ITGA3

Integrin subunit alpha 3 P26006 ITA3_HUMAN
Protein Coding Chr 17 17q21.33 Swiss-Prot reviewed Entrez 3675
Mutations
796
CL 113 · Tissue 673
Samples
426
CL 79 · Tissue 342
Peptides
339
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
Mutations796113673
Samples42679342
Peptides33956287

Function

ITGA3 · Integrin subunit alpha 3

The gene encodes a member of the integrin alpha chain family of proteins. Integrins are heterodimeric integral membrane proteins composed of an alpha chain and a beta chain that function as cell surface adhesion molecules. The encoded preproprotein is proteolytically processed to generate light and heavy chains that comprise the alpha 3 subunit. This subunit joins with a beta 1 subunit to form an integrin that interacts with extracellular matrix proteins including members of the laminin family. Expression of this gene may be correlated with breast cancer metastasis. [provided by RefSeq, Oct 2015].

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
ENST00000320031 P26006 410 310
ENST00000007722 P26006-1 386 304

Gene Properties

Type
Protein Coding
Chromosome
17
Cytoband
17q21.33
Entrez ID
Aliases
CD49CFRP-2GAP-B3GAPB3ILNEBJEB7

Recurrent Mutations

All 310 amino-acid changes on canonical ENST00000320031 · 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 ITGA3 · 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 ITGA3 – 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
Chronic Myelogenous Leukemia
2/25 8%
0/0 0%
Endometrial Carcinoma
5/42 12%
14/612 2%
T-Lymphoblastic Leukemia
1/40 2%
0/0 0%
Colorectal Carcinoma
14/143 10%
59/3239 2%
Glioblastoma
2/98 2%
0/0 0%
Melanoma
6/210 3%
34/1899 2%
Gastric Carcinoma
7/74 9%
24/1809 1%
Gastrointestinal Stromal Tumour
0/0 0%
2/133 2%
Hodgkins Lymphoma
0/16 0%
2/122 2%
Thyroid Gland Carcinoma
0/45 0%
23/1592 1%
Hepatocellular Carcinoma
5/46 11%
23/2210 1%
Ovarian Carcinoma
4/109 4%
9/998 1%
Plasma Cell Myeloma
3/44 7%
1/305 0%
Non-Small Cell Lung Carcinoma
3/304 1%
16/1390 1%
Bladder Carcinoma
0/58 0%
11/956 1%
Small Cell Lung Carcinoma
0/9 0%
8/752 1%
Squamous Cell Lung Carcinoma
1/57 2%
8/810 1%
Germ Cell Tumour
1/25 4%
1/169 1%
Biliary Tract Carcinoma
1/54 2%
9/950 1%
Cervical Carcinoma
0/35 0%
4/422 1%
Esophageal Squamous Cell Carcinoma
1/51 2%
22/2550 1%
Mesothelioma
2/62 3%
0/165 0%
Neuroendocrine Tumour
4/154 3%
1/577 0%
Ewings Sarcoma
2/63 3%
0/262 0%
Other Solid Cancers
1/94 1%
9/1515 1%
Glioma
0/52 0%
12/2127 1%
Non-Cancerous
0/104 0%
5/830 1%
Esophageal Carcinoma
0/23 0%
4/769 1%
Head and Neck Carcinoma
1/85 1%
6/1574 0%
Breast Carcinoma
3/144 2%
11/3264 0%

Mutation Distribution

Where ITGA3 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in ITGA3 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 796 mutations in ITGA3

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