FIP1L1

Factor interacting with PAPOLA and CPSF1 Q6UN15 FIP1_HUMAN
Protein Coding Chr 4 4q12 Swiss-Prot reviewed Entrez 81608
Mutations
988
CL 83 · Tissue 896
Samples
291
CL 47 · Tissue 242
Peptides
268
unique mutant peptides
Transcripts
4
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
Mutations98883896
Samples29147242
Peptides26835237

Function

FIP1L1 · Factor interacting with PAPOLA and CPSF1

This gene encodes a subunit of the CPSF (cleavage and polyadenylation specificity factor) complex that polyadenylates the 3' end of mRNA precursors. This gene, the homolog of yeast Fip1 (factor interacting with PAP), binds to U-rich sequences of pre-mRNA and stimulates poly(A) polymerase activity. Its N-terminus contains a PAP-binding site and its C-terminus an RNA-binding domain. An interstitial chromosomal deletion on 4q12 creates an in-frame fusion of human genes FIP1L1 and PDGFRA (platelet-derived growth factor receptor, alpha). The FIP1L1-PDGFRA fusion gene encodes a constitutively activated tyrosine kinase that joins the first 233 amino acids of FIP1L1 to the last 523 amino acids of PDGFRA. This gene fusion and chromosomal deletion is the cause of some forms of idiopathic hypereosinophilic syndrome (HES). This syndrome, recently reclassified as chronic eosinophilic leukemia (CEL), is responsive to treatment with tyrosine kinase inhibitors. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Oct 2008].

Isoforms & Proteins

4 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
ENST00000337488 Q6UN15 305 226
ENST00000358575 Q6UN15-5 272 212
ENST00000306932 Q6UN15-3 249 198
ENST00000507922 Q6UN15-4 162 132

Gene Properties

Type
Protein Coding
Chromosome
4
Cytoband
4q12
Entrez ID
Aliases
FIP1RhehFip1

Recurrent Mutations

All 226 amino-acid changes on canonical ENST00000337488 · 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 FIP1L1 · 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 FIP1L1 – 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
3/25 12%
0/0 0%
Endometrial Carcinoma
3/42 7%
15/612 2%
Plasma Cell Myeloma
4/44 9%
2/305 1%
Melanoma
5/210 2%
28/1899 1%
Non-Small Cell Lung Carcinoma
4/304 1%
18/1390 1%
Squamous Cell Lung Carcinoma
0/57 0%
10/810 1%
Glioblastoma
1/98 1%
0/0 0%
Colorectal Carcinoma
7/143 5%
25/3239 1%
Small Cell Lung Carcinoma
0/9 0%
7/752 1%
Burkitts Lymphoma
2/32 6%
0/196 0%
Bladder Carcinoma
0/58 0%
8/956 1%
Esophageal Squamous Cell Carcinoma
2/51 4%
18/2550 1%
Non-Cancerous
2/104 2%
5/830 1%
Other Solid Cancers
1/94 1%
11/1515 1%
Gastric Carcinoma
2/74 3%
12/1809 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Hepatocellular Carcinoma
4/46 9%
9/2210 0%
Head and Neck Carcinoma
1/85 1%
8/1574 1%
Osteosarcoma
0/45 0%
1/166 1%
Breast Carcinoma
2/144 1%
14/3264 0%
Prostate Carcinoma
0/13 0%
10/2105 0%
Ovarian Carcinoma
0/109 0%
5/998 0%
Mesothelioma
0/62 0%
1/165 1%
Cervical Carcinoma
0/35 0%
2/422 0%
Thyroid Gland Carcinoma
0/45 0%
6/1592 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
8/2534 0%
Ewings Sarcoma
1/63 2%
0/262 0%
Neuroendocrine Tumour
0/154 0%
2/577 0%
Other Sarcomas
2/69 3%
0/699 0%
Pancreatic Carcinoma
0/89 0%
4/1611 0%

Mutation Distribution

Where FIP1L1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in FIP1L1 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 988 mutations in FIP1L1

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