FGA

Fibrinogen alpha chain P02671 FIBA_HUMAN
Protein Coding Chr 4 4q31.3 Swiss-Prot reviewed Entrez 2243
Mutations
853
CL 129 · Tissue 714
Samples
764
CL 117 · Tissue 638
Peptides
555
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
Mutations853129714
Samples764117638
Peptides55577492

Function

FGA · Fibrinogen alpha chain

This gene encodes the alpha subunit of the coagulation factor fibrinogen, which is a component of the blood clot. Following vascular injury, the encoded preproprotein is proteolytically processed by thrombin during the conversion of fibrinogen to fibrin. Mutations in this gene lead to several disorders, including dysfibrinogenemia, hypofibrinogenemia, afibrinogenemia and renal amyloidosis. Alternative splicing results in multiple transcript variants, at least one of which encodes an isoform that undergoes proteolytic processing. [provided by RefSeq, Jan 2016].

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
ENST00000403106 P02671-2 643 404
ENST00000651975 P02671 210 151

Gene Properties

Type
Protein Coding
Chromosome
4
Cytoband
4q31.3
Entrez ID
Aliases
AMYLD2Fib2

Recurrent Mutations

All 404 amino-acid changes on canonical ENST00000403106 · 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 FGA · 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 FGA – 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
5/40 12%
0/0 0%
Melanoma
13/210 6%
127/1899 7%
Endometrial Carcinoma
4/42 10%
33/612 5%
Gastrointestinal Stromal Tumour
0/0 0%
5/133 4%
Non-Small Cell Lung Carcinoma
21/304 7%
35/1390 3%
Other Solid Cancers
2/94 2%
51/1515 3%
Colorectal Carcinoma
20/143 14%
69/3239 2%
Unknown
0/10 0%
1/29 3%
Small Cell Lung Carcinoma
0/9 0%
19/752 3%
Squamous Cell Lung Carcinoma
1/57 2%
20/810 2%
Plasma Cell Myeloma
2/44 5%
6/305 2%
Chondrosarcoma
0/14 0%
2/75 3%
Neuroendocrine Tumour
9/154 6%
7/577 1%
Bladder Carcinoma
0/58 0%
22/956 2%
Glioblastoma
2/98 2%
0/0 0%
Cervical Carcinoma
0/35 0%
9/422 2%
Rhabdomyosarcoma
2/33 6%
2/171 1%
Osteosarcoma
2/45 4%
2/166 1%
Oral Cavity Carcinoma
1/54 2%
0/0 0%
Gastric Carcinoma
2/74 3%
31/1809 2%
Hepatocellular Carcinoma
1/46 2%
37/2210 2%
Pheochromocytoma and Paraganglioma
0/0 0%
1/71 1%
Glioma
1/52 2%
24/2127 1%
Head and Neck Carcinoma
3/85 4%
15/1574 1%
Other Sarcomas
0/69 0%
8/699 1%
Germ Cell Tumour
2/25 8%
0/169 0%
Ovarian Carcinoma
4/109 4%
7/998 1%
Burkitts Lymphoma
2/32 6%
0/196 0%
Prostate Carcinoma
0/13 0%
17/2105 1%
Non-Cancerous
1/104 1%
6/830 1%

Mutation Distribution

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

Mutation counts by tissue
Mutation Distribution

How many mutations in FGA 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 50 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 853 mutations in FGA

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