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PLK4

gene
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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

FieldValue
HGNC IDHGNC:11397
Approved symbolPLK4
Namepolo like kinase 4
Location4q28.1
Locus typegene with protein product
StatusApproved
AliasesSak
Ensembl geneENSG00000142731
Ensembl biotypeprotein_coding
OMIM605031
Entrez10733

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

ExonStartEnd
ENSE00000956077127883262127883357
ENSE00000956078127883439127883553
ENSE00000956079127885708127886728
ENSE00000956080127887396127887496
ENSE00000956082127891092127891196
ENSE00000956084127892365127892514
ENSE00000956085127893285127893418
ENSE00001280184127898439127899224
ENSE00002068636127880893127881164
ENSE00003483918127893734127893881
ENSE00003518610127893513127893604
ENSE00003599372127891579127891681
ENSE00003608012127896801127896907
ENSE00003630062127894953127895093
ENSE00003656252127881831127881926
ENSE00003668667127889866127890236

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:

TissueQTLq-valueSlopeLead variant
Skin Sun Exposed Lower legeqtl2.1e-02+0.304:128212726:A:G
Cells Cultured fibroblastseqtl3.2e-02-0.244:128319446:T:C
Adipose Subcutaneouseqtl3.3e-02-0.454:127346417:G:A
Stomacheqtl3.7e-02-0.684:127020984:G:A
Esophagus Mucosaeqtl3.9e-02+0.174:127153054:A:C

FANTOM5 promoters

2 alternative TSS:

Promoter IDTPM avgSamples expressed
496076.65631304
496080.113152

Top tissues by expression

showing 100 of 288 tissues by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
ventricular zoneUBERON:000305396.71gold quality
ganglionic eminenceUBERON:000402391.66gold quality
primordial germ cell in gonadCL:0000670 ∩ UBERON:000099189.42gold quality
spermCL:000001989.32gold quality
male germ line stem cell (sensu Vertebrata) in testisCL:0000089 ∩ UBERON:000047388.79gold quality
embryoUBERON:000092287.51gold quality
male germ cellCL:000001587.05gold quality
left testisUBERON:000453386.99gold quality
testisUBERON:000047386.83gold quality
right testisUBERON:000453486.45gold quality
bone marrowUBERON:000237184.39gold quality
bone marrow cellCL:000209282.73gold quality
rectumUBERON:000105282.34gold quality
endometrium epitheliumUBERON:000481180.11gold quality
vermiform appendixUBERON:000115478.29gold quality
mucosa of transverse colonUBERON:000499178.14gold quality
stromal cell of endometriumCL:000225577.98gold quality
lower esophagus mucosaUBERON:003583477.35gold quality
esophagus mucosaUBERON:000246977.17gold quality
adrenal tissueUBERON:001830376.76gold quality
cortical plateUBERON:000534375.89gold quality
trabecular bone tissueUBERON:000248375.79gold quality
secondary oocyteCL:000065575.59gold quality
lymph nodeUBERON:000002975.44gold quality
skin of abdomenUBERON:000141672.91gold quality
endometriumUBERON:000129572.65gold quality
pancreatic ductal cellCL:000207972.08silver quality
skin of legUBERON:000151172.01gold quality
caecumUBERON:000115371.75gold quality
diaphragmUBERON:000110371.45gold quality
smooth muscle tissueUBERON:000113570.85gold quality
transverse colonUBERON:000115770.58gold quality
zone of skinUBERON:000001470.29gold quality
cartilage tissueUBERON:000241870.29gold quality
epithelium of esophagusUBERON:000197669.98silver quality
esophagus squamous epitheliumUBERON:000692069.91silver quality
vaginaUBERON:000099669.54gold quality
small intestine Peyer’s patchUBERON:000345469.47gold quality
olfactory segment of nasal mucosaUBERON:000538669.23gold quality
esophagusUBERON:000104368.83gold quality
monocyteCL:000057668.60gold quality
small intestineUBERON:000210868.57gold quality
amniotic fluidUBERON:000017368.50gold quality
leukocyteCL:000073868.47gold quality
thymusUBERON:000237068.42gold quality
mononuclear cellCL:000084268.29gold quality
colonic epitheliumUBERON:000039768.26silver quality
spleenUBERON:000210668.06gold quality
adult organismUBERON:000702368.05gold quality
oral cavityUBERON:000016767.94silver quality
granulocyteCL:000009467.71gold quality
duodenumUBERON:000211467.64gold quality
intestineUBERON:000016067.61gold quality
right adrenal glandUBERON:000123367.51gold quality
right adrenal gland cortexUBERON:003582767.34gold quality
gall bladderUBERON:000211067.16gold quality
large intestineUBERON:000005966.83gold quality
colonic mucosaUBERON:000031766.65gold quality
colonUBERON:000115566.65gold quality
mucosa of sigmoid colonUBERON:000499366.63gold quality
epithelium of nasopharynxUBERON:000195166.48silver quality
tonsilUBERON:000237266.46gold quality
calcaneal tendonUBERON:000370166.37gold quality
islet of LangerhansUBERON:000000666.25gold quality
oviduct epitheliumUBERON:000480466.01silver quality
placentaUBERON:000198765.94gold quality
female reproductive systemUBERON:000047465.84gold quality
bronchial epithelial cellCL:000232865.74gold quality
ovaryUBERON:000099265.66gold quality
left adrenal glandUBERON:000123465.50gold quality
prefrontal cortexUBERON:000045165.39gold quality
left adrenal gland cortexUBERON:003582565.39gold quality
metanephros cortexUBERON:001053365.36gold quality
ileal mucosaUBERON:000033165.25silver quality
minor salivary glandUBERON:000183065.08gold quality
uterusUBERON:000099564.90gold quality
adrenal glandUBERON:000236964.90gold quality
squamous epitheliumUBERON:000691464.64silver quality
upper leg skinUBERON:000426264.52gold quality
body of stomachUBERON:000116164.41gold quality
buccal mucosa cellCL:000233664.40silver quality
stomachUBERON:000094564.20gold quality
upper lobe of left lungUBERON:000895264.14gold quality
mouth mucosaUBERON:000372964.12gold quality
adrenal cortexUBERON:000123564.02gold quality
left ovaryUBERON:000211964.01gold quality
right ovaryUBERON:000211863.99gold quality
upper lobe of lungUBERON:000894863.82gold quality
jejunal mucosaUBERON:000039963.53silver quality
subcutaneous adipose tissueUBERON:000219063.51gold quality
fallopian tubeUBERON:000388963.50gold quality
descending thoracic aortaUBERON:000234563.49gold quality
epithelium of bronchusUBERON:000203163.39silver quality
body of uterusUBERON:000985363.27gold quality
ectocervixUBERON:001224962.96gold quality
tibial nerveUBERON:000132362.95gold quality
bronchusUBERON:000218562.57silver quality
omental fat padUBERON:001041462.56gold quality
peritoneumUBERON:000235862.50gold quality
pancreasUBERON:000126462.31gold quality

Single-cell (SCXA)

Detected in 1 experiment(s), a significant marker in 1.

ExperimentMarker?Max mean expression
E-ANND-3yes5.19

HPA expression

RNA tissue specificity: Group enriched

showing 60 of 77 HPA tissues / cells by nTPM:

Tissue / cellAxisnTPMProtein (IHC)
Bone marrowtissue21.3medium
Testistissue21.2high
Thymustissue13.4
Lymph nodetissue6.9medium
Tonsiltissue6.9medium
Appendixtissue4.6medium
Rectumtissue4.0medium
Colontissue3.3medium
Placentatissue3.3medium
Frontal cortextissue3.1
Caudate putamentissue3.1
Esophagustissue2.8low
Small intestinetissue2.7medium
Duodenumtissue2.7medium
Cerebral cortextissue2.5low
Putamentissue2.5
Occipital cortextissue2.5
Somatosensory cortextissue2.4
Basal gangliatissue2.3not detected
Amygdalatissue2.3
Skin 1tissue2.2low
Motor cortextissue2.2
Hippocampal formationtissue2.2
Ventral forebraintissue2.2
Retrosplenial and cingulate cortextissue2.2
Retrosplenial cortextissue2.2
Temporal cortextissue2.2
Insular cortextissue2.2
Prefrontal cortextissue2.1
Entorhinal cortextissue2.1
Septumtissue2.1
Hypothalamustissue2.0
Olfactory bulbtissue2.0
Breasttissue1.9not detected
Stomach 1tissue1.9medium
Retinatissue1.9
Periaqueductal graytissue1.9
Midbraintissue1.8
Thalamustissue1.8
Cerebellumtissue1.8not detected
Ponstissue1.7
Smooth muscletissue1.7not detected
Corpus callosumtissue1.7
Superior colliculitissue1.5
Substantia nigratissue1.5
Spleentissue1.5medium
Ovarytissue1.4medium
Endometrium 1tissue1.4medium
Vaginatissue1.3medium
Urinary bladdertissue1.3not detected
Nucleus accumbenstissue1.3
Medulla oblongatatissue1.3
Spinal cordtissue1.3
Fallopian tubetissue1.3medium
Postcentral gyrustissue1.1
Gallbladdertissue1.0medium
Locus coeruleustissue1.0
Adrenal glandtissue1.0not detected
Adipose tissuetissue0.9not detected
Lungtissue0.9medium

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:

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-3163100.0077.238605
HSA-MIR-3646100.0073.565283
HSA-MIR-548AW99.9972.573559
HSA-MIR-366299.9973.825684
HSA-MIR-428299.9975.366408
HSA-MIR-4789-3P99.9970.752484
HSA-MIR-548C-3P99.9974.017587
HSA-MIR-480399.9871.993117
HSA-MIR-1213699.9872.815713
HSA-MIR-520D-5P99.9873.344883
HSA-MIR-524-5P99.9873.434882
HSA-MIR-3065-5P99.9771.563281
HSA-MIR-302C-5P99.9772.563642
HSA-MIR-1468-3P99.9672.743797
HSA-MIR-6835-3P99.9370.492904
HSA-MIR-450B-5P99.9271.483175
HSA-MIR-7-1-3P99.9171.534384
HSA-MIR-7-2-3P99.9171.404394
HSA-MIR-548E-5P99.8972.734486
HSA-MIR-6885-3P99.7570.363187
HSA-MIR-4699-3P99.7170.153142
HSA-MIR-518A-5P99.7069.012209
HSA-MIR-52799.7069.012209
HSA-MIR-5580-3P99.7069.412052
HSA-MIR-453099.6966.471509
HSA-MIR-472999.6972.184233
HSA-MIR-46699.6770.852863
HSA-MIR-7156-5P99.6468.811369
HSA-MIR-570099.6469.882280
HSA-MIR-3942-3P99.5769.032854

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 / expo/eConstrained
4:127,881,135–127,886,037199 / 270.10.74no
4:127,886,038–127,893,526680 / 660.31.03no
4:127,893,527–127,898,489167 / 200.70.83no
4:127,898,490–127,898,5388 / 19.90.40no
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

OrganismSymbolGene ID
danio_rerioplk4ENSDARG00000004576
mus_musculusPlk4ENSMUSG00000025758
rattus_norvegicusPlk4ENSRNOG00000011654
drosophila_melanogasterSAKFBGN0026371

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 testis1
abnormal apoptosis1
decreased embryo size1
embryonic growth arrest1
increased circulating follicle stimulating hormone level1
abnormal neural tube morphology1
abnormal mitosis1
decreased testis weight1
decreased male germ cell number1
absent somites1
embryonic lethality, complete penetrance1
embryonic lethality between implantation and somite formation, complete penetrance1

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.

OrganismUniProtIdentityMethod
Drosophila persimilisB4HBU399.9%Diamond
Drosophila pseudoobscura pseudoobscuraQ2LYK399.9%Diamond
Pongo abeliiQ5R4L199.9%Diamond
Saccharomyces cerevisiae YJM789A6ZQG799.2%Diamond
Saccharomyces cerevisiae S288CP3897099.2%Diamond
Drosophila sechelliaB4IAQ899.0%Diamond
Drosophila simulansB4QK5399.0%Diamond
Xenopus tropicalisP6220596.5%Diamond
Xenopus laevisP7003296.5%Diamond
Drosophila erectaB3NE9996.1%Diamond
Drosophila yakubaB4PDM596.1%Diamond
Bos taurusQ2TA2595.7%Diamond
Sus scrofaQ9N0X094.8%Diamond
Arabidopsis thalianaQ683C993.9%Diamond
Canis lupus familiarisA0A8I3S72489.4%Diamond
Drosophila virilisB4LDJ685.6%Diamond
Drosophila mojavensisB4KYX885.4%Diamond
Drosophila grimshawiB4J3F183.3%Diamond
Drosophila ananassaeB3M6I482.9%Diamond
Gallus gallusQ5ZJH678.4%Diamond
Patiria pectiniferaD7UQM576.4%Diamond
Culex quinquefasciatusB0WAU874.0%Diamond
Aedes aegyptiQ16W2474.0%Diamond
Caenorhabditis elegansP3433172.1%Diamond
Oryza sativa Japonica GroupQ60DG471.6%Diamond
Drosophila willistoniB4MXR869.6%Diamond
Kluyveromyces lactis NRRL Y-1140Q6CWQ468.2%Diamond
Eremothecium gossypii ATCC 10895Q755C462.6%Diamond
Schizosaccharomyces pombe 972h-O5979062.3%Diamond
Nakaseomyces glabratus CBS 138Q6FV0762.1%Diamond
Dictyostelium discoideumQ54WX460.7%Diamond
Debaryomyces hansenii CBS767Q6BVA060.6%Diamond
Yarrowia lipolytica CLIB122Q6C3J260.2%Diamond
Candida albicans SC5314Q59S6659.0%Diamond
Caenorhabditis briggsaeQ621J757.5%Diamond
Encephalitozoon cuniculi GB-M1Q8SRL551.4%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).

SymbolTypeEntrez
PGRMC2protein-coding10424
MFSD8protein-coding256471
LARP1Bprotein-coding55132
ABHD18protein-coding80167
HSPA4Lprotein-coding22824
INTUprotein-coding27152
SLC25A31protein-coding83447
LINC02615ncRNA100507487

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 IDNamesCanonical?
O00444-11yes
O00444-22
O00444-33

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)

IDNameType
IPR000719Prot_kinase_domDomain
IPR000959POLO_box_domDomain
IPR008266Tyr_kinase_ASActive_site
IPR011009Kinase-like_dom_sfHomologous_superfamily
IPR017441Protein_kinase_ATP_BSBinding_site
IPR033696POLO_box_Plk4_CDomain
IPR033698POLO_box_Plk4_2Domain
IPR033699POLO_box_Plk4_1Domain
IPR046437Ser_Thr-PK_POLO_box_1_sfHomologous_superfamily
IPR047108Plk4-like_POLO_box_2_sfHomologous_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.

SubstrateKm (mM)Measurements
ATP0.0002–0.007613
CDC25C0.0006–0.00086
CASEIN0.00141

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:

PDBTitleMethodResolution (Å)
9Y9NPLK4 in complex with Compound 25 …X-RAY DIFFRACTION1.81
3COKCrystal structure of PLK4 kinaseX-RAY DIFFRACTION2.25
9O63Crystal structure of PLK4 and RP1664 complexX-RAY DIFFRACTION2.26
4JXFCrystal Structure of PLK4 Kinase with an inhibitor: 400631 …X-RAY DIFFRACTION2.4
5LHZPB3 Domain of Human PLK4 in Complex with Coiled-Coil Domain of STILX-RAY DIFFRACTION2.51
4YYPCrystal structure of human PLK4-PB3 in complex with STIL-CCX-RAY DIFFRACTION2.6
4N9JCrystal structure of the cryptic polo box domain of human Plk4X-RAY DIFFRACTION2.6
6N45Crystal structure of the cryptic polo box domain of human activated Plk4 variant 1X-RAY DIFFRACTION2.64
4YURCrystal Structure of Plk4 Kinase Domain Bound to CentrinoneX-RAY DIFFRACTION2.65
8XPGThe Crystal Structure of polo box domain of Plk4 from Biortus.X-RAY DIFFRACTION2.7
9Y9BPLK4 in complex with Compound 6 …X-RAY DIFFRACTION2.7
4N7VCrystal structure of human Plk4 cryptic polo box (CPB) in complex with a Cep152 …X-RAY DIFFRACTION2.76
4N7ZCrystal structure of human Plk4 cryptic polo box (CPB) in complex with a Cep192 …X-RAY DIFFRACTION2.85
5LHYPB3 Domain of Human PLK4 (apo)X-RAY DIFFRACTION3.31
6N46Crystal structure of the cryptic polo box domain of a human activated Plk4X-RAY DIFFRACTION3.71
6W3ICrystal structure of a FAM46C mutant in complex with Plk4X-RAY DIFFRACTION3.8
6W3JCrystal structure of the FAM46C/Plk4/Cep192 complexX-RAY DIFFRACTION4.38
6W38Crystal structure of the FAM46C/Plk4 complexX-RAY DIFFRACTION4.48
2N19STIL binding to the Polo-box domain 3 of PLK4 regulates centriole duplicationSOLUTION NMR

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-O00444-F166.310.37

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)

PositionRole
136proton acceptor

Ligand- & substrate-binding residues (2)

PositionRole
18–26ATP
41ATP

Post-translational modifications (5)

TypePositions
N6-acetyllysine45, 46
Phosphoserine401, 665, 817

Mutagenesis-validated functional residues (9)

PositionPhenotype
13does not affect interaction with ubp54.
41abolishes ability to phosphorylate cdc25c and chek2.
151does not affect interaction with ubp54.
154catalytically inactive mutant that causes some centrosome amplification above background levels when overexpressed.
162abolishes interaction with ubp54.
167does not affect interaction with ubp54.
170activating mutant.
669does not affect the interaction with tent5c.
670decreases 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:

IDPathwayEvidence
R-HSA-8854518AURKA Activation by TPX2curated
R-HSA-5620912Anchoring of the basal body to the plasma membranecurated
R-HSA-380259Loss of Nlp from mitotic centrosomescurated
R-HSA-380284Loss of proteins required for interphase microtubule organization from the centrosomecurated
R-HSA-380320Recruitment of NuMA to mitotic centrosomescurated
R-HSA-380270Recruitment of mitotic centrosome proteins and complexescurated
R-HSA-2565942Regulation of PLK1 Activity at G2/M Transitioncurated
R-HSA-1640170Cell Cycle—
R-HSA-69278Cell Cycle, Mitotic—
R-HSA-380287Centrosome maturation—
R-HSA-5617833Cilium Assembly—
R-HSA-69275G2/M Transition—
R-HSA-68886M Phase—
R-HSA-453274Mitotic G2-G2/M phases—
R-HSA-68877Mitotic Prometaphase—
R-HSA-1852241Organelle 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:

CategoryPathways
G2/M Transition3
Centrosome maturation2
Cell Cycle, Mitotic2
Loss of proteins required for interphase microtubule organization from the centrosome1
Mitotic Prometaphase1
Assembly of the 9+0 primary cilium1
Organelle biogenesis and maintenance1
M Phase1
Mitotic G2-G2/M phases1
Cell Cycle1

GO top-level categories

46 GO namespaces:

CategoryTerms
intracellular membraneless organelle3
cell cycle process2
protein kinase activity2
microtubule organizing center2
cytoplasm2
cellular anatomical structure2
phosphorylation1
protein modification process1
centrosome duplication1
centriole assembly1
centriole replication1
regulation of centriole replication1
positive regulation of cytoskeleton organization1
positive regulation of cell cycle process1
positive regulation of organelle assembly1
axoneme assembly1
intraciliary transport involved in cilium assembly1
cilium organization1
protein localization to cilium1
organelle assembly1
trans-Golgi to periciliary membrane compartment transport1
plasma membrane bounded cell projection assembly1
ciliary transition zone assembly1
cell differentiation involved in embryonic placenta development1
de novo centriole assembly1
multi-ciliated epithelial cell differentiation1
regulation of cell cycle1
adenyl ribonucleotide binding1
purine ribonucleoside triphosphate binding1
anion binding1
protein binding1
nucleoside phosphate binding1
heterocyclic compound binding1
kinase activity1
phosphotransferase activity, alcohol group as acceptor1
catalytic activity, acting on a protein1
binding1
transferase activity, transferring phosphorus-containing groups1
catalytic activity1
sex chromosome1
condensed chromatin of inactivated sex chromosome1
intracellular membrane-bounded organelle1
nuclear lumen1
centriole1
cell division site1
plasma membrane region1

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 termNSEvidence
centriole replicationBPdirect assay
cilium assemblyBPmutant phenotype
positive regulation of centriole replicationBPdirect assay
protein phosphorylationBPdirect assay
centrioleCCdirect assay
centrosomeCCdirect assay
procentrioleCCdirect assay
identical protein bindingMFphysical interaction
protein serine/threonine kinase activityMFdirect assay

Protein interactions and networks

STRING

showing 15 of 2,169 interactions by confidence (×1000):

Protein AProtein BPartner UniProtScore
PLK4SASS6Q6UVJ0984
PLK4CPAPQ9HC77966
PLK4CEP135Q66GS9964
PLK4CCP110O43303952
PLK4CEP152O94986938
PLK4TUBG1P23258840
PLK4CNTLNQ9NXG0835
PLK4STILQ15468834
PLK4CETN2P41208815
PLK4CEP63Q96MT8813
PLK4CEP192Q8TEP8808
PLK4PCNTO95613790
PLK4PLK5Q496M5741
PLK4BUB1BO60566705
PLK4CEP295Q9C0D2696

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:

PartnerInteraction typeMIscoreRecords
CEP152physical association0.85020
ELOAphysical association0.7206
CEP192direct interaction0.70013
BTRCphysical association0.6804
STILcolocalization0.6609
SFNphysical association0.6503
ECT2physical association0.6003
AIRIMphysical association0.5603
ARR3physical association0.5603
DNAJB13physical association0.5603
DUN1physical association0.5603
GAS8physical association0.5603
OSBPL3physical association0.5603
P4HBphysical association0.5603
RSM26physical association0.5603
SKI8physical association0.5603
SPAG5physical association0.5603
TENT5Bphysical association0.5603
TFIP11physical association0.5603
TRIM54physical association0.5603
YPK2physical association0.5603
ZBTB39physical association0.5603
YWHAEphysical association0.5602
YWHAHphysical association0.5601
CPAPphosphorylation reaction0.4401
CCDC85Cphysical association0.4002
DUSP23physical association0.4001
CEP76physical association0.3701
CHD3physical association0.3701
MAD1L1physical association0.3701

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:

AEffectBMechanism
PLK4up-regulatesPLK4phosphorylation
PLK4up-regulatesCENPJphosphorylation
PLK4“up-regulates activity”PCM1phosphorylation
PLK4“up-regulates quantity”CDC25Cphosphorylation
PLK4“up-regulates activity”CEP131phosphorylation
PLK4“up-regulates activity”TUBGCP6phosphorylation
PLK4“up-regulates activity”NEDD1phosphorylation
PLK4“down-regulates activity”FBXW5phosphorylation

Protein complexes (CORUM) (2)

Experimentally-characterized complexes this protein is a subunit of (★ = the complex contains a known drug target).

2 complexes by size:

ComplexSubunitsMembers
PLK4-TENT5C complex2PLK4, TENT5C
PLK4-STIL complex2PLK4, 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:

PathwayPartnersFoldFDR
Loss of Nlp from mitotic centrosomes647.6×9e-08
Loss of proteins required for interphase microtubule organization from the centrosome647.6×9e-08
AURKA Activation by TPX2645.7×9e-08
Regulation of PLK1 Activity at G2/M Transition744.4×2e-08
Recruitment of mitotic centrosome proteins and complexes640.8×2e-07
Recruitment of NuMA to mitotic centrosomes635.0×3e-07
Anchoring of the basal body to the plasma membrane633.9×3e-07
Mitotic Prometaphase517.3×9e-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):

ClassificationCount (floor)
Pathogenic21
Likely pathogenic13
Uncertain significance355
Likely benign254
Benign22

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 IDHGVSClassificationReviewSubmitters
1495735NM_014264.5(PLK4):c.1358+1G>CLikely pathogeniccriteria provided, multiple submitters, no conflicts2
960158NM_014264.5(PLK4):c.37A>T (p.Lys13Ter)Pathogeniccriteria provided, single submitter1
1021501NM_014264.5(PLK4):c.1679del (p.Cys560fs)Pathogeniccriteria provided, single submitter1
1075626NM_014264.5(PLK4):c.60del (p.Gly21fs)Pathogeniccriteria provided, single submitter1
1452199NM_014264.5(PLK4):c.1201del (p.Ser401fs)Pathogeniccriteria provided, single submitter1
1455498NM_014264.5(PLK4):c.319_331del (p.Pro107fs)Pathogeniccriteria provided, single submitter1
1457246NM_014264.5(PLK4):c.168_169del (p.Arg56fs)Pathogeniccriteria provided, single submitter1
1458419NM_014264.5(PLK4):c.62del (p.Gly21fs)Pathogeniccriteria provided, single submitter1
1952871NM_014264.5(PLK4):c.799C>T (p.Arg267Ter)Pathogeniccriteria provided, single submitter1
1976021NM_014264.5(PLK4):c.1567_1568insTTGT (p.Lys523fs)Pathogeniccriteria provided, single submitter1
2028466NM_014264.5(PLK4):c.419_420del (p.Leu139_Ser140insTer)Pathogeniccriteria provided, single submitter1
2095296NM_014264.5(PLK4):c.644_645del (p.Thr215fs)Pathogeniccriteria provided, single submitter1
2098334NM_014264.5(PLK4):c.2701C>T (p.Gln901Ter)Pathogeniccriteria provided, single submitter1
2106876NM_014264.5(PLK4):c.1796T>G (p.Leu599Ter)Pathogeniccriteria provided, single submitter1
2788633NM_014264.5(PLK4):c.1261_1264del (p.Ser421fs)Pathogeniccriteria provided, single submitter1

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)EffectΔscoreSites
4:127881927–127881928donor_loss1.00005
4:127883554–127883555donor_loss1.00005
4:127885696acceptor_gain1.0000
4:127887497–127887498donor_loss1.00005
4:127891091acceptor_gain1.0000
4:127891197–127891198donor_loss1.00006
4:127892448acceptor_gain1.0000
4:127894948acceptor_gain1.0000
4:127881165–127881166donor_loss0.99005
4:127881829acceptor_gain0.9900

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:

ResidueLikely-pathogenic substitutionsMean am_pathogenicityMax am_pathogenicity
M4890.9300.996
M4290.9120.984
M5390.9000.990
D15481.0001.000
D13680.9981.000
D19380.9970.999
F15580.9920.999
F21180.9910.999
H13480.9900.998
F2380.9891.000
N14180.9850.998
F7980.9830.999
D8180.9770.998
H12880.9670.993
D4480.9580.994
F69280.9560.996
F1280.9551.000
F91180.9490.998
F26480.9410.996
H6980.9380.994

HPA cancer prognostics

RNA cancer specificity: Low cancer specificity

Human Protein Atlas survival analysis — favorable = higher expression predicts better survival.

6 prognostic cancer types:

CancerPrognosticp-value
Kidney Chromophobe (TCGA)unfavorable1.32e-05
Liver Hepatocellular Carcinoma (TCGA)unfavorable4.39e-05
Lung Adenocarcinoma (TCGA)unfavorable9.07e-05
Liver Hepatocellular Carcinoma (validation)unfavorable0.00011
Lung Adenocarcinoma (validation)unfavorable0.000377
Pancreatic Adenocarcinoma (validation)unfavorable0.000631

Disease associations

OMIM: gene MIM:605031 | disease phenotypes: MIM:616171

GenCC curated gene-disease

3 curated gene-disease records:

DiseaseClassificationInheritanceRecords
microcephaly and chorioretinopathy 2DefinitiveAutosomal recessive4
microcephaly and chorioretinopathy 1SupportiveAutosomal recessive
Seckel syndromeSupportiveAutosomal 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:

PanelRating
DDG2Pgreen
Fetal anomaliesgreen
Hypotonic infantgreen
Intellectual disabilitygreen
Leukodystrophy, childhood onsetgreen
Monogenic short staturegreen
Paediatric disordersgreen
Retinal disordersgreen
Severe microcephalygreen
Anophthalmia or microphthalmiaamber
Structural eye diseaseamber

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):

HPOTerm
HP:0000007Autosomal recessive inheritance
HP:0000252Microcephaly
HP:0000275Narrow face
HP:0000307Pointed chin
HP:0000340Sloping forehead
HP:0000347Micrognathia
HP:0000363Abnormal earlobe morphology
HP:0000387Absent earlobe
HP:0000411Protruding ear
HP:0000431Wide nasal bridge
HP:0000444Convex nasal ridge
HP:0000448Prominent nose
HP:0000463Anteverted nares
HP:0000482Microcornea
HP:0000486Strabismus
HP:0000488Retinopathy
HP:0000494Downslanted palpebral fissures
HP:0000499Abnormal eyelash morphology
HP:0000501Glaucoma
HP:0000505Visual impairment
HP:0000518Cataract
HP:0000520Proptosis
HP:0000543Optic disc pallor
HP:0000568Microphthalmia
HP:0000639Nystagmus
HP:0000648Optic atrophy
HP:0000682Abnormal dental enamel morphology
HP:0001249Intellectual disability
HP:0001250Seizure
HP:0001263Global developmental delay
HP:0001272Cerebellar atrophy
HP:0001276Hypertonia
HP:0001321Cerebellar hypoplasia
HP:0001338Partial agenesis of the corpus callosum
HP:0001344Absent speech
HP:0001363Craniosynostosis
HP:0001382Joint hypermobility
HP:0001385Hip dysplasia
HP:0001511Intrauterine growth retardation
HP:0001762Talipes equinovarus
HP:0001852Sandal gap
HP:0002059Cerebral atrophy
HP:0002120Cerebral cortical atrophy
HP:0002209Sparse scalp hair
HP:0002269Abnormality of neuronal migration
HP:0002650Scoliosis
HP:0002750Delayed skeletal maturation
HP:0002943Thoracic scoliosis
HP:0003577Congenital onset
HP:0004209Clinodactyly of the 5th finger
HP:0004322Short stature
HP:0004326Cachexia
HP:0004422Biparietal narrowing
HP:0004626Lumbar scoliosis
HP:0007165Periventricular heterotopia
HP:0007360Aplasia/Hypoplasia of the cerebellum
HP:0007401Macular atrophy
HP:0007495Prematurely aged appearance
HP:0007703Abnormal retinal pigmentation
HP:0009804Tooth 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:

DrugModalityMax phase
CFI-400945Small molecule2
OCIFISERTIBSmall molecule2
RG-1530Small molecule1

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:

MoleculeNamePhasePatents
CHEMBL1289926AXITINIB416,510
CHEMBL2403108CERITINIB49,002
CHEMBL601719CRIZOTINIB415,133
CHEMBL2028663DABRAFENIB413,060
CHEMBL5416410DASATINIB4674
CHEMBL1983268ENTRECTINIB43,737
CHEMBL553ERLOTINIB4109,860
CHEMBL1287853FEDRATINIB43,770
CHEMBL2103830FOSTAMATINIB44,026
CHEMBL3301622GILTERITINIB42,542
CHEMBL941IMATINIB4113,105
CHEMBL608533MIDOSTAURIN47,641
CHEMBL1078178MOMELOTINIB43,649
CHEMBL502835NINTEDANIB48,978
CHEMBL477772PAZOPANIB416,241
CHEMBL1789941RUXOLITINIB412,161
CHEMBL1336SORAFENIB487,476
CHEMBL535SUNITINIB480,232
CHEMBL24828VANDETANIB443,290
CHEMBL483158ALISERTIB32,433
CHEMBL428690ALVOCIDIB3
CHEMBL491473CEDIRANIB3
CHEMBL522892DOVITINIB3
CHEMBL603469LESTAURTINIB3
CHEMBL223360LINIFANIB3
CHEMBL3426621RIPASUDIL3
CHEMBL91829RUBOXISTAURIN3
CHEMBL3408947OCIFISERTIB2
CHEMBL495727AT-92832
CHEMBL1231124AZD-14802
CHEMBL575448BMS-7548072
CHEMBL460702BMS-7776072
CHEMBL1967878CENISERTIB2
CHEMBL402548DANUSERTIB2
CHEMBL3039513DECERNOTINIB2
CHEMBL215152DEFOSBARASERTIB2
CHEMBL6246ELLAGIC ACID2
CHEMBL482968ENMD-20762
CHEMBL1230609FORETINIB2
CHEMBL3989914GLESATINIB2
CHEMBL1980297ILORASERTIB2
CHEMBL3545307MERESTINIB2
CHEMBL253969OSI-6322
CHEMBL521851PICTILISIB2
CHEMBL475251R-4062
CHEMBL1738757REBASTINIB2
CHEMBL1721885SU-0148132
CHEMBL124660TANDUTINIB2
CHEMBL572878TOZASERTIB2
CHEMBL1980391RG-15301
CHEMBL3545360ASP-30261
CHEMBL2041933AZD-77621
CHEMBL482967CYC-1161
CHEMBL260933GS 62011
CHEMBL1090479GSK-10709161
CHEMBL1908397KW-24491
CHEMBL3600873MK-51081
CHEMBL259084MLN-80541
CHEMBL1084546PF-005622711
CHEMBL3128043PF-037583091

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:

LigandActionAffinityParameter
centrinone BInhibition9.23pKi
CZS-241Inhibition8.59pIC50
ocifisertibInhibition8.55pIC50
RP-1664Inhibition8.52pIC50
RG-1530Inhibition7.96pKd
axitinibInhibition7.34pIC50
XMD8-92Inhibition6.22pKd

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.

LigandMeasureValuePatent
1-[2-(4-methylphenyl)-5-tert-butyl-pyrazol-3-yl]-3-[4-(2-morpholin-4-ylethoxy)naphthalen-1-yl]ureaKD0.37 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-oneIC500.375 nMUS-20230365537: POLO LIKE KINASE 4 INHIBITORS
CHEMBL3408954IC500.64 nM
CHEMBL5407522KI0.65 nM
CHEMBL5183346IC500.7 nM
CHEMBL3353351IC500.71 nM
CHEMBL5194020IC501.1 nM
CHEMBL3353350IC501.2 nM
CHEMBL5408998IC501.5 nM
StaurosporineKD1.7 nM
CHEMBL5191641IC501.8 nM
CHEMBL5430165IC501.9 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-oneIC502.08 nMUS-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-oneIC502.18 nMUS-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-oneIC502.25 nMUS-20230365537: POLO LIKE KINASE 4 INHIBITORS
CHEMBL5407696IC502.6 nM
CHEMBL5422518IC503.1 nM
CEP-701KD3.4 nM
CHEMBL5440306IC503.6 nM
CHEMBL5190548IC503.7 nM
CHEMBL5207473IC503.8 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-oneIC503.85 nMUS-20230365537: POLO LIKE KINASE 4 INHIBITORS
CHEMBL5201909IC504 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-oneIC504.96 nMUS-20230365537: POLO LIKE KINASE 4 INHIBITORS
CHEMBL6188303IC505 nM
CHEMBL3408952IC505.2 nM
Biochemistry 469551 Compound 12IC505.4 nM
CHEMBL5396625IC505.5 nM
CHEMBL5433109IC505.5 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-oneIC505.6 nMUS-8822500: Tyrosine kinase inhibitors
CHEMBL5405221IC505.6 nM
CHEMBL3969370EC505.8 nM
CHEMBL5175418IC505.9 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-oneIC505.97 nMUS-20230365537: POLO LIKE KINASE 4 INHIBITORS
CHEMBL6193379IC506 nM
Staurosporine, 8IC506.5 nM
CHEMBL5198607IC506.5 nM
CHEMBL5200125IC507 nM
CHEMBL5430526IC507 nM
CHEMBL5185001IC507.3 nM
CHEMBL5180759IC507.9 nM
CHEMBL4465866KD8 nM
CHEMBL4576489KD8 nM
CHEMBL5434630IC508.1 nM
CHEMBL5410922IC508.4 nM
CHEMBL5433434IC508.6 nM
CHEMBL5422161IC509.1 nM
CHEMBL5430793IC509.4 nM
CHEMBL5397330IC5010 nM
CHEMBL6189091IC5010 nM

ChEMBL bioactivities

911 potent at pChembl≥5 of 926 total, top 50 by pChembl (potency: 10 = 0.1 nM, 6 = 1 µM).

pChemblTypeValueUnitMolecule
10.00Ki0.1nMCHEMBL3408945
10.00IC500.1nMCHEMBL5209160
9.80Ki0.16nMCHEMBL5185225
9.70IC500.2nMCHEMBL5185001
9.59Ki0.26nMOCIFISERTIB
9.52IC500.3nMCHEMBL5171469
9.52IC500.3nMCHEMBL5428085
9.52IC500.3nMCHEMBL5404983
9.49IC500.32nMCHEMBL2407898
9.43IC500.37nMCHEMBL3353348
9.41IC500.39nMCHEMBL3408955
9.40IC500.4nMCHEMBL5439790
9.35IC500.45nMCHEMBL2407894
9.35IC500.45nMCHEMBL4553351
9.32IC500.48nMCHEMBL2407748
9.23IC500.59nMCHEMBL3353347
9.22IC500.6nMCHEMBL3408944
9.22Ki0.6nMCHEMBL5556344
9.21IC500.61nMCHEMBL2407900
9.19IC500.64nMCHEMBL3408954
9.16IC500.69nMCHEMBL4516793
9.15IC500.71nMCHEMBL3353351
9.15IC500.7nMCHEMBL5171233
9.15IC500.7nMCHEMBL5188129
9.15IC500.7nMCHEMBL5183346
9.14Ki0.73nMCHEMBL3408946
9.12IC500.75nMCHEMBL3353341
9.12Kd0.75nMSTAUROSPORINE
9.11Kd0.77nMSTAUROSPORINE
9.10IC500.79nMCHEMBL3353352
9.10IC500.8nMCHEMBL5200865
9.09IC500.82nMCHEMBL2407744
9.05IC500.9nMCHEMBL2407895
9.05IC500.9nMCHEMBL3408941
9.05IC500.9nMCHEMBL3353361
9.05IC500.9nMCHEMBL3353362
9.05IC500.9nMCHEMBL3353355
9.05IC500.9nMCHEMBL5402864
9.03IC500.94nMCHEMBL4448596
9.03Kd0.93nMTAE-684
9.00IC501nMCHEMBL4516793
9.00IC501nMCHEMBL5185324
9.00IC501nMCHEMBL5420150
8.96IC501.1nMCHEMBL3353348
8.96IC501.1nMCHEMBL3353347
8.96IC501.1nMCHEMBL3408956
8.96IC501.1nMCHEMBL5194020
8.92IC501.2nMCHEMBL3353350
8.92IC501.2nMCHEMBL4440053
8.92IC501.2nMCHEMBL4470693

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.

CompoundAssayTypeValueUnit
6-N-[(2,4-difluorophenyl)methyl]-4-N-(5-methyl-1H-pyrazol-3-yl)-1H-pyrazolo[5,4-d]pyrimidine-4,6-diamine1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assayic500.0001uM
(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’-one1198709: Competitive binding to PLK4 (unknown origin) by double reciprocal plot analysis in presence of ATPki0.0001uM
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-diamine1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assayic500.0002uM
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-amine2073833: Binding affinity to PLK4 (unknown origin) assessed as inhibition constantki0.0002uM
3-[(E)-[3-[(E)-2-[4-[(dimethylamino)methyl]phenyl]ethenyl]indazol-6-ylidene]methyl]-5-methoxy-1H-indol-2-ol762246: 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 assayic500.0003uM
6-N-[(4-chlorophenyl)methyl]-4-N-(5-methyl-1H-pyrazol-3-yl)-1H-pyrazolo[5,4-d]pyrimidine-4,6-diamine1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assayic500.0003uM
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]benzamide2027756: Inhibition of PLK4 (unknown origin) incubated for 1 hr by FRET assayic500.0003uM
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)benzamide2027756: Inhibition of PLK4 (unknown origin) incubated for 1 hr by FRET assayic500.0003uM
(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-one1198709: Competitive binding to PLK4 (unknown origin) by double reciprocal plot analysis in presence of ATPki0.0003uM
5-methoxy-3-[(E)-[3-[(E)-2-pyridin-4-ylethenyl]indazol-6-ylidene]methyl]-1H-indol-2-ol762246: 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 assayic500.0004uM
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]benzamide2027756: Inhibition of PLK4 (unknown origin) incubated for 1 hr by FRET assayic500.0004uM
(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-one1198659: Inhibition of PLK4 (unknown origin) by ELISAic500.0004uM
(2’S,3R)-2’-[3-[(E)-2-[4-[(dimethylamino)methyl]phenyl]ethenyl]-1H-indazol-6-yl]-5-methoxyspiro[1H-indole-3,1’-cyclopropane]-2-one1198659: Inhibition of PLK4 (unknown origin) by ELISAic500.0004uM
(2’S,3R)-5-methoxy-2’-[3-(4-piperazin-1-ylphenyl)-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one1630306: Inhibition of PLK4 (unknown origin)ic500.0004uM
5-methoxy-3-[(E)-[3-[(E)-2-pyridin-3-ylethenyl]indazol-6-ylidene]methyl]-1H-indol-2-ol762246: 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 assayic500.0005uM
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-amine2073833: Binding affinity to PLK4 (unknown origin) assessed as inhibition constantki0.0006uM
5-methoxy-3-[(E)-[3-[(E)-2-[6-(4-methylpiperazin-1-yl)-3-pyridinyl]ethenyl]indazol-6-ylidene]methyl]-1H-indol-2-ol762246: 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 assayic500.0006uM
(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-one1198659: Inhibition of PLK4 (unknown origin) by ELISAic500.0006uM
(2’S,3R)-2’-[3-[(E)-2-[4-[(dimethylamino)methyl]phenyl]ethenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one1198659: Inhibition of PLK4 (unknown origin) by ELISAic500.0006uM
(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-one1198659: Inhibition of PLK4 (unknown origin) by ELISAic500.0006uM
6-N-[(2-chlorophenyl)methyl]-4-N-(5-methyl-1H-pyrazol-3-yl)-1H-pyrazolo[5,4-d]pyrimidine-4,6-diamine1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assayic500.0007uM
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-diamine1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assayic500.0007uM
6-N-[(2,4-difluorophenyl)methyl]-4-N-(5-methyl-1H-pyrazol-3-yl)-1-piperidin-4-ylpyrazolo[3,4-d]pyrimidine-4,6-diamine1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assayic500.0007uM
(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-one1198709: Competitive binding to PLK4 (unknown origin) by double reciprocal plot analysis in presence of ATPki0.0007uM
(2’S,3R)-2’-[3-[(E)-2-[4-[(dimethylamino)methyl]phenyl]ethenyl]-1H-indazol-6-yl]-5-methylspiro[1H-indole-3,1’-cyclopropane]-2-one1178617: Inhibition of human N-terminal GST-tagged PLK4 (1 to 391 residues) expressed in Escherichia coli incubated for 30 mins by ELISA methodic500.0007uM
(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-one1630306: Inhibition of PLK4 (unknown origin)ic500.0007uM
4-[(E)-2-[(6E)-6-[(2-hydroxy-1H-indol-3-yl)methylidene]indazol-3-yl]ethenyl]benzoic acid762246: 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 assayic500.0008uM
6-N-[(4-fluorophenyl)methyl]-4-N-(5-methyl-1H-pyrazol-3-yl)-1H-pyrazolo[5,4-d]pyrimidine-4,6-diamine1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assayic500.0008uM
(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-one256607: Average Binding Constant for STK18; NA=Not Active at 10 uMkd0.0008uM
(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-one1198659: Inhibition of PLK4 (unknown origin) by ELISAic500.0008uM
(2’S,3R)-2’-[3-[(E)-2-[4-[(dimethylamino)methyl]phenyl]ethenyl]-1H-indazol-6-yl]-5-fluorospiro[1H-indole-3,1’-cyclopropane]-2-one1178617: Inhibition of human N-terminal GST-tagged PLK4 (1 to 391 residues) expressed in Escherichia coli incubated for 30 mins by ELISA methodic500.0008uM
3-[(E)-[3-[(E)-2-pyridin-4-ylethenyl]indazol-6-ylidene]methyl]-1H-indole-2,5-diol762246: 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 assayic500.0009uM
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-diamine625076: Binding constant for PLK4 kinase domainkd0.0009uM
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]benzamide2027756: Inhibition of PLK4 (unknown origin) incubated for 1 hr by FRET assayic500.0009uM
(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-one1198659: Inhibition of PLK4 (unknown origin) by ELISAic500.0009uM
(2’S,3R)-2’-[3-[(E)-2-(4-piperazin-1-ylphenyl)ethenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one1198659: Inhibition of PLK4 (unknown origin) by ELISAic500.0009uM
(2’S,3R)-2’-[3-[(E)-2-[4-(piperidin-1-ylmethyl)phenyl]ethenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one1198659: Inhibition of PLK4 (unknown origin) by ELISAic500.0009uM
(2’S,3R)-5-methoxy-2’-[3-[4-(4-methylpiperazin-1-yl)phenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one1630306: Inhibition of PLK4 (unknown origin)ic500.0009uM
(2’S,3R)-2’-[3-[(E)-2-[4-(pyrrolidin-1-ylmethyl)phenyl]ethenyl]-1H-indazol-6-yl]spiro[1H-indole-3,1’-cyclopropane]-2-one1198659: Inhibition of PLK4 (unknown origin) by ELISAic500.0009uM
6-N-[(2-fluorophenyl)methyl]-4-N-(5-methyl-1H-pyrazol-3-yl)-1H-pyrazolo[5,4-d]pyrimidine-4,6-diamine1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assayic500.0010uM
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]benzamide2027756: Inhibition of PLK4 (unknown origin) incubated for 1 hr by FRET assayic500.0010uM
6-N-[(2,4-difluorophenyl)methyl]-4-N-(5-methyl-1H-pyrazol-3-yl)-1-propan-2-ylpyrazolo[3,4-d]pyrimidine-4,6-diamine1860388: Inhibition of recombinant human PLK4 incubated for 60 mins by Lanthascreen Eu kinase binding assayic500.0011uM
(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-one1198659: Inhibition of PLK4 (unknown origin) by ELISAic500.0011uM
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]benzamide2027756: Inhibition of PLK4 (unknown origin) incubated for 1 hr by FRET assayic500.0012uM
(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-one1630306: Inhibition of PLK4 (unknown origin)ic500.0012uM
(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-one1630306: Inhibition of PLK4 (unknown origin)ic500.0012uM
(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-one1178617: Inhibition of human N-terminal GST-tagged PLK4 (1 to 391 residues) expressed in Escherichia coli incubated for 30 mins by ELISA methodic500.0012uM
(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’-one1198659: Inhibition of PLK4 (unknown origin) by ELISAic500.0013uM
5-methyl-3-[(E)-[3-[(E)-2-pyridin-4-ylethenyl]indazol-6-ylidene]methyl]-1H-indol-2-ol762246: 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 assayic500.0014uM
3-[(E)-[3-[(E)-2-[6-(4-methylpiperazin-1-yl)-3-pyridinyl]ethenyl]indazol-6-ylidene]methyl]-1H-indol-2-ol762246: 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 assayic500.0014uM

CTD chemical–gene interactions

76 total (human), top 30 by PubMed support.

ChemicalActions (top 5)PubMed papers
sodium arseniteaffects expression, decreases expression, affects cotreatment, increases abundance3
Valproic Aciddecreases expression, affects expression3
Cyclosporinedecreases expression3
bisphenol Adecreases expression, increases expression2
Resveratrolaffects cotreatment, increases expression2
Acetaminophenincreases expression, decreases expression2
Estradiolincreases expression2
Tretinoindecreases expression2
Cadmium Chlorideaffects binding, increases reaction, increases localization, decreases expression, increases expression2
aristolochic acid Idecreases expression1
3-((6-(2-methoxyphenyl)pyrimidin-4-yl)amino)phenyl)methane sulfonamidedecreases expression1
afuresertibdecreases expression1
echimidinedecreases expression, increases metabolic processing1
dicrotophosdecreases expression1
diminazene aceturatedecreases expression1
lasiocarpinedecreases expression, increases metabolic processing1
triphenyl phosphateaffects expression1
propionaldehydedecreases expression1
trichostatin Aaffects expression1
riddelliinedecreases expression, increases metabolic processing1
tris(1,3-dichloro-2-propyl)phosphatedecreases expression1
perfluorooctanoic aciddecreases expression1
manganese chlorideaffects cotreatment, decreases expression, increases abundance1
2,3-bis(3’-hydroxybenzyl)butyrolactoneaffects cotreatment, increases expression1
caffeic acidincreases expression, increases reaction1
beta-methylcholineaffects expression1
phenethyl isothiocyanatedecreases expression1
tamibarotenedecreases expression1
4-methoxycinnamate methyl esterincreases expression, increases reaction1
2-palmitoylglycerolincreases expression1

ChEMBL screening assays

303 unique, capped per target: 293 binding, 10 functional

Representative assays (with source publication via chembl_document):

Assay IDTypeDescriptionSource paper
CHEMBL1004495BindingBinding affinity to human recombinant PLK4 expressed in Escherichia coli assessed as thermal shift by differential scanning fluorimetryDiscovery of a potent and selective inhibitor for human carbonyl reductase 1 from propionate scanning applied to the macrolide zearalenone. — *Bioorg Med Chem*
CHEMBL1963705FunctionalPUBCHEM_BIOASSAY: Navigating the Kinome. (Class of assay: other) Panel member name: PLK4PubChem BioAssay data set

Clinical trials (associated diseases)

Via MONDO — disease-level, not drug-specific.

54 trials:

NCTPhaseStatusTitle
NCT04224207Phase 3COMPLETEDManagement of Retinitis Pigmentosa by Mesenchymal Stem Cells by Wharton’s Jelly Derived Mesenchymal Stem Cells
NCT07082855Phase 3NOT_YET_RECRUITINGA Multicenter, Randomized, Double-Blind, Controlled Clinical Study of Minocycline for the Treatment of Retinitis Pigmentosa
NCT03763227Phase 2COMPLETEDIntravitreal Ranibizumab (Lucentis®) in the Treatment of Non-leaking Macular Cysts in Retinal Dystrophy
NCT04068207Phase 2COMPLETEDMinocycline Treatment in Retinitis Pigmentosa
NCT04945772Phase 2COMPLETEDEfficacy and Safety of MCO-010 Optogenetic Therapy in Adults With Retinitis Pigmentosa [RESTORE]
NCT05902962Phase 1COMPLETEDSAD of IVT VP-001 in PRPF31 Mutation-Associated Retinal Dystrophy Subjects
NCT06319872Phase 1RECRUITINGThe Effects of Disulfiram (Antabuse®) on Visual Acuity in Patients With Retinal Degeneration
NCT06455826Phase 1COMPLETEDMAD of IVT VP-001 in PRPF31 Mutation-Associated Retinal Dystrophy Subjects (Wallaby)
NCT04737460Phase 1ACTIVE_NOT_RECRUITINGStudy for the Treatment for CLN7 Disease
NCT01064505Phase 1COMPLETEDSafety Study of a Single IVT Injection of QPI-1007 in Chronic Optic Nerve Atrophy and Recent Onset NAION Patients
NCT05147701Phase 1RECRUITINGSafety of Cultured Allogeneic Adult Umbilical Cord Derived Mesenchymal Stem Cells for NAION
NCT03139903Not specifiedCOMPLETEDThe Primordial Dwarfisms: Diagnosis, Identification of the Molecular Basis of Seckel Syndrome and Microcephalic Osteodysplastic Primordial Dwarfism Type II
NCT04855045Phase 2/3UNKNOWNAn 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.
NCT03872479Phase 1/2UNKNOWNSingle Ascending Dose Study in Participants With LCA10
NCT04123626Phase 1/2ACTIVE_NOT_RECRUITINGA 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
NCT04545736Phase 1/2ACTIVE_NOT_RECRUITINGOral Metformin for Treatment of ABCA4 Retinopathy
NCT06212297Phase 1/2ACTIVE_NOT_RECRUITINGFellow-eye Study (FE) of LX101 in Subjects With Inherited Retinal Dystrophy
NCT06852963Phase 1/2ACTIVE_NOT_RECRUITINGA 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
NCT07177196Phase 1/2ACTIVE_NOT_RECRUITINGPersonalized Antisense Oligonucleotide Therapy for a Single Participant With PRPH2 Mutation Associated With Retinal Dystrophy
NCT07063030Early Phase 1RECRUITINGA Study of LX107 Gene Therapy in AIPL1-IRD Patients
NCT07656753Early Phase 1RECRUITINGSafety and Efficacy Study of PUMCH-E111 Injection in Subjects With RLBP1 Related Inherited Retinal Dystrophy
NCT01546181Not specifiedCOMPLETEDRetinal Imaging by Adaptive Optics in Healthy Eyes and During Retinal and General Diseases
NCT01876147Not specifiedCOMPLETEDVisual and Functional Assessment in Low Vision Patients
NCT01920867Not specifiedUNKNOWNStem Cell Ophthalmology Treatment Study
NCT02014389Not specifiedRECRUITINGEvaluation of Objective Perimetry Using Chromatic Multifocal Pupillometer
NCT02983305Not specifiedCOMPLETEDOptical Head-Mounted Display Technology for Low Vision Rehabilitation
NCT03592017Not specifiedCOMPLETEDPerformance of Long-wavelength Autofluorescence Imaging
NCT03662386Not specifiedTERMINATEDProspective Analysis of Genotype-phenotype Correlations Observed in a Large Cohort of Patients With Hereditary Retinal Dystrophies - GEPHIRD
NCT03691168Not specifiedUNKNOWNMulti-center Observation of the Natural Course of Inherited Retinal Dystrophies
NCT03843840Not specifiedCOMPLETEDDual Wavelength OCT
NCT03853252Not specifiedCOMPLETEDiPS Cells of Patients for Models of Retinal Dystrophies
NCT05130385Not specifiedUNKNOWNHigh Resolution Optical Coherence Tomography
NCT05294978Not specifiedRECRUITINGEyeConic: Qualification for Cone-Optogenetics
NCT05573984Not specifiedACTIVE_NOT_RECRUITINGNatural History of PRPF31 Mutation-Associated Retinal Dystrophy
NCT05793515Not specifiedCOMPLETEDMechanisms of Inherited Retinal Dystrophies Using Whole Genome Sequencing and in Vitro and in Vivo Models
NCT05820100Not specifiedCOMPLETEDObservational Study to Assess the Reliability and Validity of the MLYMT and MLSDT
NCT05976139Not specifiedRECRUITINGMicropulsed Laser in Patients With Macular Oedema in Retinal Dystrophies
NCT06162585Not specifiedACTIVE_NOT_RECRUITINGNon-Interventional Long Term Follow-up Study of Participants Previously Enrolled in the RESTORE Study
NCT06177977Not specifiedRECRUITINGSS-HH-OCT as a Novel Diagnostic Modality for Early-Onset Retinal Dystrophies (EORDs)
NCT06375239Not specifiedRECRUITINGObservational Study to Assess Endpoint Operational Feasibility & Measurement Properties in Patients with Retinal Degeneration
NCT06908161Not specifiedNOT_YET_RECRUITINGFunctional Assessments in Vision Impairment
NCT07085533Not specifiedRECRUITINGNatural History Study of Inherited Retinal Diseases
NCT07502664Not specifiedRECRUITINGDevelopment and Evaluation of Functional Visual Field and Navigation Endpoints in Moderate to Profound Inherited Retinal Disease (DEFINE-IRD)
NCT07529041Not specifiedENROLLING_BY_INVITATIONReal-time Acoustic Biofeedback for Enhancing Fixation Stability: A Proof-of-concept Study to Improve Ophthalmic Imaging Diagnostic Quality
NCT04613089Not specifiedRECRUITINGNatural History and Longitudinal Clinical Assessments in NCL / Batten Disease, the International DEM-CHILD Database
NCT02882477Phase 2/3UNKNOWNTreatment of Wolfram Syndrome Type 2 With the Chelator Deferiprone and Incretin Based Therapy
NCT01834079Phase 1/2UNKNOWNStudy the Safety and Efficacy of Bone Marrow Derived Autologous Cells for the Treatment of Optic Nerve Disease
NCT04680143Phase 1/2COMPLETEDSystemic Erythropoietin Injection in Patients Having Optic Atrophy
NCT03011541Not specifiedRECRUITINGStem Cell Ophthalmology Treatment Study II
NCT04580979Not specifiedCOMPLETEDNatural History Study of FDXR Mutation-related Mitochondriopathy
NCT04594590Not specifiedCOMPLETEDNatural History Study of SLC25A46 Mutation-related Mitochondriopathy
NCT04723160Not specifiedCOMPLETEDComputer Aided Diagnosis of Multiple Eye Fundus Diseases From Color Fundus Photograph
NCT06390579Not specifiedCOMPLETEDBuilding Research With Artificial Intelligence in Neuro-Ophthalmology
NCT06566066Not specifiedRECRUITINGRegister 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.