PF4V1

Platelet factor 4 variant 1 P10720 PF4V_HUMAN
Protein Coding Chr 4 4q13.3 Swiss-Prot reviewed Entrez 5197
Mutations
67
CL 21 · Tissue 45
Samples
66
CL 21 · Tissue 44
Peptides
50
unique mutant peptides
Transcripts
1
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
Mutations672145
Samples662144
Peptides501438

Function

PF4V1 · Platelet factor 4 variant 1

The protein encoded by this gene is a chemokine that is highly similar to platelet factor 4. The encoded protein displays a strong antiangiogenic function and is regulated by chemokine (C-X-C motif) receptor 3. This protein also impairs tumor growth and can protect against blood-retinal barrier breakdown in diabetes patients. [provided by RefSeq, Nov 2015].

Isoforms & Proteins

1 transcript · 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
ENST00000226524 P10720 67 50

Gene Properties

Type
Protein Coding
Chromosome
4
Cytoband
4q13.3
Entrez ID
Aliases
CXCL4L1CXCL4V1PF4-ALTPF4ASCYB4V1

Recurrent Mutations

All 50 amino-acid changes on canonical ENST00000226524 · 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 PF4V1 · 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 PF4V1 – 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
1/25 4%
0/0 0%
T-Cell Non-Hodgkins Lymphoma
1/26 4%
0/0 0%
Non-Small Cell Lung Carcinoma
8/304 3%
3/1390 0%
Ewings Sarcoma
2/63 3%
0/262 0%
Germ Cell Tumour
0/25 0%
1/169 1%
Melanoma
2/210 1%
8/1899 0%
Endometrial Carcinoma
2/42 5%
1/612 0%
Plasma Cell Myeloma
1/44 2%
0/305 0%
Gastric Carcinoma
0/74 0%
5/1809 0%
Medulloblastoma
0/0 0%
1/450 0%
Cervical Carcinoma
0/35 0%
1/422 0%
Bladder Carcinoma
0/58 0%
2/956 0%
Hepatocellular Carcinoma
0/46 0%
4/2210 0%
Pancreatic Carcinoma
0/89 0%
3/1611 0%
Thyroid Gland Carcinoma
0/45 0%
3/1592 0%
Esophageal Carcinoma
0/23 0%
1/769 0%
Head and Neck Carcinoma
0/85 0%
2/1574 0%
Colorectal Carcinoma
2/143 1%
2/3239 0%
Squamous Cell Lung Carcinoma
1/57 2%
0/810 0%
Other Solid Cancers
0/94 0%
2/1515 0%
Ovarian Carcinoma
1/109 1%
0/998 0%
Neuroblastoma
0/87 0%
1/1331 0%
Kidney Carcinoma
0/85 0%
1/1862 0%
Glioma
0/52 0%
1/2127 0%
B-Lymphoblastic Leukemia
0/55 0%
1/2640 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
1/2550 0%
Breast Carcinoma
0/144 0%
1/3264 0%

Mutation Distribution

Where PF4V1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in PF4V1 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 21 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 67 mutations in PF4V1

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