CHMP3
protein-codingcharged multivesicular body protein 3, the group of Charged multivesicular body proteins|ESCRT-III
Gene summary
This gene encodes a protein that sorts transmembrane proteins into lysosomes/vacuoles via the multivesicular body (MVB) pathway. This protein, along with other soluble coiled-coil containing proteins, forms part of the ESCRT-III protein complex that binds to the endosomal membrane and recruits additional cofactors for protein sorting into the MVB. This protein may also co-immunoprecipitate with a member of the IFG-binding protein superfamily. Alternative splicing results in multiple transcript variants. Read-through transcription also exists between this gene and the upstream ring finger protein 103 (RNF103) gene. [provided by RefSeq, Nov 2010]
- VPS24
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~60.0 kbGenCC Phenotypes & Disease Associations
Curated gene-disease validity assertions and inheritance patterns
No GenCC data available for this gene.
ClinVar Associated Diseases & Phenotypes
Reported disease conditions connected to CHMP3 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_016079.4. Only rare variants are included.
We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.
Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.
| Effect | PathogenicP | Likely pathogenicLP | VUS | Likely benignLB | BenignB | Sum |
|---|---|---|---|---|---|---|
| synonymous | 0 | |||||
| missense | 14 | 14 | ||||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 0 | |||||
| Total | 0 | 0 | 14 | 0 | 0 | 14 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_057163.1 | 6 | MANE Select | |
| Ensembl | ENSP00000263856.4 | 6 | MANE Select | |
| RefSeq | NP_001005753.1 | 4 | Standard | |
| RefSeq | NP_001180446.1 | 6 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Endocytosis - Homo sapiens (human)
- Necroptosis - Homo sapiens (human)
- Disease
- Vesicle-mediated transport
- Membrane Trafficking
Biological Process
- apoptotic process
- nucleus organization
- mitotic metaphase plate congression
- regulation of centrosome duplication
- protein transport
Molecular Function
- protein binding
- phosphatidylcholine binding
- protein homodimerization activity
- ubiquitin-specific protease binding
Cellular Component
- ESCRT III complex
- late endosome
- multivesicular body
- cytosol
- plasma membrane
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000439940
- Coding exons
- 6
- Length
- 217692
- Individuals with no LoFs
- 125736
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 12
- Defined
- 125748
- p
- 0.0000477
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 0.801 | 108 | 134 | 0.805 | 0.00000649 | 1668 |
| Missense (PolyPhen) | 12 | 22.037 | 0.54454 | 282 | ||
| Synonymous | 0.984 | 36 | 44.3 | 0.812 | 0.00000225 | 434 |
| Loss of Function | 1.86 | 6 | 13.3 | 0.450 | 7.38e-7 | 163 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0 | 0.0 | absent |
| Latino/Admixed American | 0.000088 | 0.000087 | rare |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0.00016 | 0.00016 | rare |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0.000045 | 0.000044 | rare |
| South Asian | 0 | 0.0 | absent |
| Other | 0.00018 | 0.00016 | rare |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: 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 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. Selectively binds to phosphatidylinositol 3,5-bisphosphate PtdIns(3,5)P2 and PtdIns(3,4)P2 in preference to other phosphoinositides tested. Involved in late stages of cytokinesis. Plays a role in endosomal sorting/trafficking of EGF receptor. Isoform 2 prevents stress- mediated cell death and accumulation of reactive oxygen species when expressed in yeast cells. {ECO:0000269|PubMed:14505570, ECO:0000269|PubMed:15707591, ECO:0000269|PubMed:16740483, ECO:0000269|PubMed:17331679, ECO:0000269|PubMed:18076377}.;
Recessive Scores
- pRec
- 0.108
Intolerance Scores
- RVIS EVS
- -0.27
- RVIS percentile EVS
- 33.97
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- E
- Essential (gene trap)
- E
- Indispensability pred.
- N
- Indispensability score
- 0.114
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |