KIF22
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Also known as KidOBP-1OBP-2
Summary
KIF22 (kinesin family member 22, HGNC:6391) is a protein-coding gene on chromosome 16p11.2, encoding Kinesin-like protein KIF22 (Q14807). Kinesin family member that is involved in spindle formation and the movements of chromosomes during mitosis and meiosis. It is a selective cancer dependency (DepMap: 16.5% of cell lines).
The protein encoded by this gene is a member of the kinesin-like protein family. The family members are microtubule-dependent molecular motors that transport organelles within cells and move chromosomes during cell division. The C-terminal half of this protein has been shown to bind DNA. Studies with the Xenopus homolog suggests its essential role in metaphase chromosome alignment and maintenance. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.
Source: NCBI Gene 3835 — RefSeq curated summary.
At a glance
- Gene–disease (curated): spondyloepimetaphyseal dysplasia with multiple dislocations (Definitive, GenCC)
- GWAS associations: 1
- Clinical variants (ClinVar): 472 total — 7 pathogenic, 4 likely-pathogenic
- Phenotypes (HPO): 69
- Druggable target: yes
- Cancer dependency (DepMap): dependent in 16.5% of screened cell lines
- MANE Select transcript:
NM_007317
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:6391 |
| Approved symbol | KIF22 |
| Name | kinesin family member 22 |
| Location | 16p11.2 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | Kid, OBP-1, OBP-2 |
| Ensembl gene | ENSG00000079616 |
| Ensembl biotype | protein_coding |
| OMIM | 603213 |
| Entrez | 3835 |
Gene structure
Transcript identifiers
Ensembl transcripts: 45 — 20 protein_coding, 13 nonsense_mediated_decay, 11 retained_intron, 1 protein_coding_CDS_not_defined
ENST00000160827, ENST00000400751, ENST00000561482, ENST00000563263, ENST00000563666, ENST00000565736, ENST00000568312, ENST00000569382, ENST00000569636, ENST00000570173, ENST00000685401, ENST00000685526, ENST00000685961, ENST00000686384, ENST00000687634, ENST00000688492, ENST00000688761, ENST00000689089, ENST00000689107, ENST00000689172, ENST00000689221, ENST00000689415, ENST00000689660, ENST00000689743, ENST00000690258, ENST00000690419, ENST00000690510, ENST00000691128, ENST00000691169, ENST00000691203, ENST00000691486, ENST00000691895, ENST00000693260, ENST00000936369, ENST00000936370, ENST00000936371, ENST00000936372, ENST00000936373, ENST00000936374, ENST00000936375, ENST00000936376, ENST00000936377, ENST00000936378, ENST00000936379, ENST00000936380
RefSeq mRNA: 3 — MANE Select: NM_007317
NM_001256269, NM_001256270, NM_007317
CCDS: CCDS10653, CCDS58444
Canonical transcript exons
ENST00000160827 — 14 exons
| Exon | Start | End |
|---|---|---|
| ENSE00000868486 | 29804814 | 29805026 |
| ENSE00001544520 | 29790751 | 29790829 |
| ENSE00001643614 | 29803998 | 29804065 |
| ENSE00003463035 | 29799628 | 29799781 |
| ENSE00003466414 | 29798593 | 29798747 |
| ENSE00003543999 | 29802769 | 29802937 |
| ENSE00003566442 | 29805115 | 29805174 |
| ENSE00003567436 | 29796893 | 29797088 |
| ENSE00003604044 | 29803449 | 29803608 |
| ENSE00003634076 | 29799264 | 29799494 |
| ENSE00003650217 | 29798374 | 29798501 |
| ENSE00003686677 | 29799913 | 29800048 |
| ENSE00003786587 | 29798975 | 29799184 |
| ENSE00003901322 | 29805263 | 29805384 |
Expression profiles
Bgee: expression breadth ubiquitous, 242 present calls, max score 98.39.
FANTOM5 (CAGE): breadth ubiquitous, TPM avg 38.8541 / max 323.0225, expressed in 1813 samples.
FANTOM5 promoters (8 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 153488 | 22.2613 | 1696 |
| 153489 | 5.8721 | 1118 |
| 153491 | 5.8383 | 1500 |
| 153493 | 3.7677 | 1084 |
| 153492 | 0.5927 | 337 |
| 153494 | 0.4083 | 241 |
| 153490 | 0.0857 | 14 |
| 153487 | 0.0280 | 8 |
Top tissues by expression
276 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| ventricular zone | UBERON:0003053 | 98.39 | gold quality |
| ganglionic eminence | UBERON:0004023 | 96.73 | gold quality |
| right lobe of thyroid gland | UBERON:0001119 | 95.49 | gold quality |
| left lobe of thyroid gland | UBERON:0001120 | 95.26 | gold quality |
| embryo | UBERON:0000922 | 94.78 | gold quality |
| apex of heart | UBERON:0002098 | 94.56 | gold quality |
| mucosa of transverse colon | UBERON:0004991 | 94.48 | gold quality |
| primordial germ cell in gonad | CL:0000670 ∩ UBERON:0000991 | 94.41 | gold quality |
| thyroid gland | UBERON:0002046 | 94.23 | gold quality |
| granulocyte | CL:0000094 | 94.16 | gold quality |
| rectum | UBERON:0001052 | 93.76 | gold quality |
| right testis | UBERON:0004534 | 93.67 | gold quality |
| left testis | UBERON:0004533 | 93.54 | gold quality |
| right lobe of liver | UBERON:0001114 | 92.57 | gold quality |
| skin of abdomen | UBERON:0001416 | 91.81 | gold quality |
| testis | UBERON:0000473 | 91.47 | gold quality |
| skin of leg | UBERON:0001511 | 91.47 | gold quality |
| endometrium epithelium | UBERON:0004811 | 91.26 | gold quality |
| transverse colon | UBERON:0001157 | 91.20 | gold quality |
| right atrium auricular region | UBERON:0006631 | 90.80 | gold quality |
| lower esophagus mucosa | UBERON:0035834 | 90.62 | gold quality |
| male germ line stem cell (sensu Vertebrata) in testis | CL:0000089 ∩ UBERON:0000473 | 90.44 | gold quality |
| metanephros cortex | UBERON:0010533 | 90.06 | gold quality |
| adenohypophysis | UBERON:0002196 | 90.05 | gold quality |
| heart left ventricle | UBERON:0002084 | 90.00 | gold quality |
| small intestine Peyer’s patch | UBERON:0003454 | 89.94 | gold quality |
| cardiac atrium | UBERON:0002081 | 89.65 | gold quality |
| esophagus mucosa | UBERON:0002469 | 89.65 | gold quality |
| cardiac ventricle | UBERON:0002082 | 89.58 | gold quality |
| hindlimb stylopod muscle | UBERON:0004252 | 88.98 | gold quality |
Single-cell (SCXA)
Detected in 4 experiment(s), a significant marker in 3.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-HCAD-10 | yes | 35.10 |
| E-ANND-3 | yes | 17.21 |
| E-MTAB-6678 | yes | 10.31 |
| E-MTAB-8060 | no | 100.25 |
Regulation
Is transcription factor: no
Functional genomics
DepMap (CRISPR cell-line fitness): dependent in 16.5% of screened cell lines.
Literature-anchored findings (GeneRIF, showing 17)
- These results are consistent with Kid having a role in chromosome congression in vivo, where it would be responsible for the polar ejection forces acting on the chromosome arms. (PMID:12606572)
- its molecular structure and interaction with microtubules (PMID:12692123)
- These results suggest that distinct from its role in chromosome movement, Kid contributes to spindle morphogenesis by mediating spindle microtubules stabilization. (PMID:16176979)
- human Aurora B and Kid are identified as APC/C(Cdh1) substrates (PMID:17726374)
- Association of importin-beta and -alpha with hKid triggers the initial targeting of hKid to mitotic chromosomes; local Ran-GTP-mediated cargo release promotes the accumulation of hKid on chromosomes. (PMID:18268099)
- These data suggest that Kid-mediated anaphase/telophase chromosome compaction prevents formation of multinucleated cells. (PMID:18329364)
- in all breast tumor tissues analyzed, variations in the Kid/KIF22 mRNA levels mirrored those seen with SIAH-1 mRNAs. (PMID:20144232)
- Whole-exome sequencing identifies mutations of KIF22 in spondyloepimetaphyseal dysplasia with joint laxity, leptodactylic type (PMID:22152677)
- Recurrent dominant mutations affecting two adjacent residues in the motor domain of the monomeric kinesin KIF22 result in skeletal dysplasia and joint laxity (PMID:22152678)
- we conclude that inhibition of KIF22 suppresses cancer cell proliferation by delaying mitotic exit through the transcriptional upregulation of CDC25C. (PMID:24626146)
- Chromokinesin Kid and kinetochore kinesin CENP-E differentially support chromosome congression without end-on attachment to microtubules. (PMID:25743205)
- KIF22-dependent regulation of microtubule dynamics led to delayed EGFR internalization, enhanced EGFR signaling, and coordination of CAR dynamics at cell-cell junctions resulting in lung cancer. (PMID:29382784)
- We identified two candidate mutations in COL1A2 and MATN1, which might be affected by the main known mutation in B3GALT6. Our finding replicated a previously identified mutation in KIF22 to be potentially associated with spondyloepimetaphyseal dysplasia with joint laxity. We also show that our identified candidate mutation genes, COL1A2, MATN1 and KIF22, are in a direct biological interaction with B3GALT6. (PMID:30358852)
- Suppression of KIF22 Inhibits Cell Proliferation and Xenograft Tumor Growth in Colon Cancer. (PMID:31657617)
- KIF22 Promotes Development of Pancreatic Cancer by Regulating the MEK/ERK/P21 Signaling Axis. (PMID:35578724)
- KIF22 promotes the proliferation and glycolysis of melanoma by activating EGFR/STAT3 signaling. (PMID:37944197)
- KIF22 promotes multiple myeloma progression by regulating the CDC25C/CDK1/cyclinB1 pathway. (PMID:38713252)
Cross-species orthologs
3 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | kif22 | ENSDARG00000102624 |
| mus_musculus | Kif22 | ENSMUSG00000030677 |
| rattus_norvegicus | Kif22 | ENSRNOG00000020281 |
Paralogs (41): KIF1B (ENSG00000054523), KIF26A (ENSG00000066735), KIF2A (ENSG00000068796), KIF3C (ENSG00000084731), KIF9 (ENSG00000088727), KIF16B (ENSG00000089177), KIF4A (ENSG00000090889), KIF3B (ENSG00000101350), KIF20A (ENSG00000112984), KIF21B (ENSG00000116852), KIF17 (ENSG00000117245), KIF14 (ENSG00000118193), KIF18A (ENSG00000121621), KIF25 (ENSG00000125337), KIF1C (ENSG00000129250), KIF1A (ENSG00000130294), KIF3A (ENSG00000131437), KIF12 (ENSG00000136883), KIF13A (ENSG00000137177), KIF23 (ENSG00000137807), KIF11 (ENSG00000138160), CENPE (ENSG00000138778), KIF21A (ENSG00000139116), KIFC3 (ENSG00000140859), KIF2B (ENSG00000141200), KIF2C (ENSG00000142945), KIF5A (ENSG00000155980), KIF26B (ENSG00000162849), KIF15 (ENSG00000163808), KIF6 (ENSG00000164627), KIF27 (ENSG00000165115), KIF7 (ENSG00000166813), KIFC2 (ENSG00000167702), KIF5C (ENSG00000168280), KIF5B (ENSG00000170759), KIF18B (ENSG00000186185), KIF24 (ENSG00000186638), KIF19 (ENSG00000196169), KIF13B (ENSG00000197892), KIF4B (ENSG00000226650)
Protein
Protein identifiers
Kinesin-like protein KIF22 — Q14807 (reviewed: Q14807)
Alternative names: Kinesin-like DNA-binding protein, Kinesin-like protein 4
All UniProt accessions (16): Q14807, A0A8I5KQ45, A0A8I5KRF7, A0A8I5KSP6, A0A8I5KTF7, A0A8I5KW08, A0A8I5KXF2, A0A8I5KXF9, A0A8I5QJC5, A0A8I5QJF2, A0A8I5QKY3, A0A8I5QL17, H3BQB9, H3BRB3, H3BTH5, I3L306
UniProt curated annotations — full annotation on UniProt →
Function. Kinesin family member that is involved in spindle formation and the movements of chromosomes during mitosis and meiosis. Binds to microtubules and to DNA. Plays a role in congression of laterally attached chromosomes in NDC80-depleted cells.
Subunit / interactions. Interacts with FAM83D. Interacts with SIAH1.
Subcellular location. Nucleus. Cytoplasm. Cytoskeleton.
Tissue specificity. Expressed in bone, cartilage, joint capsule, ligament, skin, and primary cultured chondrocytes.
Post-translational modifications. Ubiquitinated; mediated by SIAH1 and leading to its subsequent proteasomal degradation.
Disease relevance. Spondyloepimetaphyseal dysplasia with joint laxity, 2 (SEMDJL2) [MIM:603546] A bone disease characterized by short stature, distinctive midface retrusion, progressive knee malalignment (genu valgum and/or varum), generalized ligamentous laxity, and mild spinal deformity. Intellectual development is not impaired. Radiographic characteristics include significantly retarded epiphyseal ossification that evolves into epiphyseal dysplasia and precocious osteoarthritis, metaphyseal irregularities and vertical striations, constricted femoral neck, slender metacarpals and metatarsals, and mild thoracolumbar kyphosis or scoliosis with normal or mild platyspondyly. The most distinctive features for differential diagnosis of SEMDJL2 are the slender metacarpals and phalanges and the progressive degeneration of carpal bones; however, these 2 features are evident only in older children and young adults. The soft consistency of cartilage in the airways leads to laryngotracheomalacia with proneness to respiratory obstruction and inspiratory stridor in infancy and childhood. The disease is caused by variants affecting the gene represented in this entry.
Similarity. Belongs to the TRAFAC class myosin-kinesin ATPase superfamily. Kinesin family.
Isoforms (2)
| UniProt ID | Names | Canonical? |
|---|---|---|
| Q14807-1 | 1 | yes |
| Q14807-2 | 2 |
RefSeq proteins (3): NP_001243198, NP_001243199, NP_015556* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR001752 | Kinesin_motor_dom | Domain |
| IPR003583 | Hlx-hairpin-Hlx_DNA-bd_motif | Domain |
| IPR010994 | RuvA_2-like | Homologous_superfamily |
| IPR019821 | Kinesin_motor_CS | Conserved_site |
| IPR027417 | P-loop_NTPase | Homologous_superfamily |
| IPR027640 | Kinesin-like_fam | Family |
| IPR036961 | Kinesin_motor_dom_sf | Homologous_superfamily |
Pfam: PF00225, PF12836
UniProt features (61 total): helix 17, strand 13, sequence conflict 9, modified residue 6, sequence variant 5, turn 3, chain 1, domain 1, cross-link 1, splice variant 1, region of interest 1, coiled-coil region 1, compositionally biased region 1, binding site 1
Structure
Experimental structures (PDB)
2 structures.
| PDB | Method | Resolution (Å) |
|---|---|---|
| 6NJE | X-RAY DIFFRACTION | 2.2 |
| 2EDU | SOLUTION NMR |
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q14807-F1 | 74.70 | 0.39 |
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Ligand- & substrate-binding residues (1): 127–134
Post-translational modifications (7): 562, 581, 465, 412, 427, 452, 543
Function
Pathways and Gene Ontology
Reactome pathways
11 pathways
| ID | Pathway |
|---|---|
| R-HSA-2132295 | MHC class II antigen presentation |
| R-HSA-6811434 | COPI-dependent Golgi-to-ER retrograde traffic |
| R-HSA-983189 | Kinesins |
| R-HSA-109582 | Hemostasis |
| R-HSA-1280218 | Adaptive Immune System |
| R-HSA-168256 | Immune System |
| R-HSA-199991 | Membrane Trafficking |
| R-HSA-5653656 | Vesicle-mediated transport |
| R-HSA-6811442 | Intra-Golgi and retrograde Golgi-to-ER traffic |
| R-HSA-8856688 | Golgi-to-ER retrograde transport |
| R-HSA-983231 | Factors involved in megakaryocyte development and platelet production |
MSigDB gene sets: 456 (showing top):
GOBP_CHROMOSOME_ORGANIZATION, MULLIGHAN_NPM1_SIGNATURE_3_UP, HORIUCHI_WTAP_TARGETS_DN, REACTOME_ADAPTIVE_IMMUNE_SYSTEM, CROONQUIST_NRAS_SIGNALING_DN, GOBP_CHROMOSOME_LOCALIZATION, GOCC_KINESIN_COMPLEX, GRAESSMANN_APOPTOSIS_BY_DOXORUBICIN_UP, REACTOME_MEMBRANE_TRAFFICKING, GOLDRATH_ANTIGEN_RESPONSE, GOBP_ORGANELLE_FISSION, LE_EGR2_TARGETS_UP, FISCHER_G2_M_CELL_CYCLE, GOBP_SISTER_CHROMATID_COHESION, chr16p11
GO Biological Process (7): mitotic cell cycle (GO:0000278), DNA repair (GO:0006281), microtubule-based movement (GO:0007018), sister chromatid cohesion (GO:0007062), mitotic metaphase chromosome alignment (GO:0007080), metaphase chromosome alignment (GO:0051310), microtubule-based process (GO:0007017)
GO Molecular Function (8): DNA binding (GO:0003677), microtubule motor activity (GO:0003777), ATP binding (GO:0005524), microtubule binding (GO:0008017), ATP hydrolysis activity (GO:0016887), nucleotide binding (GO:0000166), cytoskeletal motor activity (GO:0003774), protein binding (GO:0005515)
GO Cellular Component (11): kinetochore (GO:0000776), chromatin (GO:0000785), nucleus (GO:0005634), cytoplasm (GO:0005737), cytosol (GO:0005829), kinesin complex (GO:0005871), microtubule (GO:0005874), nuclear speck (GO:0016607), mitotic spindle (GO:0072686), spindle (GO:0005819), cytoskeleton (GO:0005856)
Reactome top-level categories
Rollup of top-8 pathways:
| Category | Pathways |
|---|---|
| Adaptive Immune System | 1 |
| Golgi-to-ER retrograde transport | 1 |
| Factors involved in megakaryocyte development and platelet production | 1 |
| Immune System | 1 |
| Vesicle-mediated transport | 1 |
| Membrane Trafficking | 1 |
| Intra-Golgi and retrograde Golgi-to-ER traffic | 1 |
| Hemostasis | 1 |
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| intracellular membraneless organelle | 3 |
| cellular anatomical structure | 3 |
| ATP-dependent activity | 2 |
| microtubule cytoskeleton | 2 |
| cell cycle | 1 |
| mitotic nuclear division | 1 |
| DNA metabolic process | 1 |
| DNA damage response | 1 |
| microtubule-based process | 1 |
| cell cycle process | 1 |
| chromosome organization | 1 |
| mitotic sister chromatid segregation | 1 |
| mitotic cell cycle | 1 |
| metaphase chromosome alignment | 1 |
| mitotic cell cycle process | 1 |
| chromosome localization | 1 |
| nuclear chromosome segregation | 1 |
| cellular process | 1 |
| nucleic acid binding | 1 |
| cytoskeletal motor activity | 1 |
| polypeptide conformation or assembly isomerase activity | 1 |
| adenyl ribonucleotide binding | 1 |
| purine ribonucleoside triphosphate binding | 1 |
| tubulin binding | 1 |
| ribonucleoside triphosphate phosphatase activity | 1 |
| nucleoside phosphate binding | 1 |
| heterocyclic compound binding | 1 |
| molecular_function | 1 |
| binding | 1 |
| condensed chromosome, centromeric region | 1 |
| supramolecular complex | 1 |
| chromosome | 1 |
| intracellular membrane-bounded organelle | 1 |
| intracellular anatomical structure | 1 |
| cytoplasm | 1 |
| microtubule associated complex | 1 |
| polymeric cytoskeletal fiber | 1 |
| nuclear ribonucleoprotein granule | 1 |
| spindle | 1 |
Protein interactions and networks
STRING
1864 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| KIF22 | OBP2B | Q9NPH6 | 891 |
| KIF22 | MAZ | P56270 | 855 |
| KIF22 | Q5T8A5 | Q5T8A5 | 853 |
| KIF22 | LCN1 | P31025 | 780 |
| KIF22 | APOD | P05090 | 727 |
| KIF22 | KCTD13 | Q8WZ19 | 688 |
| KIF22 | HIRIP3 | Q9BW71 | 679 |
| KIF22 | ASPHD1 | Q5U4P2 | 653 |
| KIF22 | PAGR1 | Q9BTK6 | 638 |
| KIF22 | SEZ6L2 | Q6UXD5 | 631 |
| KIF22 | DOC2A | Q14183 | 605 |
| KIF22 | CDIPT | O14735 | 598 |
| KIF22 | YPEL3 | P61236 | 586 |
| KIF22 | ZNG1A | Q9BRT8 | 583 |
| KIF22 | SACK1D | Q9H4H8 | 558 |
IntAct
72 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| SMARCB1 | ARID1A | psi-mi:“MI:0914”(association) | 0.860 |
| KIF22 | KPNA4 | psi-mi:“MI:0914”(association) | 0.730 |
| KIF22 | KPNA3 | psi-mi:“MI:0914”(association) | 0.730 |
| CFTR | ESYT2 | psi-mi:“MI:2364”(proximity) | 0.710 |
| KPNB1 | POM121C | psi-mi:“MI:0914”(association) | 0.530 |
| TBC1D15 | UBXN8 | psi-mi:“MI:0914”(association) | 0.530 |
| TBC1D15 | MYO9A | psi-mi:“MI:0914”(association) | 0.530 |
| DDX21 | MED19 | psi-mi:“MI:2364”(proximity) | 0.480 |
| H3C1 | SMCHD1 | psi-mi:“MI:2364”(proximity) | 0.410 |
| KIF22 | CRK | psi-mi:“MI:0915”(physical association) | 0.400 |
| KIF22 | H2BC12L | psi-mi:“MI:0915”(physical association) | 0.400 |
| KIF22 | NPM1 | psi-mi:“MI:0915”(physical association) | 0.400 |
| KIF22 | H1-5 | psi-mi:“MI:0915”(physical association) | 0.400 |
| KIF22 | H3-4 | psi-mi:“MI:0915”(physical association) | 0.400 |
| KIF22 | H1-4 | psi-mi:“MI:0915”(physical association) | 0.400 |
| ATXN1 | KIF22 | psi-mi:“MI:0915”(physical association) | 0.370 |
| SVIL | KIF22 | psi-mi:“MI:0915”(physical association) | 0.370 |
| Smc3 | PDS5B | psi-mi:“MI:0914”(association) | 0.350 |
| RPL10 | RPS6 | psi-mi:“MI:0914”(association) | 0.350 |
| KIF22 | PSEN2 | psi-mi:“MI:0914”(association) | 0.350 |
| RBM45 | ATP5MF-PTCD1 | psi-mi:“MI:0914”(association) | 0.350 |
| FOXE1 | DDX39A | psi-mi:“MI:0914”(association) | 0.350 |
| FOXL1 | DDX39A | psi-mi:“MI:0914”(association) | 0.350 |
| FOXM1 | SMARCA5 | psi-mi:“MI:0914”(association) | 0.350 |
| FOXQ1 | DDX39A | psi-mi:“MI:0914”(association) | 0.350 |
| TEAD2 | DDX39A | psi-mi:“MI:0914”(association) | 0.350 |
| ESR1 | ESYT2 | psi-mi:“MI:0914”(association) | 0.350 |
BioGRID (161): KIF22 (Affinity Capture-RNA), KIF22 (Affinity Capture-RNA), KIF22 (Affinity Capture-MS), KIF22 (Affinity Capture-MS), KIF22 (Affinity Capture-MS), KIF22 (Proximity Label-MS), KIF22 (Proximity Label-MS), C4A (Affinity Capture-MS), CCNB1 (Affinity Capture-MS), FUS (Affinity Capture-MS), SP110 (Affinity Capture-MS), KIF22 (Affinity Capture-MS), KIF22 (Affinity Capture-MS), KPNA3 (Affinity Capture-MS), KPNA4 (Affinity Capture-MS)
ESM2 similar proteins: A0A8I3NFE2, A2AP18, A6QP29, A6QPL4, A8WFU8, B1AVH7, B5DFA1, D2H0G5, D7PF45, O15357, O43304, O75038, O75808, Q0GNC1, Q0QWG9, Q14807, Q27J81, Q3V300, Q4R918, Q5I0E8, Q5REP4, Q5VV41, Q5XI63, Q60443, Q60806, Q61152, Q61846, Q69ZT1, Q6DT37, Q6L512, Q6P3R1, Q6P549, Q6ZMV9, Q7ZYL5, Q80UW5, Q8BL80, Q8C7W7, Q99952, Q9BVG8, Q9BW19
Diamond homologs: A1ZAJ2, A6QPL4, A8BB91, A8BKD1, A8WFU8, B7EJ91, B7ZNG0, B9F7C8, B9FUF9, B9G3M6, B9GE13, F1M4A4, F1QN54, F4ICA0, F4IIS5, F4J1U4, O15066, O23826, O35071, O35231, O35787, O43093, O43896, O59751, O88658, O95239, P28741, P33173, P33174, P33176, P46863, P46867, P46869, P46871, P46872, P46873, P48467, P52732, P53086, P82266
SIGNOR signaling
3 interactions.
| A | Effect | B | Mechanism |
|---|---|---|---|
| CDK1 | “up-regulates activity” | KIF22 | phosphorylation |
| CyclinB/CDK1 | up-regulates | KIF22 | phosphorylation |
| CHFR | “down-regulates quantity by destabilization” | KIF22 | ubiquitination |
Enriched among interaction partners
Reactome pathways and GO biological processes over-represented among this gene’s 91 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 |
|---|---|---|---|
| NS1 Mediated Effects on Host Pathways | 5 | 23.0× | 4e-04 |
| Antimicrobial mechanism of IFN-stimulated genes | 6 | 19.1× | 2e-04 |
| B-WICH complex positively regulates rRNA expression | 8 | 15.7× | 2e-05 |
| Influenza Infection | 5 | 14.2× | 2e-03 |
| Assembly of the ORC complex at the origin of replication | 5 | 13.3× | 2e-03 |
| Deposition of new CENPA-containing nucleosomes at the centromere | 5 | 12.8× | 2e-03 |
| Condensation of Prophase Chromosomes | 5 | 12.6× | 2e-03 |
| ISG15 antiviral mechanism | 5 | 12.1× | 2e-03 |
GO biological processes:
| GO term | Partners | Fold | FDR |
|---|---|---|---|
| nucleosome assembly | 8 | 13.2× | 1e-04 |
| protein import into nucleus | 6 | 10.2× | 3e-03 |
| chromatin remodeling | 9 | 7.7× | 5e-04 |
Disease & clinical
Clinical variants and AI predictions
ClinVar
472 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 7 |
| Likely pathogenic | 4 |
| Uncertain significance | 227 |
| Likely benign | 143 |
| Benign | 44 |
Top pathogenic / likely-pathogenic (11)
| Variant ID | HGVS | Classification |
|---|---|---|
| 1330307 | GRCh37/hg19 16p11.2(chr16:29590554-30197341)x3 | Pathogenic |
| 160918 | GRCh38/hg38 16p11.2(chr16:29662633-30187279)x1 | Pathogenic |
| 2575102 | NM_007317.3(KIF22):c.146G>A (p.Arg49Gln) | Pathogenic |
| 30335 | NM_007317.3(KIF22):c.446G>A (p.Arg149Gln) | Pathogenic |
| 3243486 | NC_000016.9:g.(?29814750)(29825274_?)del | Pathogenic |
| 625603 | GRCh37/hg19 16p11.2(chr16:29532264-30271237) | Pathogenic |
| 997089 | GRCh37/hg19 16p11.2(chr16:29673954-30198600) | Pathogenic |
| 1299611 | NM_007317.3(KIF22):c.752T>C (p.Leu251Pro) | Likely pathogenic |
| 1685360 | NM_007317.3(KIF22):c.1399G>A (p.Glu467Lys) | Likely pathogenic |
| 30333 | NM_007317.3(KIF22):c.442C>T (p.Pro148Ser) | Likely pathogenic |
| 988564 | NM_007317.3(KIF22):c.443C>A (p.Pro148Gln) | Likely pathogenic |
SpliceAI
2269 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 16:29790826:TCAGG:T | donor_loss | 1.0000 |
| 16:29790827:CAGGT:C | donor_loss | 1.0000 |
| 16:29790828:AGGTA:A | donor_loss | 1.0000 |
| 16:29790829:GGTAC:G | donor_loss | 1.0000 |
| 16:29790830:G:GA | donor_loss | 1.0000 |
| 16:29790831:T:G | donor_loss | 1.0000 |
| 16:29796888:TCCAG:T | acceptor_loss | 1.0000 |
| 16:29796889:CCAG:C | acceptor_loss | 1.0000 |
| 16:29796890:CAG:C | acceptor_loss | 1.0000 |
| 16:29796891:A:AG | acceptor_gain | 1.0000 |
| 16:29796891:AG:A | acceptor_gain | 1.0000 |
| 16:29796892:G:GG | acceptor_gain | 1.0000 |
| 16:29796892:GG:G | acceptor_gain | 1.0000 |
| 16:29796892:GGA:G | acceptor_gain | 1.0000 |
| 16:29796892:GGAGC:G | acceptor_gain | 1.0000 |
| 16:29797084:TACCA:T | donor_gain | 1.0000 |
| 16:29797087:CA:C | donor_gain | 1.0000 |
| 16:29797088:AG:A | donor_loss | 1.0000 |
| 16:29797089:G:GG | donor_gain | 1.0000 |
| 16:29798368:CTGCA:C | acceptor_loss | 1.0000 |
| 16:29798369:TGCAG:T | acceptor_loss | 1.0000 |
| 16:29798370:GCAG:G | acceptor_loss | 1.0000 |
| 16:29798371:CAGGT:C | acceptor_loss | 1.0000 |
| 16:29798372:A:AG | acceptor_gain | 1.0000 |
| 16:29798372:AGG:A | acceptor_loss | 1.0000 |
| 16:29798373:G:GG | acceptor_gain | 1.0000 |
| 16:29798498:GCTG:G | donor_gain | 1.0000 |
| 16:29798507:G:GT | donor_gain | 1.0000 |
| 16:29798587:TCCCA:T | acceptor_loss | 1.0000 |
| 16:29798588:CCCAG:C | acceptor_loss | 1.0000 |
AlphaMissense
4278 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 16:29798471:A:C | S122R | 0.999 |
| 16:29798473:T:A | S122R | 0.999 |
| 16:29798473:T:G | S122R | 0.999 |
| 16:29798487:G:A | G127E | 0.999 |
| 16:29798721:T:C | S175P | 0.999 |
| 16:29798728:T:C | L177P | 0.999 |
| 16:29799161:A:C | S246R | 0.999 |
| 16:29799162:G:T | S246I | 0.999 |
| 16:29799163:T:A | S246R | 0.999 |
| 16:29799163:T:G | S246R | 0.999 |
| 16:29799174:T:C | L250P | 0.999 |
| 16:29799319:T:C | L272P | 0.999 |
| 16:29799325:A:C | D274A | 0.999 |
| 16:29799325:A:G | D274G | 0.999 |
| 16:29799325:A:T | D274V | 0.999 |
| 16:29799326:C:A | D274E | 0.999 |
| 16:29799326:C:G | D274E | 0.999 |
| 16:29799328:T:C | L275S | 0.999 |
| 16:29799333:G:T | G277W | 0.999 |
| 16:29799394:T:A | I297N | 0.999 |
| 16:29799462:T:G | Y320D | 0.999 |
| 16:29799478:T:A | L325H | 0.999 |
| 16:29799484:G:C | R327P | 0.999 |
| 16:29799652:A:C | S339R | 0.999 |
| 16:29799654:T:A | S339R | 0.999 |
| 16:29799654:T:G | S339R | 0.999 |
| 16:29799713:T:A | L359H | 0.999 |
| 16:29798475:T:A | V123E | 0.998 |
| 16:29798486:G:A | G127R | 0.998 |
| 16:29798486:G:C | G127R | 0.998 |
dbSNP variants (sampled 300 via entrez): RS1000063049 (16:29805858 T>C), RS1000107177 (16:29801029 G>A), RS1000117193 (16:29804965 T>C), RS1000310515 (16:29801326 T>C), RS1000392185 (16:29791287 C>G,T), RS1000804560 (16:29789206 T>G), RS1000847946 (16:29797088 A>G), RS1001070698 (16:29803517 C>A,T), RS1001071529 (16:29788959 T>C,G), RS1001163125 (16:29792086 A>G), RS1001215342 (16:29792412 A>C), RS1001238055 (16:29794623 C>A), RS1001513990 (16:29802432 T>G), RS1001746297 (16:29799407 G>A,C,T), RS1001777052 (16:29801732 CAGGA>C)
Disease associations
OMIM: gene MIM:603213 | disease phenotypes: MIM:128200, MIM:603546, MIM:614671, MIM:209850
GenCC curated gene-disease
| Disease | Classification | Inheritance |
|---|---|---|
| spondyloepimetaphyseal dysplasia with multiple dislocations | Definitive | Autosomal dominant |
Mondo (7): episodic kinesigenic dyskinesia (MONDO:0044202), spondyloepimetaphyseal dysplasia with multiple dislocations (MONDO:0011335), breast ductal adenocarcinoma (MONDO:0005590), skeletal dysplasia (MONDO:0018230), epilepsy (MONDO:0005027), chromosome 16p11.2 duplication syndrome (MONDO:0013847), autism (MONDO:0005260)
Orphanet (4): Paroxysmal kinesigenic dyskinesia (Orphanet:98809), Spondyloepimetaphyseal dysplasia with joint laxity, leptodactylic type (Orphanet:93360), Primary bone dysplasia (Orphanet:364526), Proximal 16p11.2 microduplication syndrome (Orphanet:370079)
HPO phenotypes
69 total (30 of 69 shown, HPO-id order):
| HPO | Term |
|---|---|
| HP:0000006 | Autosomal dominant inheritance |
| HP:0000272 | Malar flattening |
| HP:0000486 | Strabismus |
| HP:0000926 | Platyspondyly |
| HP:0000977 | Soft skin |
| HP:0001238 | Slender finger |
| HP:0001250 | Seizure |
| HP:0001252 | Hypotonia |
| HP:0001290 | Generalized hypotonia |
| HP:0001374 | Congenital hip dislocation |
| HP:0001382 | Joint hypermobility |
| HP:0001498 | Carpal bone hypoplasia |
| HP:0001518 | Small for gestational age |
| HP:0001602 | Laryngeal stenosis |
| HP:0001832 | Abnormal metatarsal morphology |
| HP:0002650 | Scoliosis |
| HP:0002651 | Spondyloepimetaphyseal dysplasia |
| HP:0002652 | Skeletal dysplasia |
| HP:0002656 | Epiphyseal dysplasia |
| HP:0002663 | Delayed epiphyseal ossification |
| HP:0002751 | Kyphoscoliosis |
| HP:0002761 | Generalized joint hypermobility |
| HP:0002808 | Kyphosis |
| HP:0002827 | Hip dislocation |
| HP:0002857 | Genu valgum |
| HP:0002970 | Genu varum |
| HP:0002987 | Elbow flexion contracture |
| HP:0003015 | Flared metaphysis |
| HP:0003025 | Metaphyseal irregularity |
| HP:0003048 | Radial head subluxation |
GWAS associations
1 associations (top):
| Study | Trait | p-value |
|---|---|---|
| GCST001765_19 | Red blood cell traits | 6.000000e-23 |
EFO canonical traits (1, from GWAS)
| EFO ID | Trait name |
|---|---|
| EFO:0004527 | mean corpuscular hemoglobin |
MeSH disease descriptors (4)
| Descriptor | Name | Tree numbers |
|---|---|---|
| D001321 | Autistic Disorder | F03.625.164.113.500 |
| D018270 | Carcinoma, Ductal, Breast | C04.557.470.200.025.232.500; C04.557.470.615.132.500; C04.588.180.390; C17.800.090.500.390 |
| D004827 | Epilepsy | C10.228.140.490 |
| C535784 | Spondyloepimetaphyseal dysplasia with multiple dislocations (supp.) |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: yes
ChEMBL targets (1): CHEMBL5470 (SINGLE PROTEIN)
PharmGKB: 1 entry (VIP=true, CPIC=false)
CTD chemical–gene interactions
47 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| sodium arsenite | decreases expression, increases abundance, increases expression | 7 |
| bisphenol A | affects expression, decreases expression | 4 |
| Cyclosporine | decreases expression | 3 |
| Arsenic | decreases expression, increases abundance, increases expression | 2 |
| Tretinoin | decreases expression | 2 |
| FR900359 | decreases phosphorylation | 1 |
| TAK-243 | increases sumoylation | 1 |
| propionaldehyde | decreases expression | 1 |
| geraniol | decreases expression | 1 |
| trichostatin A | affects expression | 1 |
| tris(1,3-dichloro-2-propyl)phosphate | decreases expression | 1 |
| cobaltous chloride | decreases expression | 1 |
| perfluorooctanoic acid | decreases expression | 1 |
| zinc chromate | decreases expression, increases abundance | 1 |
| coumarin | increases phosphorylation | 1 |
| diallyl trisulfide | decreases expression | 1 |
| 2,3-dimethoxy-1,4-naphthoquinone | increases expression | 1 |
| chromium hexavalent ion | increases abundance, decreases expression | 1 |
| perfluoro-n-nonanoic acid | decreases expression | 1 |
| corosolic acid | decreases expression | 1 |
| 2-palmitoylglycerol | increases expression | 1 |
| K 7174 | decreases expression | 1 |
| 2,2’,4,4’-tetrabromodiphenyl ether | affects expression | 1 |
| jinfukang | increases expression | 1 |
| Bortezomib | decreases expression | 1 |
| Resveratrol | affects cotreatment, increases expression | 1 |
| Sunitinib | decreases expression | 1 |
| Benzo(a)pyrene | increases methylation | 1 |
| Cadmium | decreases expression | 1 |
| Caffeine | decreases phosphorylation | 1 |
ChEMBL screening assays
4 unique, capped per target: 4 binding
Representative assays (with source publication via chembl_document):
| Assay ID | Type | Description | Source paper |
|---|---|---|---|
| CHEMBL1026544 | Binding | Inhibition of ATPase activity of kid by luminescent kinase assay | Bis(hetero)aryl derivatives as unique kinesin spindle protein inhibitors. — Bioorg Med Chem Lett |
Cellosaurus cell lines
1 cell lines: 1 transformed cell line
First 10 cell lines (id-ordered, not curated):
| Cellosaurus | Name | Category | Sex |
|---|---|---|---|
| CVCL_B2ZU | Abcam HEK293T KIF22 KO | Transformed cell line | Female |
Clinical trials (associated diseases)
300 trials via MONDO — disease-level, not drug-specific.
| Trial | Phase | Status | Title |
|---|---|---|---|
| NCT00004637 | PHASE4 | COMPLETED | Double-Blind, Placebo-Controlled Trial of Vitamin E as Add-on Therapy for Children With Epilepsy |
| NCT00043914 | PHASE4 | COMPLETED | Measurement Of Serum Levels Of Two Antiepileptic Drugs During Conversion In Patients With Epilepsy |
| NCT00132223 | PHASE4 | UNKNOWN | Effects on the Diagnostic Accuracy of Magnetic Imaging Angiographies of the Supra-Aortic Vessels by Three Different Magnetic Resonance Contrast Agents in Patients |
| NCT00133081 | PHASE4 | UNKNOWN | Study to Improve the Treatment of Epilepsy (SITE) |
| NCT00137709 | PHASE4 | UNKNOWN | Hormone Profiles in Adults With Newly Diagnosed Epilepsy |
| NCT00154076 | PHASE4 | COMPLETED | A Multicenter Comparative Trial of Zonisamide and Topiramate as Initial Monotherapy in Untreated Epilepsies |
| NCT00165828 | PHASE4 | TERMINATED | Efficacy and Safety of an add-on Treatment With Zonisamide in Adults With Focal Epileptic Seizures With or Without Secondary Generalization |
| NCT00181116 | PHASE4 | COMPLETED | Levetiracetam for Benign Rolandic Epilepsy |
| NCT00207935 | PHASE4 | COMPLETED | Use of Sustained Release Antiepileptic Medication (Depakote® ER) for Pediatric Epilepsy in a Mental Retardation/Developmental Disorder Population |
| NCT00215592 | PHASE4 | COMPLETED | Open Label, Zonegran (Zonisamide) In Partial Onset Seizures |
| NCT00266604 | PHASE4 | COMPLETED | A Study to Evaluate the Dosing, Effectiveness and Safety of Topiramate for the Treatment of Epilepsy |
| NCT00288639 | PHASE4 | COMPLETED | Lyrica (Pregabalin) Administered as an Add-on Therapy for Partial Seizures (LEADER). |
| NCT00312676 | PHASE4 | UNKNOWN | Compare Tolerability of an Overnight Switch to Gradual Switch Between Two Different Forms of Depakote |
| NCT00323947 | PHASE4 | COMPLETED | Methylphenidate for Treating Attention Deficit Hyperactivity Disorder in Children With Both ADHD and Epilepsy |
| NCT00385411 | PHASE4 | COMPLETED | Study of Valproate in Young Patients Suffering From Epilepsy |
| NCT00522418 | PHASE4 | TERMINATED | Study Comparing Best Medical Practice With or Without VNS Therapy in Pharmacoresistant Partial Epilepsy Patients |
| NCT00537940 | PHASE4 | COMPLETED | Comparative Study Of Pregabalin And Gabapentin As Adjunctive Therapy In Subjects With Partial Seizures |
| NCT00552526 | PHASE4 | UNKNOWN | Ketogenic Diet vs.Antiepileptic Drug Treatment in Drug Resistant Epilepsy |
| NCT00564915 | PHASE4 | COMPLETED | RCT of the Efficacy of the Ketogenic Diet in the Treatment of Epilepsy |
| NCT00571155 | PHASE4 | COMPLETED | Trial of Levetiracetam in Patients With Primary Brain Tumors and Symptomatic Seizures Who Undergo Surgery |
| NCT00572195 | PHASE4 | COMPLETED | RNS® System LTT Study |
| NCT00610532 | PHASE4 | TERMINATED | Evaluating the Transporter Protein Inhibitor Probenecid In Patients With Epilepsy |
| NCT00630357 | PHASE4 | COMPLETED | Trial to Evaluate the Safety and Efficacy of Keppra After Conversion to Mono-therapy in Subjects With Partial Epilepsy |
| NCT00630630 | PHASE4 | COMPLETED | Study on Safety and Efficacy of Levetiracetam in the Adjunctive Treatment of Female Subjects With C1 Catamenial Epilepsy |
| NCT00630968 | PHASE4 | COMPLETED | S.K.A.T.E.: Safety of Keppra as Adjunctive Therapy in Epilepsy |
| NCT00631150 | PHASE4 | COMPLETED | A Phase IV-Pharmacovigilance Study of Keppra Greece - S.K.A.T.E.: Safety of Keppra as Adjunctive Therapy in Epilepsy |
| NCT00659958 | PHASE4 | COMPLETED | ZAGAL Study: Evaluating Effectiveness and Tolerability of Zonisamide as Adjunctive Therapy in Patients With Partial Onset Seizures Treated With Two Antiepileptic Drugs |
| NCT00713622 | PHASE4 | COMPLETED | Comparing The Effect On Cognition Of Adjunctive Therapy With Zonisamide Versus Sodium Valproate |
| NCT00807989 | PHASE4 | COMPLETED | The Efficacy and Safety of Low Dose Combination of LTG and VPA Compared to CBZ Monotherapy |
| NCT00832884 | PHASE4 | COMPLETED | The Safety of Intravenous Lacosamide |
| NCT00869622 | PHASE4 | COMPLETED | Antiepileptic Drugs and Osteoporotic Prevention Trial |
| NCT00896987 | PHASE4 | COMPLETED | Lamotrigine Cognitive Function Study in Adult Untreated Epilepsies |
| NCT00952081 | PHASE4 | COMPLETED | A Pilot Study to Evaluate Efficacy and Safety of Clevidipine in Neurosurgical Patients |
| NCT01118455 | PHASE4 | TERMINATED | Trial to Assess Vagus Nerve Stimulation Therapy vs. Anti-Epileptic Drug (AED) Treatment in Children With Refractory Seizures |
| NCT01127165 | PHASE4 | COMPLETED | Low and High Dose Zonisamide in Children as Monotherapy |
| NCT01127256 | PHASE4 | COMPLETED | Comparative Study of Zonisamide and Carbamazepine as an Initial Monotherapy: Efficacy and Safety Evaluation |
| NCT01140867 | PHASE4 | COMPLETED | Open-label, Multi-center Trial of Zonisamide as Adjunctive Therapy in Patients With Uncontrolled Partial Epilepsy |
| NCT01175954 | PHASE4 | COMPLETED | Cognitive and Behavioral Effects of Lacosamide |
| NCT01229735 | PHASE4 | COMPLETED | Levetiracetam Versus Topiramate as Adjunctive Therapy to Evaluate Efficacy and Safety in Subjects With Refractory Partial Onset Seizures |
| NCT01244724 | PHASE4 | TERMINATED | Lexapro for Major Depression in Patients With Epilepsy |
Related Atlas pages
- Associated diseases: spondyloepimetaphyseal dysplasia with multiple dislocations
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): chromosome 16p11.2 duplication syndrome, episodic kinesigenic dyskinesia, skeletal dysplasia, spondyloepimetaphyseal dysplasia with multiple dislocations