VPS33A

Vacuolar protein sorting-associated protein 33A is a protein that in humans is encoded by the VPS33A gene.

VPS33A
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 4BX8, 4BX9
Identifiers
Aliases	VPS33A, CORVET/HOPS core subunit
External IDs	OMIM: 610034; MGI: 1924823; HomoloGene: 11294; GeneCards: VPS33A; OMA:VPS33A - orthologs
Gene location (Mouse) Chr. Chromosome 5 (mouse) Band 5 F|5 63.03 cM Start 123,666,722 bp End 123,711,101 bp
RNA expression pattern Bgee Human Mouse (ortholog) n/a Top expressed in greater petrosal nerve dentate gyrus of hippocampal formation granule cell primary visual cortex superior frontal gyrus supraoptic nucleus trigeminal ganglion muscle of thigh substantia nigra Region I of hippocampus proper cerebellar cortex BioGPS More reference expression data
Gene ontology Molecular function protein binding Cellular component HOPS complex AP-3 adaptor complex endosome late endosome membrane late endosome membrane clathrin complex lysosomal membrane early endosome perinuclear region of cytoplasm lysosome cytoplasmic vesicle clathrin-coated vesicle autophagosome Biological process endosome to lysosome transport platelet formation melanosome localization vesicle docking involved in exocytosis autophagy autophagosome maturation lysosome localization protein transport regulation of developmental pigmentation vesicle-mediated transport regulation of lysosomal lumen pH transport Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 65082 77573 Ensembl ENSG00000139719 ENSMUSG00000029434 UniProt Q96AX1 Q9D2N9 RefSeq (mRNA) NM_022916 NM_029929 NM_001359513 RefSeq (protein) NP_075067 NP_001337947 NP_001337948 NP_001337949 NP_001337950 NP_084205 NP_001346442 Location (UCSC) n/a Chr 5: 123.67 – 123.71 Mb PubMed search
Wikidata
View/Edit Human View/Edit Mouse

Function

Vesicle mediated protein sorting plays an important role in segregation of intracellular molecules into distinct organelles. Genetic studies in yeast have identified more than 40 vacuolar protein sorting (VPS) genes involved in vesicle transport to vacuoles. This gene is a member of the Sec-1 domain family, and it encodes a protein similar to the yeast class C Vps33 protein. The mammalian class C VPS proteins are predominantly associated with late endosomes/lysosomes, and like their yeast counterparts, may mediate vesicle trafficking steps in the endosome/lysosome pathway.

Interactions

VPS33A has been shown to interact with VPS11.

Clinical

A syndrome has been described that appears to be associated with mutations in this gene. This syndrome has since been named Mucopolysaccharidosis-plus syndrome.

Further reading

• Pevsner J, Hsu SC, Hyde PS, Scheller RH (1997). "Mammalian homologues of yeast vacuolar protein sorting (vps) genes implicated in Golgi-to-lysosome trafficking". Gene. 183 (1–2): 7–14. doi:10.1016/S0378-1119(96)00367-8. PMID 8996080.
• Kim BY, Krämer H, Yamamoto A, Kominami E, Kohsaka S, Akazawa C (2001). "Molecular characterization of mammalian homologues of class C Vps proteins that interact with syntaxin-7". J. Biol. Chem. 276 (31): 29393–402. doi:10.1074/jbc.M101778200. PMID 11382755.
• Suzuki T, Oiso N, Gautam R, Novak EK, Panthier JJ, Suprabha PG, Vida T, Swank RT, Spritz RA (2003). "The mouse organellar biogenesis mutant buff results from a mutation in Vps33a, a homologue of yeast vps33 and Drosophila carnation". Proc. Natl. Acad. Sci. U.S.A. 100 (3): 1146–50. Bibcode:2003PNAS..100.1146S. doi:10.1073/pnas.0237292100. PMC 298741. PMID 12538872.
• Suzuki Y, Yamashita R, Shirota M, Sakakibara Y, Chiba J, Mizushima-Sugano J, Nakai K, Sugano S (2004). "Sequence comparison of human and mouse genes reveals a homologous block structure in the promoter regions". Genome Res. 14 (9): 1711–8. doi:10.1101/gr.2435604. PMC 515316. PMID 15342556.
• Gissen P, Johnson CA, Gentle D, Hurst LD, Doherty AJ, O'Kane CJ, Kelly DA, Maher ER (2005). "Comparative evolutionary analysis of VPS33 homologues: genetic and functional insights". Hum. Mol. Genet. 14 (10): 1261–70. doi:10.1093/hmg/ddi137. PMID 15790593.