Aliases for CHMP2A Gene
- Charged Multivesicular Body Protein 2A 2 3 5
- CHMP2 2 3 4
- Vacuolar Protein Sorting-Associated Protein 2-1 3 4
- Putative Breast Adenocarcinoma Marker (32kD) 2 3
- Putative Breast Adenocarcinoma Marker BC-2 3 4
- Charged Multivesicular Body Protein 2a 3 4
- Chromatin Modifying Protein 2A 2 3
- Vps2-1 3 4
- VPS2A 2 3
External Ids for CHMP2A Gene
Previous GeneCards Identifiers for CHMP2A Gene
CHMP2A belongs to the chromatin-modifying protein/charged multivesicular body protein (CHMP) family. These proteins are components of ESCRT-III (endosomal sorting complex required for transport III), a complex involved in degradation of surface receptor proteins and formation of endocytic multivesicular bodies (MVBs). Some CHMPs have both nuclear and cytoplasmic/vesicular distributions, and one such CHMP, CHMP1A (MIM 164010), is required for both MVB formation and regulation of cell cycle progression (Tsang et al., 2006 [PubMed 16730941]).[supplied by OMIM, Mar 2008]
GeneCards Summary for CHMP2A Gene
CHMP2A (Charged Multivesicular Body Protein 2A) is a Protein Coding gene. Diseases associated with CHMP2A include Viral Gastritis and Breast Adenocarcinoma. Among its related pathways are Budding and maturation of HIV virion and Clathrin derived vesicle budding. Gene Ontology (GO) annotations related to this gene include protein domain specific binding and phosphatidylcholine binding. An important paralog of this gene is CHMP2B.
UniProtKB/Swiss-Prot Summary for CHMP2A Gene
Probable core component of the endosomal sorting required for transport complex III (ESCRT-III) which is involved in multivesicular bodies (MVBs) formation and sorting of endosomal cargo proteins into MVBs. MVBs contain intraluminal vesicles (ILVs) that are generated by invagination and scission from the limiting membrane of the endosome and mostly are delivered to lysosomes enabling degradation of membrane proteins, such as stimulated growth factor receptors, lysosomal enzymes and lipids. The MVB pathway appears to require the sequential function of ESCRT-O, -I,-II and -III complexes. ESCRT-III proteins mostly dissociate from the invaginating membrane before the ILV is released. The ESCRT machinery also functions in topologically equivalent membrane fission events, such as the terminal stages of cytokinesis (PubMed:21310966). Together with SPAST, the ESCRT-III complex promotes nuclear envelope sealing and mitotic spindle disassembly during late anaphase (PubMed:26040712). ESCRT-III proteins are believed to mediate the necessary vesicle extrusion and/or membrane fission activities, possibly in conjunction with the AAA ATPase VPS4.
(Microbial infection) The ESCRT machinery functions in topologically equivalent membrane fission events, such as the budding of enveloped viruses (HIV-1 and other lentiviruses). Involved in HIV-1 p6- and p9-dependent virus release.