CTAG2

Cancer/testis antigen 2 O75638 CTAG2_HUMAN
Protein Coding Chr X Xq28 Swiss-Prot reviewed Entrez 30848
Mutations
272
CL 40 · Tissue 227
Samples
180
CL 31 · Tissue 146
Peptides
136
unique mutant peptides
Transcripts
2
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
Mutations27240227
Samples18031146
Peptides13628115

Function

CTAG2 · Cancer/testis antigen 2

This gene encodes an autoimmunogenic tumor antigen that belongs to the ESO/LAGE family of cancer-testis antigens. This protein is expressed in a wide array of cancers including melanoma, breast cancer, bladder cancer and prostate cancer. This protein is also expressed in normal testis tissue. An alternative open reading frame product of this gene has been described in PMID:10399963. This alternate protein, termed CAMEL, is a tumor antigen that is recognized by melanoma-specific cytotoxic T-lymphocytes. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Sep 2013].

Isoforms & Proteins

2 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
ENST00000247306 O75638 152 108
ENST00000369585 O75638-2 120 87

Gene Properties

Type
Protein Coding
Chromosome
X
Cytoband
Xq28
Entrez ID
Aliases
CAMELCT2CT6.2CT6.2aCT6.2bESO2

Recurrent Mutations

All 108 amino-acid changes on canonical ENST00000247306 · 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 CTAG2 · 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 CTAG2 – 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
1/40 2%
0/0 0%
Germ Cell Tumour
2/25 8%
2/169 1%
Endometrial Carcinoma
1/42 2%
9/612 1%
Small Cell Lung Carcinoma
1/9 11%
8/752 1%
Squamous Cell Lung Carcinoma
0/57 0%
10/810 1%
Chondrosarcoma
1/14 7%
0/75 0%
Ovarian Carcinoma
3/109 3%
9/998 1%
Melanoma
0/210 0%
22/1899 1%
Adrenocortical Carcinoma
1/3 33%
0/112 0%
Colorectal Carcinoma
7/143 5%
17/3239 1%
Non-Small Cell Lung Carcinoma
3/304 1%
9/1390 1%
Neuroendocrine Tumour
2/154 1%
3/577 1%
Other Sarcomas
2/69 3%
3/699 0%
Gastric Carcinoma
1/74 1%
11/1809 1%
Other Solid Cancers
0/94 0%
8/1515 1%
Bladder Carcinoma
0/58 0%
5/956 1%
Rhabdomyosarcoma
1/33 3%
0/171 0%
Mesothelioma
1/62 2%
0/165 0%
Pancreatic Carcinoma
2/89 2%
5/1611 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Medulloblastoma
0/0 0%
1/450 0%
Hepatocellular Carcinoma
0/46 0%
4/2210 0%
Thyroid Gland Carcinoma
0/45 0%
3/1592 0%
Glioma
1/52 2%
3/2127 0%
Breast Carcinoma
0/144 0%
5/3264 0%
Esophageal Carcinoma
0/23 0%
1/769 0%
Head and Neck Carcinoma
0/85 0%
2/1574 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
3/2534 0%
Biliary Tract Carcinoma
0/54 0%
1/950 0%
Prostate Carcinoma
0/13 0%
2/2105 0%

Mutation Distribution

Where CTAG2 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in CTAG2 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 2 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 272 mutations in CTAG2

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