PSMD10

PSMD10
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesPSMD10, dJ889N15.2, p28, p28(GANK), proteasome 26S subunit, non-ATPase 10
External IDsOMIM: 300880; MGI: 1858898; HomoloGene: 94517; GeneCards: PSMD10; OMA:PSMD10 - orthologs
Orthologs
SpeciesHumanMouse
Entrez

5716

53380

Ensembl

ENSG00000101843

ENSMUSG00000031429

UniProt

O75832

Q9Z2X2

RefSeq (mRNA)

NM_170750
NM_002814

NM_001164177
NM_016883

RefSeq (protein)

NP_002805
NP_736606

NP_001157649
NP_058579

Location (UCSC)Chr X: 108.08 – 108.09 MbChr X: 139.85 – 139.86 Mb
PubMed search
Wikidata
View/Edit HumanView/Edit Mouse

26S proteasome non-ATPase regulatory subunit 10 or gankyrin is an enzyme that in humans is encoded by the PSMD10 gene. First isolated in 1998 by Tanaka et al.; Gankyrin is an oncoprotein that is a component of the 19S regulatory cap of the proteasome. Structurally, it contains a 33-amino acid ankyrin repeat that forms a series of alpha helices. It plays a key role in regulating the cell cycle via protein-protein interactions with the cyclin-dependent kinase CDK4. It also binds closely to the E3 ubiquitin ligase MDM2, which is a regulator of the degradation of p53 and retinoblastoma protein, both transcription factors involved in tumor suppression and found mutated in many cancers. Gankyrin also has an anti-apoptotic effect and is overexpressed in certain types of tumor cells such as hepatocellular carcinoma.