GJC1

Gap junction protein gamma 1 P36383 CXG1_HUMAN
Protein Coding Chr 17 17q21.31 Swiss-Prot reviewed Entrez 10052
Mutations
624
CL 124 · Tissue 489
Samples
212
CL 54 · Tissue 153
Peptides
167
unique mutant peptides
Transcripts
4
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
Mutations624124489
Samples21254153
Peptides16732138

Function

GJC1 · Gap junction protein gamma 1

This gene is a member of the connexin gene family. The encoded protein is a component of gap junctions, which are composed of arrays of intercellular channels that provide a route for the diffusion of low molecular weight materials from cell to cell. Alternatively spliced transcript variants encoding the same isoform have been described. [provided by RefSeq, Jul 2008].

Isoforms & Proteins

4 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
ENST00000592524 P36383 221 160
ENST00000330514 P36383 198 156
ENST00000590758 P36383 198 156
ENST00000578689 Q8N144 7 7

Gene Properties

Type
Protein Coding
Chromosome
17
Cytoband
17q21.31
Entrez ID
Aliases
CX45GJA7

Recurrent Mutations

All 160 amino-acid changes on canonical ENST00000592524 · 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 GJC1 · 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 GJC1 – 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
9/40 22%
0/0 0%
Oral Cavity Carcinoma
2/54 4%
0/0 0%
Endometrial Carcinoma
2/42 5%
13/612 2%
Non-Small Cell Lung Carcinoma
13/304 4%
13/1390 1%
Osteosarcoma
3/45 7%
0/166 0%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Colorectal Carcinoma
6/143 4%
31/3239 1%
Melanoma
3/210 1%
17/1899 1%
Plasma Cell Myeloma
1/44 2%
2/305 1%
Other Solid Cancers
0/94 0%
12/1515 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Squamous Cell Lung Carcinoma
0/57 0%
5/810 1%
Gastric Carcinoma
2/74 3%
8/1809 0%
Germ Cell Tumour
0/25 0%
1/169 1%
Head and Neck Carcinoma
2/85 2%
6/1574 0%
Hepatocellular Carcinoma
0/46 0%
10/2210 0%
Burkitts Lymphoma
1/32 3%
0/196 0%
Cervical Carcinoma
1/35 3%
1/422 0%
Other Sarcomas
2/69 3%
0/699 0%
Kidney Carcinoma
0/85 0%
5/1862 0%
Esophageal Carcinoma
0/23 0%
2/769 0%
Prostate Carcinoma
2/13 15%
3/2105 0%
Glioma
0/52 0%
5/2127 0%
Medulloblastoma
0/0 0%
1/450 0%
Bladder Carcinoma
1/58 2%
1/956 0%
Pancreatic Carcinoma
0/89 0%
3/1611 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
4/2550 0%
Breast Carcinoma
2/144 1%
3/3264 0%
Neuroendocrine Tumour
1/154 1%
0/577 0%
Small Cell Lung Carcinoma
0/9 0%
1/752 0%

Mutation Distribution

Where GJC1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in GJC1 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 624 mutations in GJC1

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