FAP

Fibroblast activation protein alpha Q12884 SEPR_HUMAN
Protein Coding Chr 2 2q24.2 Swiss-Prot reviewed Entrez 2191
Mutations
999
CL 165 · Tissue 820
Samples
487
CL 90 · Tissue 388
Peptides
394
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
Mutations999165820
Samples48790388
Peptides39466331

Function

FAP · Fibroblast activation protein alpha

The protein encoded by this gene is a homodimeric integral membrane gelatinase belonging to the serine protease family. It is selectively expressed in reactive stromal fibroblasts of epithelial cancers, granulation tissue of healing wounds, and malignant cells of bone and soft tissue sarcomas. This protein is thought to be involved in the control of fibroblast growth or epithelial-mesenchymal interactions during development, tissue repair, and epithelial carcinogenesis. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2014].

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
ENST00000188790 Q12884 548 384
ENST00000443424 B4DLR2* 451 341

Gene Properties

Type
Protein Coding
Chromosome
2
Cytoband
2q24.2
Entrez ID
Aliases
DPPIVFAPAFAPalphaSIMP

Recurrent Mutations

All 384 amino-acid changes on canonical ENST00000188790 · 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 FAP · 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 FAP – 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
4/40 10%
0/0 0%
Chronic Myelogenous Leukemia
2/25 8%
0/0 0%
Acute Myeloid Leukemia
4/90 4%
0/0 0%
Melanoma
6/210 3%
74/1899 4%
Endometrial Carcinoma
1/42 2%
23/612 4%
Squamous Cell Lung Carcinoma
0/57 0%
27/810 3%
Hodgkins Lymphoma
4/16 25%
0/122 0%
Non-Small Cell Lung Carcinoma
17/304 6%
28/1390 2%
Unknown
0/10 0%
1/29 3%
Gastrointestinal Stromal Tumour
0/0 0%
3/133 2%
Burkitts Lymphoma
5/32 16%
0/196 0%
Small Cell Lung Carcinoma
0/9 0%
16/752 2%
Other Solid Cancers
2/94 2%
31/1515 2%
Glioblastoma
2/98 2%
0/0 0%
Oral Cavity Carcinoma
1/54 2%
0/0 0%
Neuroendocrine Tumour
4/154 3%
8/577 1%
Gastric Carcinoma
2/74 3%
24/1809 1%
Bladder Carcinoma
2/58 3%
12/956 1%
Colorectal Carcinoma
15/143 10%
30/3239 1%
Head and Neck Carcinoma
1/85 1%
16/1574 1%
Rhabdomyosarcoma
0/33 0%
2/171 1%
Pancreatic Carcinoma
1/89 1%
14/1611 1%
Meningioma
1/3 33%
1/252 0%
Cervical Carcinoma
0/35 0%
3/422 1%
Breast Carcinoma
3/144 2%
19/3264 1%
Glioma
2/52 4%
11/2127 1%
Other Sarcomas
2/69 3%
1/699 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
10/2550 0%
Esophageal Carcinoma
0/23 0%
3/769 0%
Hepatocellular Carcinoma
0/46 0%
8/2210 0%

Mutation Distribution

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

Mutation counts by tissue
Mutation Distribution

How many mutations in FAP 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 999 mutations in FAP

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