XRCC3

X-ray repair cross complementing 3 O43542 XRCC3_HUMAN
Protein Coding Chr 14 14q32.33 Swiss-Prot reviewed Entrez 7517
Mutations
564
CL 68 · Tissue 490
Samples
131
CL 20 · Tissue 109
Peptides
88
unique mutant peptides
Transcripts
5
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
Mutations56468490
Samples13120109
Peptides881869

Function

XRCC3 · X-ray repair cross complementing 3

This gene encodes a member of the RecA/Rad51-related protein family that participates in homologous recombination to maintain chromosome stability and repair DNA damage. This gene functionally complements Chinese hamster irs1SF, a repair-deficient mutant that exhibits hypersensitivity to a number of different DNA-damaging agents and is chromosomally unstable. A rare microsatellite polymorphism in this gene is associated with cancer in patients of varying radiosensitivity. Alternatively spliced transcript variants encoding the same protein have been identified. [provided by RefSeq, Jul 2008].

Isoforms & Proteins

5 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
ENST00000555055 O43542 134 86
ENST00000352127 O43542 123 79
ENST00000553264 O43542 123 79
ENST00000554913 O43542 123 79
ENST00000554974 G3V3Q2* 61 33

Gene Properties

Type
Protein Coding
Chromosome
14
Cytoband
14q32.33
Entrez ID
Aliases
CMM6

Recurrent Mutations

All 86 amino-acid changes on canonical ENST00000555055 · 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 XRCC3 · 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 XRCC3 – 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
Gastrointestinal Stromal Tumour
0/0 0%
3/133 2%
Endometrial Carcinoma
3/42 7%
3/612 0%
Bladder Carcinoma
1/58 2%
6/956 1%
Cervical Carcinoma
0/35 0%
3/422 1%
Esophageal Squamous Cell Carcinoma
1/51 2%
14/2550 1%
Other Solid Cancers
1/94 1%
8/1515 1%
Thyroid Gland Carcinoma
0/45 0%
9/1592 1%
Non-Small Cell Lung Carcinoma
5/304 2%
4/1390 0%
Colorectal Carcinoma
2/143 1%
14/3239 0%
Squamous Cell Lung Carcinoma
1/57 2%
3/810 0%
Non-Cancerous
0/104 0%
4/830 0%
Biliary Tract Carcinoma
0/54 0%
4/950 0%
Gastric Carcinoma
1/74 1%
6/1809 0%
Ovarian Carcinoma
1/109 1%
3/998 0%
Ewings Sarcoma
0/63 0%
1/262 0%
Plasma Cell Myeloma
1/44 2%
0/305 0%
Neuroendocrine Tumour
1/154 1%
1/577 0%
Pancreatic Carcinoma
1/89 1%
2/1611 0%
Hepatocellular Carcinoma
0/46 0%
4/2210 0%
Prostate Carcinoma
0/13 0%
3/2105 0%
Esophageal Carcinoma
0/23 0%
1/769 0%
Other Sarcomas
0/69 0%
1/699 0%
Small Cell Lung Carcinoma
0/9 0%
1/752 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
3/2534 0%
B-Lymphoblastic Leukemia
1/55 2%
2/2640 0%
Melanoma
0/210 0%
2/1899 0%
Glioma
0/52 0%
2/2127 0%
Neuroblastoma
0/87 0%
1/1331 0%
Head and Neck Carcinoma
0/85 0%
1/1574 0%
Breast Carcinoma
0/144 0%
2/3264 0%

Mutation Distribution

Where XRCC3 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in XRCC3 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 564 mutations in XRCC3

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