CHMP2A

Charged multivesicular body protein 2A O43633 CHM2A_HUMAN
Protein Coding Chr 19 19q13.43 Swiss-Prot reviewed Entrez 27243
Mutations
309
CL 47 · Tissue 261
Samples
106
CL 19 · Tissue 86
Peptides
76
unique mutant peptides
Transcripts
3
isoforms mutated

Stats by Source

Total, split by cell line (COSMIC CL / DepMap / PubMed) vs tissue (COSMIC primary tissue)

How the counts split by source
Stats by Source

Total = all mutations for this gene across every source.

Cell line = COSMIC Cell Lines Project + DepMap + PubMed.

Tissue = COSMIC primary-tissue (patient tumour) samples.

Total can exceed cell line + tissue: COSMIC tissue-derived models sit only in global, and a peptide can be shared across both.

TotalCell lineTissue
Mutations30947261
Samples1061986
Peptides761364

Function

CHMP2A · Charged multivesicular body protein 2A

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].

Isoforms & Proteins

3 transcripts · UniProt mapping is sequence-verified (AA-safe)

About the isoform mapping
Isoforms & Proteins

Each Ensembl transcript (ENST) this gene is mutated on, with its matched UniProt accession.

The mapping is sequence-verified: the UniProt sequence is identical to the transcript translation, so amino-acid positions line up exactly. A * marks an unreviewed (TrEMBL) entry.

Counts are mutations and unique mutant peptides on each transcript.

TranscriptUniProtMutationsPeptides
ENST00000312547 O43633 111 76
ENST00000600118 O43633 99 73
ENST00000601220 O43633 99 73

Gene Properties

Type
Protein Coding
Chromosome
19
Cytoband
19q13.43
Entrez ID
Aliases
BC-2BC2CHMP2VPS2VPS2A

Recurrent Mutations

All 76 amino-acid changes on canonical ENST00000312547 · needle height = samples · drag the mini-map to zoom

What this lollipop shows
Recurrent Mutations

A lollipop / needle plot – the standard way to show recurrent mutations along a protein (as used by cBioPortal and MutationMapper).

X-axis = amino-acid position in the protein.

Needle height & head size = how often that exact amino-acid change was observed (its recurrence). Tall/large heads are mutational hotspots.

The most recurrent changes are labelled; hover any needle for the change, position and counts.

Mutation frequency across cancer types

% of samples with a missense/complex mutation in CHMP2A · cell line vs tissue

How this frequency is counted
Cancer-type mutation frequency

For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in CHMP2A – counted as distinct samples (a sample counts once no matter how many mutations it has).

Split into cell line and tissue; each cell shows mutated / total and the percentage. Cohorts with <20 samples are omitted. Ordered by combined frequency.

Cancer typeCell linesTissue samples
T-Lymphoblastic Leukemia
2/40 5%
0/0 0%
Endometrial Carcinoma
1/42 2%
8/612 1%
Bladder Carcinoma
0/58 0%
9/956 1%
Other Sarcomas
1/69 1%
3/699 0%
Non-Small Cell Lung Carcinoma
5/304 2%
2/1390 0%
Biliary Tract Carcinoma
0/54 0%
4/950 0%
Melanoma
1/210 0%
7/1899 0%
Colorectal Carcinoma
4/143 3%
9/3239 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
8/2550 0%
Gastric Carcinoma
0/74 0%
5/1809 0%
Small Cell Lung Carcinoma
0/9 0%
2/752 0%
Squamous Cell Lung Carcinoma
0/57 0%
2/810 0%
Medulloblastoma
0/0 0%
1/450 0%
Hepatocellular Carcinoma
0/46 0%
5/2210 0%
Non-Cancerous
0/104 0%
2/830 0%
Breast Carcinoma
4/144 3%
3/3264 0%
Neuroblastoma
0/87 0%
3/1331 0%
Other Solid Cancers
0/94 0%
3/1515 0%
Head and Neck Carcinoma
0/85 0%
3/1574 0%
Esophageal Carcinoma
0/23 0%
1/769 0%
Thyroid Gland Carcinoma
0/45 0%
2/1592 0%
Ovarian Carcinoma
0/109 0%
1/998 0%
Glioma
0/52 0%
2/2127 0%
Kidney Carcinoma
0/85 0%
1/1862 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
1/2534 0%
B-Lymphoblastic Leukemia
1/55 2%
0/2640 0%

Mutation Distribution

Where CHMP2A is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in CHMP2A were found in each tissue, across the whole database.

Each bar is a tissue (cell-line and tissue names are merged to the standard tissue), split into cell line and tissue (patient tumour) contributions.

This shows the cancer-context where this gene is recurrently altered.

GTEx Expression

Median TPM across 54 healthy tissues

GTEx Portal ↗
About the expression data
GTEx Expression

Median gene expression (TPM) in normal, non-cancer human tissues from the GTEx project.

Useful for judging tumour specificity – a strong neoantigen target ideally comes from a gene with low expression in healthy tissues.

Scroll or drag the mini-axis below the chart to browse all tissues.

Mutations

All 309 mutations in CHMP2A

About the mutation list
Mutations

Every mutation record for this gene, across all samples and sources.

The Sample column links to the cell line (cell-line samples) or the tissue type (tissue samples).

Use the Type / Source filters, the search box, and column sorting to explore; each CAN-IMMUNE ID opens the full mutation & peptide view.

IDSampleTranscriptAA Change CDSTypeSourceMutant PeptideWild-type Peptide