 2 | |
| CHEMBL1230609 | FORETINIB | 2 | |
| CHEMBL3989914 | GLESATINIB | 2 | |
| CHEMBL1980297 | ILORASERTIB | 2 | |
| CHEMBL3545307 | MERESTINIB | 2 | |
| CHEMBL253969 | OSI-632 | 2 | |
| CHEMBL521851 | PICTILISIB | 2 | |
| CHEMBL475251 | R-406 | 2 | |
| CHEMBL1738757 | REBASTINIB | 2 | |
| CHEMBL1721885 | SU-014813 | 2 | |
| CHEMBL124660 | TANDUTINIB | 2 | |
| CHEMBL572878 | TOZASERTIB | 2 | |
| CHEMBL1980391 | RG-1530 | 1 | |
| CHEMBL3545360 | ASP-3026 | 1 | |
| CHEMBL2041933 | AZD-7762 | 1 | |
| CHEMBL482967 | CYC-116 | 1 | |
| CHEMBL260933 | GS 6201 | 1 | |
| CHEMBL1090479 | GSK-1070916 | 1 | |
| CHEMBL1908397 | KW-2449 | 1 | |
| CHEMBL3600873 | MK-5108 | 1 | |
| CHEMBL259084 | MLN-8054 | 1 | |
| CHEMBL1084546 | PF-00562271 | 1 | |
| CHEMBL3128043 | PF-03758309 | 1 |
PharmGKB: 1 entry (CPIC guideline: no)
GtoPdb / IUPHAR curated pharmacology
(IUPHAR/BPS Guide to Pharmacology — expert-curated)
Target class: enzyme — Polo-like kinase (PLK) family
Most potent curated ligand interactions (7 total), top 7:
| Ligand | Action | Affinity | Parameter |
|---|---|---|---|
| centrinone B | Inhibition | 9.23 | pKi |
| CZS-241 | Inhibition | 8.59 | pIC50 |
| ocifisertib | Inhibition | 8.55 | pIC50 |
| RP-1664 | Inhibition | 8.52 | pIC50 |
| RG-1530 | Inhibition | 7.96 | pKd |
| axitinib | Inhibition | 7.34 | pIC50 |
| XMD8-92 | Inhibition | 6.22 | pKd |
Binding affinities (BindingDB)
649 measured of 983 human assays (986 total across all organisms); most potent 50 below. Values come from heterogeneous assays and are not directly comparable.
| Ligand | Measure | Value | Patent |
|---|---|---|---|
| 1-[2-(4-methylphenyl)-5-tert-butyl-pyrazol-3-yl]-3-[4-(2-morpholin-4-ylethoxy)naphthalen-1-yl]urea | KD | 0.37 nM | |
| (2’S,3R)-2’-[3-[[(3S)-3-hydroxy-2,3-dihydro-1-benzofuran-7-yl]amino]-2,3,3a,4,5,6,7,7a-octahydro-1H-indazol-6-yl]-5-methoxyspiro[1H-indole-3,1’-cyclopropane]-2-one | IC50 | 0.375 nM | US-20230365537: POLO LIKE KINASE 4 INHIBITORS |
| CHEMBL3408954 | IC50 | 0.64 nM | |
| CHEMBL5407522 | KI | 0.65 nM | |
| CHEMBL5183346 | IC50 | 0.7 nM | |
| CHEMBL3353351 | IC50 | 0.71 nM | |
| CHEMBL5194020 | IC50 | 1.1 nM | |
| CHEMBL3353350 | IC50 | 1.2 nM | |
| CHEMBL5408998 | IC50 | 1.5 nM | |
| Staurosporine | KD | 1.7 nM | |
| CHEMBL5191641 | IC50 | 1.8 nM | |
| CHEMBL5430165 | IC50 | 1.9 nM | |
| (2’S,3R)-2’-[3-[(3-hydroxy-2,3-dihydro-1-benzofuran-7-yl)amino]-2,3,3a,4,5,6,7,7a-octahydro-1H-indazol-6-yl]-5-methoxyspiro[1H-indole-3,1’-cyclopropane]-2-one | IC50 | 2.08 nM | US-20230365537: POLO LIKE KINASE 4 INHIBITORS |
| (2’S,3R)-2’-[3-[(5-ethoxypyrimidin-4-yl)amino]-2,3,3a,4,5,6,7,7a-octahydro-1H-indazol-6-yl]-5-methoxyspiro[1H-indole-3,1’-cyclopropane]-2-one | IC50 | 2.18 nM | US-20230365537: POLO LIKE KINASE 4 INHIBITORS |
| (2’S,3R)-5-methoxy-2’-[3-[(2-methoxy-3-pyridinyl)amino]-2,3,3a,4,5,6,7,7a-octahydro-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one | IC50 | 2.25 nM | US-20230365537: POLO LIKE KINASE 4 INHIBITORS |
| CHEMBL5407696 | IC50 | 2.6 nM | |
| CHEMBL5422518 | IC50 | 3.1 nM | |
| CEP-701 | KD | 3.4 nM | |
| CHEMBL5440306 | IC50 | 3.6 nM | |
| CHEMBL5190548 | IC50 | 3.7 nM | |
| CHEMBL5207473 | IC50 | 3.8 nM | |
| (2’S,3R)-2’-[3-(1-benzofuran-7-ylamino)-2,3,3a,4,5,6,7,7a-octahydro-1H-indazol-6-yl]-5-methoxyspiro[1H-indole-3,1’-cyclopropane]-2-one | IC50 | 3.85 nM | US-20230365537: POLO LIKE KINASE 4 INHIBITORS |
| CHEMBL5201909 | IC50 | 4 nM | |
| (2’S,3R)-5-methoxy-2’-[3-[(5-methoxy-6-piperidin-1-ylpyrimidin-4-yl)amino]-2,3,3a,4,5,6,7,7a-octahydro-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one | IC50 | 4.96 nM | US-20230365537: POLO LIKE KINASE 4 INHIBITORS |
| CHEMBL6188303 | IC50 | 5 nM | |
| CHEMBL3408952 | IC50 | 5.2 nM | |
| Biochemistry 469551 Compound 12 | IC50 | 5.4 nM | |
| CHEMBL5396625 | IC50 | 5.5 nM | |
| CHEMBL5433109 | IC50 | 5.5 nM | |
| 3-methoxy-2-methyl-4-(methylamino)-29-oxa-1,7,17-triazaoctacyclo[12.12.2.12,6.07,28.08,13.015,19.020,27.021,26]nonacosa-8,10,12,14,19,21,23,25,27-nonaen-16-one | IC50 | 5.6 nM | US-8822500: Tyrosine kinase inhibitors |
| CHEMBL5405221 | IC50 | 5.6 nM | |
| CHEMBL3969370 | EC50 | 5.8 nM | |
| CHEMBL5175418 | IC50 | 5.9 nM | |
| (2’S,3R)-2’-[3-[[(3R)-3-hydroxy-2,3-dihydro-1-benzofuran-7-yl]amino]-2,3,3a,4,5,6,7,7a-octahydro-1H-indazol-6-yl]-5-methoxyspiro[1H-indole-3,1’-cyclopropane]-2-one | IC50 | 5.97 nM | US-20230365537: POLO LIKE KINASE 4 INHIBITORS |
| CHEMBL6193379 | IC50 | 6 nM | |
| Staurosporine, 8 | IC50 | 6.5 nM | |
| CHEMBL5198607 | IC50 | 6.5 nM | |
| CHEMBL5200125 | IC50 | 7 nM | |
| CHEMBL5430526 | IC50 | 7 nM | |
| CHEMBL5185001 | IC50 | 7.3 nM | |
| CHEMBL5180759 | IC50 | 7.9 nM | |
| CHEMBL4465866 | KD | 8 nM | |
| CHEMBL4576489 | KD | 8 nM | |
| CHEMBL5434630 | IC50 | 8.1 nM | |
| CHEMBL5410922 | IC50 | 8.4 nM | |
| CHEMBL5433434 | IC50 | 8.6 nM | |
| CHEMBL5422161 | IC50 | 9.1 nM | |
| CHEMBL5430793 | IC50 | 9.4 nM | |
| CHEMBL5397330 | IC50 | 10 nM | |
| CHEMBL6189091 | IC50 | 10 nM |
ChEMBL bioactivities
911 potent at pChembl≥5 of 926 total, top 50 by pChembl (potency: 10 = 0.1 nM, 6 = 1 µM).
| pChembl | Type | Value | Unit | Molecule |
|---|---|---|---|---|
| 10.00 | Ki | 0.1 | nM | CHEMBL3408945 |
| 10.00 | IC50 | 0.1 | nM | CHEMBL5209160 |
| 9.80 | Ki | 0.16 | nM | CHEMBL5185225 |
| 9.70 | IC50 | 0.2 | nM | CHEMBL5185001 |
| 9.59 | Ki | 0.26 | nM | OCIFISERTIB |
| 9.52 | IC50 | 0.3 | nM | CHEMBL5171469 |
| 9.52 | IC50 | 0.3 | nM | CHEMBL5428085 |
| 9.52 | IC50 | 0.3 | nM | CHEMBL5404983 |
| 9.49 | IC50 | 0.32 | nM | CHEMBL2407898 |
| 9.43 | IC50 | 0.37 | nM | CHEMBL3353348 |
| 9.41 | IC50 | 0.39 | nM | CHEMBL3408955 |
| 9.40 | IC50 | 0.4 | nM | CHEMBL5439790 |
| 9.35 | IC50 | 0.45 | nM | CHEMBL2407894 |
| 9.35 | IC50 | 0.45 | nM | CHEMBL4553351 |
| 9.32 | IC50 | 0.48 | nM | CHEMBL2407748 |
| 9.23 | IC50 | 0.59 | nM | CHEMBL3353347 |
| 9.22 | IC50 | 0.6 | nM | CHEMBL3408944 |
| 9.22 | Ki | 0.6 | nM | CHEMBL5556344 |
| 9.21 | IC50 | 0.61 | nM | CHEMBL2407900 |
| 9.19 | IC50 | 0.64 | nM | CHEMBL3408954 |
| 9.16 | IC50 | 0.69 | nM | CHEMBL4516793 |
| 9.15 | IC50 | 0.71 | nM | CHEMBL3353351 |
| 9.15 | IC50 | 0.7 | nM | CHEMBL5171233 |
| 9.15 | IC50 | 0.7 | nM | CHEMBL5188129 |
| 9.15 | IC50 | 0.7 | nM | CHEMBL5183346 |
| 9.14 | Ki | 0.73 | nM | CHEMBL3408946 |
| 9.12 | IC50 | 0.75 | nM | CHEMBL3353341 |
| 9.12 | Kd | 0.75 | nM | STAUROSPORINE |
| 9.11 | Kd | 0.77 | nM | STAUROSPORINE |
| 9.10 | IC50 | 0.79 | nM | CHEMBL3353352 |
| 9.10 | IC50 | 0.8 | nM | CHEMBL5200865 |
| 9.09 | IC50 | 0.82 | nM | CHEMBL2407744 |
| 9.05 | IC50 | 0.9 | nM | CHEMBL2407895 |
| 9.05 | IC50 | 0.9 | nM | CHEMBL3408941 |
| 9.05 | IC50 | 0.9 | nM | CHEMBL3353361 |
| 9.05 | IC50 | 0.9 | nM | CHEMBL3353362 |
| 9.05 | IC50 | 0.9 | nM | CHEMBL3353355 |
| 9.05 | IC50 | 0.9 | nM | CHEMBL5402864 |
| 9.03 | IC50 | 0.94 | nM | CHEMBL4448596 |
| 9.03 | Kd | 0.93 | nM | TAE-684 |
| 9.00 | IC50 | 1 | nM | CHEMBL4516793 |
| 9.00 | IC50 | 1 | nM | CHEMBL5185324 |
| 9.00 | IC50 | 1 | nM | CHEMBL5420150 |
| 8.96 | IC50 | 1.1 | nM | CHEMBL3353348 |
| 8.96 | IC50 | 1.1 | nM | CHEMBL3353347 |
| 8.96 | IC50 | 1.1 | nM | CHEMBL3408956 |
| 8.96 | IC50 | 1.1 | nM | CHEMBL5194020 |
| 8.92 | IC50 | 1.2 | nM | CHEMBL3353350 |
| 8.92 | IC50 | 1.2 | nM | CHEMBL4440053 |
| 8.92 | IC50 | 1.2 | nM | CHEMBL4470693 |
PubChem BioAssay actives
588 with measured affinity, of 2161 total; 50 most potent distinct compounds. Largely complementary to BindingDB; screening values are coarse (µM, 4 dp), so sub-nM hits tie at the floor.
| Compound | Assay | Type | Value | Unit |
|---|---|---|---|---|
| 6-N-[(2,4-difluorophenyl)methyl]-4-N-(5-methyl-1H-pyrazol-3-yl)-1H-pyrazolo[5,4-d]pyrimidine-4,6-diamine | 1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assay | ic50 | 0.0001 | uM |
| (1R,2S)-5’-methoxy-1’-methyl-2-[3-[(E)-2-[4-(morpholin-4-ylmethyl)phenyl]ethenyl]-1H-indazol-6-yl]spiro[cyclopropane-1,3’-indole]-2’-one | 1198709: Competitive binding to PLK4 (unknown origin) by double reciprocal plot analysis in presence of ATP | ki | 0.0001 | uM |
| 6-N-[(2,4-difluorophenyl)methyl]-4-N-(5-methyl-1H-pyrazol-3-yl)-1-(oxan-4-yl)pyrazolo[3,4-d]pyrimidine-4,6-diamine | 1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assay | ic50 | 0.0002 | uM |
| 2-[2-fluoro-4-[(2-fluoro-3-nitrophenyl)methylsulfonyl]phenyl]sulfanyl-5-methoxy-N-(5-methyl-1H-pyrazol-3-yl)-6-morpholin-4-ylpyrimidin-4-amine | 2073833: Binding affinity to PLK4 (unknown origin) assessed as inhibition constant | ki | 0.0002 | uM |
| 3-[(E)-[3-[(E)-2-[4-[(dimethylamino)methyl]phenyl]ethenyl]indazol-6-ylidene]methyl]-5-methoxy-1H-indol-2-ol | 762246: Inhibition of N-terminal GST-tagged human PLK4 (1 to 391 amino acids) expressed in Escherichia coli using TMB as substrate after 30 mins by indirect ELISA assay | ic50 | 0.0003 | uM |
| 6-N-[(4-chlorophenyl)methyl]-4-N-(5-methyl-1H-pyrazol-3-yl)-1H-pyrazolo[5,4-d]pyrimidine-4,6-diamine | 1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assay | ic50 | 0.0003 | uM |
| 2-chloro-N-(2,5-difluorophenyl)-5-[[[4-[(5-methyl-1H-pyrazol-3-yl)amino]-1H-pyrazolo[5,4-d]pyrimidin-6-yl]amino]methyl]benzamide | 2027756: Inhibition of PLK4 (unknown origin) incubated for 1 hr by FRET assay | ic50 | 0.0003 | uM |
| 5-[[[1-(1-acetylpiperidin-4-yl)-4-[(5-methyl-1H-pyrazol-3-yl)amino]pyrazolo[3,4-d]pyrimidin-6-yl]amino]methyl]-2-chloro-N-(2,5-difluorophenyl)benzamide | 2027756: Inhibition of PLK4 (unknown origin) incubated for 1 hr by FRET assay | ic50 | 0.0003 | uM |
| (2’S,3R)-2’-[3-[(E)-2-[4-[[(2S,6R)-2,6-dimethylmorpholin-4-yl]methyl]phenyl]ethenyl]-1H-indazol-6-yl]-5-methoxyspiro[1H-indole-3,1’-cyclopropane]-2-one | 1198709: Competitive binding to PLK4 (unknown origin) by double reciprocal plot analysis in presence of ATP | ki | 0.0003 | uM |
| 5-methoxy-3-[(E)-[3-[(E)-2-pyridin-4-ylethenyl]indazol-6-ylidene]methyl]-1H-indol-2-ol | 762246: Inhibition of N-terminal GST-tagged human PLK4 (1 to 391 amino acids) expressed in Escherichia coli using TMB as substrate after 30 mins by indirect ELISA assay | ic50 | 0.0004 | uM |
| 2-chloro-N-(2,5-difluorophenyl)-5-[[[1-(1,1-dioxothian-4-yl)-4-[(5-methyl-1H-pyrazol-3-yl)amino]pyrazolo[3,4-d]pyrimidin-6-yl]amino]methyl]benzamide | 2027756: Inhibition of PLK4 (unknown origin) incubated for 1 hr by FRET assay | ic50 | 0.0004 | uM |
| (2’S,3R)-5-methoxy-2’-[3-[(E)-2-[4-[[(2S,6R)-2,4,6-trimethylpiperazin-1-yl]methyl]phenyl]ethenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one | 1198659: Inhibition of PLK4 (unknown origin) by ELISA | ic50 | 0.0004 | uM |
| (2’S,3R)-2’-[3-[(E)-2-[4-[(dimethylamino)methyl]phenyl]ethenyl]-1H-indazol-6-yl]-5-methoxyspiro[1H-indole-3,1’-cyclopropane]-2-one | 1198659: Inhibition of PLK4 (unknown origin) by ELISA | ic50 | 0.0004 | uM |
| (2’S,3R)-5-methoxy-2’-[3-(4-piperazin-1-ylphenyl)-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one | 1630306: Inhibition of PLK4 (unknown origin) | ic50 | 0.0004 | uM |
| 5-methoxy-3-[(E)-[3-[(E)-2-pyridin-3-ylethenyl]indazol-6-ylidene]methyl]-1H-indol-2-ol | 762246: Inhibition of N-terminal GST-tagged human PLK4 (1 to 391 amino acids) expressed in Escherichia coli using TMB as substrate after 30 mins by indirect ELISA assay | ic50 | 0.0005 | uM |
| 2-[2-fluoro-4-[(2-fluoro-3-nitrophenyl)methylsulfonyl]phenyl]sulfanyl-5-methoxy-N-(5-methyl-1H-pyrazol-3-yl)-6-piperidin-1-ylpyrimidin-4-amine | 2073833: Binding affinity to PLK4 (unknown origin) assessed as inhibition constant | ki | 0.0006 | uM |
| 5-methoxy-3-[(E)-[3-[(E)-2-[6-(4-methylpiperazin-1-yl)-3-pyridinyl]ethenyl]indazol-6-ylidene]methyl]-1H-indol-2-ol | 762246: Inhibition of N-terminal GST-tagged human PLK4 (1 to 391 amino acids) expressed in Escherichia coli using TMB as substrate after 30 mins by indirect ELISA assay | ic50 | 0.0006 | uM |
| (2’S,3R)-2’-[3-[(E)-2-[4-[[(3S,5R)-3,4,5-trimethylpiperazin-1-yl]methyl]phenyl]ethenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one | 1198659: Inhibition of PLK4 (unknown origin) by ELISA | ic50 | 0.0006 | uM |
| (2’S,3R)-2’-[3-[(E)-2-[4-[(dimethylamino)methyl]phenyl]ethenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one | 1198659: Inhibition of PLK4 (unknown origin) by ELISA | ic50 | 0.0006 | uM |
| (2’S,3R)-5-methoxy-2’-[3-[(E)-2-[4-(piperidin-1-ylmethyl)phenyl]ethenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one | 1198659: Inhibition of PLK4 (unknown origin) by ELISA | ic50 | 0.0006 | uM |
| 6-N-[(2-chlorophenyl)methyl]-4-N-(5-methyl-1H-pyrazol-3-yl)-1H-pyrazolo[5,4-d]pyrimidine-4,6-diamine | 1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assay | ic50 | 0.0007 | uM |
| 6-N-[(2,4-difluorophenyl)methyl]-4-N-(5-ethyl-1H-pyrazol-3-yl)-1-(oxan-4-yl)pyrazolo[3,4-d]pyrimidine-4,6-diamine | 1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assay | ic50 | 0.0007 | uM |
| 6-N-[(2,4-difluorophenyl)methyl]-4-N-(5-methyl-1H-pyrazol-3-yl)-1-piperidin-4-ylpyrazolo[3,4-d]pyrimidine-4,6-diamine | 1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assay | ic50 | 0.0007 | uM |
| (2’S,3R)-2’-[3-[(E)-2-[4-[[(2S,6R)-2,6-dimethylmorpholin-4-yl]methyl]phenyl]ethenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one | 1198709: Competitive binding to PLK4 (unknown origin) by double reciprocal plot analysis in presence of ATP | ki | 0.0007 | uM |
| (2’S,3R)-2’-[3-[(E)-2-[4-[(dimethylamino)methyl]phenyl]ethenyl]-1H-indazol-6-yl]-5-methylspiro[1H-indole-3,1’-cyclopropane]-2-one | 1178617: Inhibition of human N-terminal GST-tagged PLK4 (1 to 391 residues) expressed in Escherichia coli incubated for 30 mins by ELISA method | ic50 | 0.0007 | uM |
| (2’S,3R)-5-methoxy-2’-[3-[6-(4-methylpiperazin-1-yl)-3-pyridinyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one | 1630306: Inhibition of PLK4 (unknown origin) | ic50 | 0.0007 | uM |
| 4-[(E)-2-[(6E)-6-[(2-hydroxy-1H-indol-3-yl)methylidene]indazol-3-yl]ethenyl]benzoic acid | 762246: Inhibition of N-terminal GST-tagged human PLK4 (1 to 391 amino acids) expressed in Escherichia coli using TMB as substrate after 30 mins by indirect ELISA assay | ic50 | 0.0008 | uM |
| 6-N-[(4-fluorophenyl)methyl]-4-N-(5-methyl-1H-pyrazol-3-yl)-1H-pyrazolo[5,4-d]pyrimidine-4,6-diamine | 1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assay | ic50 | 0.0008 | uM |
| (2S,3R,4R,6R)-3-methoxy-2-methyl-4-(methylamino)-29-oxa-1,7,17-triazaoctacyclo[12.12.2.12,6.07,28.08,13.015,19.020,27.021,26]nonacosa-8,10,12,14,19,21,23,25,27-nonaen-16-one | 256607: Average Binding Constant for STK18; NA=Not Active at 10 uM | kd | 0.0008 | uM |
| (2’S,3R)-5-methoxy-2’-[3-[(E)-2-[6-(4-methylpiperazin-1-yl)-3-pyridinyl]ethenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one | 1198659: Inhibition of PLK4 (unknown origin) by ELISA | ic50 | 0.0008 | uM |
| (2’S,3R)-2’-[3-[(E)-2-[4-[(dimethylamino)methyl]phenyl]ethenyl]-1H-indazol-6-yl]-5-fluorospiro[1H-indole-3,1’-cyclopropane]-2-one | 1178617: Inhibition of human N-terminal GST-tagged PLK4 (1 to 391 residues) expressed in Escherichia coli incubated for 30 mins by ELISA method | ic50 | 0.0008 | uM |
| 3-[(E)-[3-[(E)-2-pyridin-4-ylethenyl]indazol-6-ylidene]methyl]-1H-indole-2,5-diol | 762246: Inhibition of N-terminal GST-tagged human PLK4 (1 to 391 amino acids) expressed in Escherichia coli using TMB as substrate after 30 mins by indirect ELISA assay | ic50 | 0.0009 | uM |
| 5-chloro-2-N-[2-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl]-4-N-(2-propan-2-ylsulfonylphenyl)pyrimidine-2,4-diamine | 625076: Binding constant for PLK4 kinase domain | kd | 0.0009 | uM |
| 2-chloro-N-(2,5-difluorophenyl)-5-[[[4-[(5-methyl-1H-pyrazol-3-yl)amino]-1-(oxan-4-yl)pyrazolo[3,4-d]pyrimidin-6-yl]amino]methyl]benzamide | 2027756: Inhibition of PLK4 (unknown origin) incubated for 1 hr by FRET assay | ic50 | 0.0009 | uM |
| (2’S,3R)-5-methoxy-2’-[3-[(E)-2-[4-(morpholin-4-ylmethyl)phenyl]ethenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one | 1198659: Inhibition of PLK4 (unknown origin) by ELISA | ic50 | 0.0009 | uM |
| (2’S,3R)-2’-[3-[(E)-2-(4-piperazin-1-ylphenyl)ethenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one | 1198659: Inhibition of PLK4 (unknown origin) by ELISA | ic50 | 0.0009 | uM |
| (2’S,3R)-2’-[3-[(E)-2-[4-(piperidin-1-ylmethyl)phenyl]ethenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one | 1198659: Inhibition of PLK4 (unknown origin) by ELISA | ic50 | 0.0009 | uM |
| (2’S,3R)-5-methoxy-2’-[3-[4-(4-methylpiperazin-1-yl)phenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one | 1630306: Inhibition of PLK4 (unknown origin) | ic50 | 0.0009 | uM |
| (2’S,3R)-2’-[3-[(E)-2-[4-(pyrrolidin-1-ylmethyl)phenyl]ethenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one | 1198659: Inhibition of PLK4 (unknown origin) by ELISA | ic50 | 0.0009 | uM |
| 6-N-[(2-fluorophenyl)methyl]-4-N-(5-methyl-1H-pyrazol-3-yl)-1H-pyrazolo[5,4-d]pyrimidine-4,6-diamine | 1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assay | ic50 | 0.0010 | uM |
| 2-chloro-N-(2,5-difluorophenyl)-5-[[[4-[(5-methyl-1H-pyrazol-3-yl)amino]-1-(1-methylsulfonylpiperidin-4-yl)pyrazolo[3,4-d]pyrimidin-6-yl]amino]methyl]benzamide | 2027756: Inhibition of PLK4 (unknown origin) incubated for 1 hr by FRET assay | ic50 | 0.0010 | uM |
| 6-N-[(2,4-difluorophenyl)methyl]-4-N-(5-methyl-1H-pyrazol-3-yl)-1-propan-2-ylpyrazolo[3,4-d]pyrimidine-4,6-diamine | 1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assay | ic50 | 0.0011 | uM |
| (2’S,3R)-2’-[3-[(E)-2-[4-(1-methylpiperidin-4-yl)oxyphenyl]ethenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one | 1198659: Inhibition of PLK4 (unknown origin) by ELISA | ic50 | 0.0011 | uM |
| 2-chloro-N-(2,5-difluorophenyl)-5-[[[1-methyl-4-[(5-methyl-1H-pyrazol-3-yl)amino]pyrazolo[3,4-d]pyrimidin-6-yl]amino]methyl]benzamide | 2027756: Inhibition of PLK4 (unknown origin) incubated for 1 hr by FRET assay | ic50 | 0.0012 | uM |
| (2’S,3R)-2’-[3-[4-[(3R,5S)-3,5-dimethylpiperazin-1-yl]phenyl]-1H-indazol-6-yl]-5-methoxyspiro[1H-indole-3,1’-cyclopropane]-2-one | 1630306: Inhibition of PLK4 (unknown origin) | ic50 | 0.0012 | uM |
| (2’S,3R)-2’-[3-[4-[4-(2-hydroxyethyl)piperazin-1-yl]phenyl]-1H-indazol-6-yl]-5-methoxyspiro[1H-indole-3,1’-cyclopropane]-2-one | 1630306: Inhibition of PLK4 (unknown origin) | ic50 | 0.0012 | uM |
| (2’S,3R)-5-chloro-2’-[3-[(E)-2-[4-[(dimethylamino)methyl]phenyl]ethenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one | 1178617: Inhibition of human N-terminal GST-tagged PLK4 (1 to 391 residues) expressed in Escherichia coli incubated for 30 mins by ELISA method | ic50 | 0.0012 | uM |
| (1R,2S)-1’-methyl-2-[3-[(E)-2-[6-(4-methylpiperazin-1-yl)-3-pyridinyl]ethenyl]-1H-indazol-6-yl]spiro[cyclopropane-1,3’-indole]-2’-one | 1198659: Inhibition of PLK4 (unknown origin) by ELISA | ic50 | 0.0013 | uM |
| 5-methyl-3-[(E)-[3-[(E)-2-pyridin-4-ylethenyl]indazol-6-ylidene]methyl]-1H-indol-2-ol | 762246: Inhibition of N-terminal GST-tagged human PLK4 (1 to 391 amino acids) expressed in Escherichia coli using TMB as substrate after 30 mins by indirect ELISA assay | ic50 | 0.0014 | uM |
| 3-[(E)-[3-[(E)-2-[6-(4-methylpiperazin-1-yl)-3-pyridinyl]ethenyl]indazol-6-ylidene]methyl]-1H-indol-2-ol | 762246: Inhibition of N-terminal GST-tagged human PLK4 (1 to 391 amino acids) expressed in Escherichia coli using TMB as substrate after 30 mins by indirect ELISA assay | ic50 | 0.0014 | uM |
CTD chemical–gene interactions
76 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| sodium arsenite | affects expression, decreases expression, affects cotreatment, increases abundance | 3 |
| Valproic Acid | decreases expression, affects expression | 3 |
| Cyclosporine | decreases expression | 3 |
| bisphenol A | decreases expression, increases expression | 2 |
| Resveratrol | affects cotreatment, increases expression | 2 |
| Acetaminophen | increases expression, decreases expression | 2 |
| Estradiol | increases expression | 2 |
| Tretinoin | decreases expression | 2 |
| Cadmium Chloride | affects binding, increases reaction, increases localization, decreases expression, increases expression | 2 |
| aristolochic acid I | decreases expression | 1 |
| 3-((6-(2-methoxyphenyl)pyrimidin-4-yl)amino)phenyl)methane sulfonamide | decreases expression | 1 |
| afuresertib | decreases expression | 1 |
| echimidine | decreases expression, increases metabolic processing | 1 |
| dicrotophos | decreases expression | 1 |
| diminazene aceturate | decreases expression | 1 |
| lasiocarpine | decreases expression, increases metabolic processing | 1 |
| triphenyl phosphate | affects expression | 1 |
| propionaldehyde | decreases expression | 1 |
| trichostatin A | affects expression | 1 |
| riddelliine | decreases expression, increases metabolic processing | 1 |
| tris(1,3-dichloro-2-propyl)phosphate | decreases expression | 1 |
| perfluorooctanoic acid | decreases expression | 1 |
| manganese chloride | affects cotreatment, decreases expression, increases abundance | 1 |
| 2,3-bis(3’-hydroxybenzyl)butyrolactone | affects cotreatment, increases expression | 1 |
| caffeic acid | increases expression, increases reaction | 1 |
| beta-methylcholine | affects expression | 1 |
| phenethyl isothiocyanate | decreases expression | 1 |
| tamibarotene | decreases expression | 1 |
| 4-methoxycinnamate methyl ester | increases expression, increases reaction | 1 |
| 2-palmitoylglycerol | increases expression | 1 |
ChEMBL screening assays
303 unique, capped per target: 293 binding, 10 functional
Representative assays (with source publication via chembl_document):
| Assay ID | Type | Description | Source paper |
|---|---|---|---|
| CHEMBL1004495 | Binding | Binding affinity to human recombinant PLK4 expressed in Escherichia coli assessed as thermal shift by differential scanning fluorimetry | Discovery of a potent and selective inhibitor for human carbonyl reductase 1 from propionate scanning applied to the macrolide zearalenone. — *Bioorg Med Chem* |
| CHEMBL1963705 | Functional | PUBCHEM_BIOASSAY: Navigating the Kinome. (Class of assay: other) Panel member name: PLK4 | PubChem BioAssay data set |
Clinical trials (associated diseases)
Via MONDO — disease-level, not drug-specific.
54 trials:
| NCT | Phase | Status | Title |
|---|---|---|---|
| NCT04224207 | Phase 3 | COMPLETED | Management of Retinitis Pigmentosa by Mesenchymal Stem Cells by Wharton’s Jelly Derived Mesenchymal Stem Cells |
| NCT07082855 | Phase 3 | NOT_YET_RECRUITING | A Multicenter, Randomized, Double-Blind, Controlled Clinical Study of Minocycline for the Treatment of Retinitis Pigmentosa |
| NCT03763227 | Phase 2 | COMPLETED | Intravitreal Ranibizumab (Lucentis®) in the Treatment of Non-leaking Macular Cysts in Retinal Dystrophy |
| NCT04068207 | Phase 2 | COMPLETED | Minocycline Treatment in Retinitis Pigmentosa |
| NCT04945772 | Phase 2 | COMPLETED | Efficacy and Safety of MCO-010 Optogenetic Therapy in Adults With Retinitis Pigmentosa [RESTORE] |
| NCT05902962 | Phase 1 | COMPLETED | SAD of IVT VP-001 in PRPF31 Mutation-Associated Retinal Dystrophy Subjects |
| NCT06319872 | Phase 1 | RECRUITING | The Effects of Disulfiram (Antabuse®) on Visual Acuity in Patients With Retinal Degeneration |
| NCT06455826 | Phase 1 | COMPLETED | MAD of IVT VP-001 in PRPF31 Mutation-Associated Retinal Dystrophy Subjects (Wallaby) |
| NCT04737460 | Phase 1 | ACTIVE_NOT_RECRUITING | Study for the Treatment for CLN7 Disease |
| NCT01064505 | Phase 1 | COMPLETED | Safety Study of a Single IVT Injection of QPI-1007 in Chronic Optic Nerve Atrophy and Recent Onset NAION Patients |
| NCT05147701 | Phase 1 | RECRUITING | Safety of Cultured Allogeneic Adult Umbilical Cord Derived Mesenchymal Stem Cells for NAION |
| NCT03139903 | Not specified | COMPLETED | The Primordial Dwarfisms: Diagnosis, Identification of the Molecular Basis of Seckel Syndrome and Microcephalic Osteodysplastic Primordial Dwarfism Type II |
| NCT04855045 | Phase 2/3 | UNKNOWN | An Open-label, Dose Escalation and Double-masked, Randomized, Controlled Trial Evaluating Safety and Tolerability of Sepofarsen in Children (<8 Years of Age) With LCA10 Caused by Mutations in the CEP290 Gene. |
| NCT03872479 | Phase 1/2 | UNKNOWN | Single Ascending Dose Study in Participants With LCA10 |
| NCT04123626 | Phase 1/2 | ACTIVE_NOT_RECRUITING | A Study to Evaluate the Safety and Tolerability of QR-1123 in Subjects With Autosomal Dominant Retinitis Pigmentosa Due to the P23H Mutation in the RHO Gene |
| NCT04545736 | Phase 1/2 | ACTIVE_NOT_RECRUITING | Oral Metformin for Treatment of ABCA4 Retinopathy |
| NCT06212297 | Phase 1/2 | ACTIVE_NOT_RECRUITING | Fellow-eye Study (FE) of LX101 in Subjects With Inherited Retinal Dystrophy |
| NCT06852963 | Phase 1/2 | ACTIVE_NOT_RECRUITING | A Repeat-Dose, Open-Label, Two Arm Safety and Efficacy Study of Two Doses of VP-001 Administered Intravitreally in Participants With Confirmed PRPF31 Mutation-Associated Retinal Dystrophy, Including Participants Previously Treated With VP001 |
| NCT07177196 | Phase 1/2 | ACTIVE_NOT_RECRUITING | Personalized Antisense Oligonucleotide Therapy for a Single Participant With PRPH2 Mutation Associated With Retinal Dystrophy |
| NCT07063030 | Early Phase 1 | RECRUITING | A Study of LX107 Gene Therapy in AIPL1-IRD Patients |
| NCT07656753 | Early Phase 1 | RECRUITING | Safety and Efficacy Study of PUMCH-E111 Injection in Subjects With RLBP1 Related Inherited Retinal Dystrophy |
| NCT01546181 | Not specified | COMPLETED | Retinal Imaging by Adaptive Optics in Healthy Eyes and During Retinal and General Diseases |
| NCT01876147 | Not specified | COMPLETED | Visual and Functional Assessment in Low Vision Patients |
| NCT01920867 | Not specified | UNKNOWN | Stem Cell Ophthalmology Treatment Study |
| NCT02014389 | Not specified | RECRUITING | Evaluation of Objective Perimetry Using Chromatic Multifocal Pupillometer |
| NCT02983305 | Not specified | COMPLETED | Optical Head-Mounted Display Technology for Low Vision Rehabilitation |
| NCT03592017 | Not specified | COMPLETED | Performance of Long-wavelength Autofluorescence Imaging |
| NCT03662386 | Not specified | TERMINATED | Prospective Analysis of Genotype-phenotype Correlations Observed in a Large Cohort of Patients With Hereditary Retinal Dystrophies - GEPHIRD |
| NCT03691168 | Not specified | UNKNOWN | Multi-center Observation of the Natural Course of Inherited Retinal Dystrophies |
| NCT03843840 | Not specified | COMPLETED | Dual Wavelength OCT |
| NCT03853252 | Not specified | COMPLETED | iPS Cells of Patients for Models of Retinal Dystrophies |
| NCT05130385 | Not specified | UNKNOWN | High Resolution Optical Coherence Tomography |
| NCT05294978 | Not specified | RECRUITING | EyeConic: Qualification for Cone-Optogenetics |
| NCT05573984 | Not specified | ACTIVE_NOT_RECRUITING | Natural History of PRPF31 Mutation-Associated Retinal Dystrophy |
| NCT05793515 | Not specified | COMPLETED | Mechanisms of Inherited Retinal Dystrophies Using Whole Genome Sequencing and in Vitro and in Vivo Models |
| NCT05820100 | Not specified | COMPLETED | Observational Study to Assess the Reliability and Validity of the MLYMT and MLSDT |
| NCT05976139 | Not specified | RECRUITING | Micropulsed Laser in Patients With Macular Oedema in Retinal Dystrophies |
| NCT06162585 | Not specified | ACTIVE_NOT_RECRUITING | Non-Interventional Long Term Follow-up Study of Participants Previously Enrolled in the RESTORE Study |
| NCT06177977 | Not specified | RECRUITING | SS-HH-OCT as a Novel Diagnostic Modality for Early-Onset Retinal Dystrophies (EORDs) |
| NCT06375239 | Not specified | RECRUITING | Observational Study to Assess Endpoint Operational Feasibility & Measurement Properties in Patients with Retinal Degeneration |
| NCT06908161 | Not specified | NOT_YET_RECRUITING | Functional Assessments in Vision Impairment |
| NCT07085533 | Not specified | RECRUITING | Natural History Study of Inherited Retinal Diseases |
| NCT07502664 | Not specified | RECRUITING | Development and Evaluation of Functional Visual Field and Navigation Endpoints in Moderate to Profound Inherited Retinal Disease (DEFINE-IRD) |
| NCT07529041 | Not specified | ENROLLING_BY_INVITATION | Real-time Acoustic Biofeedback for Enhancing Fixation Stability: A Proof-of-concept Study to Improve Ophthalmic Imaging Diagnostic Quality |
| NCT04613089 | Not specified | RECRUITING | Natural History and Longitudinal Clinical Assessments in NCL / Batten Disease, the International DEM-CHILD Database |
| NCT02882477 | Phase 2/3 | UNKNOWN | Treatment of Wolfram Syndrome Type 2 With the Chelator Deferiprone and Incretin Based Therapy |
| NCT01834079 | Phase 1/2 | UNKNOWN | Study the Safety and Efficacy of Bone Marrow Derived Autologous Cells for the Treatment of Optic Nerve Disease |
| NCT04680143 | Phase 1/2 | COMPLETED | Systemic Erythropoietin Injection in Patients Having Optic Atrophy |
| NCT03011541 | Not specified | RECRUITING | Stem Cell Ophthalmology Treatment Study II |
| NCT04580979 | Not specified | COMPLETED | Natural History Study of FDXR Mutation-related Mitochondriopathy |
| NCT04594590 | Not specified | COMPLETED | Natural History Study of SLC25A46 Mutation-related Mitochondriopathy |
| NCT04723160 | Not specified | COMPLETED | Computer Aided Diagnosis of Multiple Eye Fundus Diseases From Color Fundus Photograph |
| NCT06390579 | Not specified | COMPLETED | Building Research With Artificial Intelligence in Neuro-Ophthalmology |
| NCT06566066 | Not specified | RECRUITING | Register for Patients With Thyroid Hormone Resistance. |
Predicted chemistry — Sugi Predict
The predicted patent-compound landscape for PLK4 across ~30M SureChEMBL compounds — explore on Sugi Predict.
Related Atlas pages
- Associated diseases: microcephaly and chorioretinopathy 2, microcephaly and chorioretinopathy 1, Seckel syndrome
- Targeted by drugs: Axitinib
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): inherited retinal dystrophy, microcephaly, microcephaly and chorioretinopathy 1, microcephaly and chorioretinopathy 2, neuronal ceroid lipofuscinosis 7, optic atrophy, Seckel syndrome