XIAP

X-linked inhibitor of apoptosis P98170 XIAP_HUMAN
Protein Coding Chr X Xq25 Swiss-Prot reviewed Entrez 331
Mutations
425
CL 58 · Tissue 364
Samples
211
CL 37 · Tissue 173
Peptides
176
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
Mutations42558364
Samples21137173
Peptides17623156

Function

XIAP · X-linked inhibitor of apoptosis

This gene encodes a protein that belongs to a family of apoptotic suppressor proteins. Members of this family share a conserved motif termed, baculovirus IAP repeat, which is necessary for their anti-apoptotic function. This protein functions through binding to tumor necrosis factor receptor-associated factors TRAF1 and TRAF2 and inhibits apoptosis induced by menadione, a potent inducer of free radicals, and interleukin 1-beta converting enzyme. This protein also inhibits at least two members of the caspase family of cell-death proteases, caspase-3 and caspase-7. Mutations in this gene are the cause of X-linked lymphoproliferative syndrome. Alternate splicing results in multiple transcript variants. Pseudogenes of this gene are found on chromosomes 2 and 11.[provided by RefSeq, Feb 2011].

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
ENST00000371199 P98170 224 176
ENST00000355640 P98170 201 167

Gene Properties

Type
Protein Coding
Chromosome
X
Cytoband
Xq25
Entrez ID
Aliases
API3BIRC4IAP-3ILP1MIHAXLP2

Recurrent Mutations

All 176 amino-acid changes on canonical ENST00000371199 · 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 XIAP · 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 XIAP – 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
2/40 5%
0/0 0%
Endometrial Carcinoma
6/42 14%
22/612 4%
Squamous Cell Lung Carcinoma
1/57 2%
11/810 1%
Melanoma
2/210 1%
24/1899 1%
Colorectal Carcinoma
7/143 5%
32/3239 1%
Non-Small Cell Lung Carcinoma
9/304 3%
9/1390 1%
Other Solid Cancers
2/94 2%
10/1515 1%
Cervical Carcinoma
0/35 0%
3/422 1%
Neuroendocrine Tumour
2/154 1%
2/577 0%
Ovarian Carcinoma
0/109 0%
6/998 1%
Gastric Carcinoma
0/74 0%
8/1809 0%
Bladder Carcinoma
0/58 0%
4/956 0%
Small Cell Lung Carcinoma
0/9 0%
3/752 0%
Glioma
2/52 4%
6/2127 0%
Biliary Tract Carcinoma
0/54 0%
3/950 0%
Other Sarcomas
0/69 0%
2/699 0%
Head and Neck Carcinoma
1/85 1%
3/1574 0%
Medulloblastoma
0/0 0%
1/450 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
5/2550 0%
Hepatocellular Carcinoma
0/46 0%
4/2210 0%
B-Lymphoblastic Leukemia
2/55 4%
2/2640 0%
Kidney Carcinoma
0/85 0%
3/1862 0%
Breast Carcinoma
0/144 0%
5/3264 0%
Pancreatic Carcinoma
0/89 0%
2/1611 0%
Non-Cancerous
0/104 0%
1/830 0%
Prostate Carcinoma
0/13 0%
2/2105 0%
Other Blood Cancers
1/61 2%
0/2725 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
1/2534 0%

Mutation Distribution

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

Mutation counts by tissue
Mutation Distribution

How many mutations in XIAP 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 425 mutations in XIAP

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