Tbio CHMP1A Charged multivesicular body protein 1a

Protein Summary

Description

Probable peripherally associated 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 and the budding of enveloped viruses (HIV-1 and other lentiviruses). ESCRT-III proteins are believed to mediate the necessary vesicle extrusion and/or membrane fission activities, possibly in conjunction with the AAA ATPase VPS4. Involved in cytokinesis. Involved in recruiting VPS4A and/or VPS4B to the midbody of dividing cells. May also be involved in chromosome condensation. Targets the Polycomb group (PcG) protein BMI1/PCGF4 to regions of condensed chromatin. May play a role in stable cell cycle progression and in PcG gene silencing. This gene encodes a member of the CHMP/Chmp family of proteins which are involved in multivesicular body sorting of proteins to the interiors of lysosomes. The initial prediction of the protein sequence encoded by this gene suggested that the encoded protein was a metallopeptidase. The nomenclature has been updated recently to reflect the correct biological function of this encoded protein. Several transcripts encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2012]

Uniprot Accession IDs

• Q9HD42
• A2RU09
• Q14468
• Q15779
• Q96G31

Gene Name

• CHMP1A

Ensembl ID

• ENST00000397901
• ENSP00000380998
• ENSG00000131165

Symbol

• CHMP1
• KIAA0047
• PCOLN3
• PRSM1
• PCH8
• CHMP1
• PRSM1
• PCOLN3
• VPS46A
• VPS46-1

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
histone modification site profile	0.91
biological process	0.84
virus perturbation	0.79
cellular component	0.76
interacting protein	0.74

Protein Classes

No PANTHER Classes or DTO Classes found

IDG Development Level Summary

Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 29.48   (req: < 5)

Gene RIFs: 11   (req: <= 3)

Antibodies: 214   (req: <= 50)

Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 29.48   (req: >= 5)

Gene RIFs: 11   (req: > 3)

Antibodies: 214   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 23

Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 0

Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0