CLCA2

Chloride channel accessory 2 Q9UQC9 CLCA2_HUMAN
Protein Coding Chr 1 1p22.3 Swiss-Prot reviewed Entrez 9635
Mutations
461
CL 99 · Tissue 358
Samples
442
CL 97 · Tissue 341
Peptides
355
unique mutant peptides
Transcripts
1
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
Mutations46199358
Samples44297341
Peptides35559297

Function

CLCA2 · Chloride channel accessory 2

This gene encodes a member of the calcium-activated chloride channel regulator (CLCR) family of proteins. Members of this family regulate the transport of chloride across the plasma membrane. The encoded protein is autoproteolytically processed to generate N- and C- terminal fragments. Expression of this gene is upregulated by the tumor suppressor protein p53 in response to DNA damage. In breast cancer, expression of this gene is downregulated and the encoded protein may inhibit migration and invasion while promoting mesenchymal-to-epithelial transition in cancer cell lines. [provided by RefSeq, Sep 2016].

Isoforms & Proteins

1 transcript · 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
ENST00000370565 Q9UQC9 461 355

Gene Properties

Type
Protein Coding
Chromosome
1
Cytoband
1p22.3
Entrez ID
Aliases
CACCCACC3CLCRG2CaCC-3

Recurrent Mutations

All 355 amino-acid changes on canonical ENST00000370565 · 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 CLCA2 · 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 CLCA2 – 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
Acute Myeloid Leukemia
7/90 8%
0/0 0%
T-Lymphoblastic Leukemia
3/40 8%
0/0 0%
Endometrial Carcinoma
5/42 12%
28/612 5%
T-Cell Non-Hodgkins Lymphoma
1/26 4%
0/0 0%
Non-Small Cell Lung Carcinoma
11/304 4%
45/1390 3%
Melanoma
5/210 2%
60/1899 3%
Oral Cavity Carcinoma
1/54 2%
0/0 0%
Squamous Cell Lung Carcinoma
3/57 5%
13/810 2%
Adrenocortical Carcinoma
2/3 67%
0/112 0%
Other Solid Cancers
4/94 4%
22/1515 1%
Germ Cell Tumour
3/25 12%
0/169 0%
Bladder Carcinoma
1/58 2%
13/956 1%
Cervical Carcinoma
2/35 6%
4/422 1%
Gastric Carcinoma
0/74 0%
23/1809 1%
Neuroendocrine Tumour
4/154 3%
4/577 1%
Hepatocellular Carcinoma
2/46 4%
22/2210 1%
Colorectal Carcinoma
16/143 11%
19/3239 1%
Ewings Sarcoma
2/63 3%
1/262 0%
Small Cell Lung Carcinoma
0/9 0%
7/752 1%
Ovarian Carcinoma
2/109 2%
7/998 1%
Medulloblastoma
0/0 0%
3/450 1%
Non-Cancerous
2/104 2%
4/830 0%
Biliary Tract Carcinoma
1/54 2%
5/950 1%
Head and Neck Carcinoma
2/85 2%
8/1574 1%
Esophageal Carcinoma
1/23 4%
3/769 0%
Esophageal Squamous Cell Carcinoma
1/51 2%
11/2550 0%
Breast Carcinoma
2/144 1%
11/3264 0%
Glioma
1/52 2%
7/2127 0%
Thyroid Gland Carcinoma
0/45 0%
6/1592 0%
Kidney Carcinoma
1/85 1%
5/1862 0%

Mutation Distribution

Where CLCA2 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in CLCA2 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 461 mutations in CLCA2

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