PHACTR4

Phosphatase and actin regulator 4 Q8IZ21 PHAR4_HUMAN
Protein Coding Chr 1 1p35.3 Swiss-Prot reviewed Entrez 65979
Mutations
570
CL 105 · Tissue 455
Samples
289
CL 70 · Tissue 215
Peptides
229
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
Mutations570105455
Samples28970215
Peptides22946181

Function

PHACTR4 · Phosphatase and actin regulator 4

This gene encodes a member of the phosphatase and actin regulator (PHACTR) family. Other PHACTR family members have been shown to inhibit protein phosphatase 1 (PP1) activity, and the homolog of this gene in the mouse has been shown to interact with actin and PP1. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008].

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
ENST00000373839 Q8IZ21 307 226
ENST00000373836 Q8IZ21-2 263 207

Gene Properties

Type
Protein Coding
Chromosome
1
Cytoband
1p35.3
Entrez ID
Aliases
PPP1R124

Recurrent Mutations

All 225 amino-acid changes on canonical ENST00000373839 · 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 PHACTR4 · 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 PHACTR4 – 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%
Glioblastoma
5/98 5%
0/0 0%
Endometrial Carcinoma
5/42 12%
13/612 2%
Unknown
0/10 0%
1/29 3%
Oral Cavity Carcinoma
1/54 2%
0/0 0%
Gastrointestinal Stromal Tumour
0/0 0%
2/133 2%
Colorectal Carcinoma
11/143 8%
37/3239 1%
Bladder Carcinoma
5/58 9%
9/956 1%
Melanoma
6/210 3%
21/1899 1%
Other Solid Cancers
5/94 5%
14/1515 1%
Cervical Carcinoma
0/35 0%
4/422 1%
Non-Small Cell Lung Carcinoma
5/304 2%
9/1390 1%
Squamous Cell Lung Carcinoma
0/57 0%
7/810 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Gastric Carcinoma
0/74 0%
12/1809 1%
Ewings Sarcoma
0/63 0%
2/262 1%
Thyroid Gland Carcinoma
0/45 0%
9/1592 1%
Head and Neck Carcinoma
6/85 7%
3/1574 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
14/2550 1%
Germ Cell Tumour
0/25 0%
1/169 1%
Rhabdomyosarcoma
0/33 0%
1/171 1%
Kidney Carcinoma
2/85 2%
7/1862 0%
Mesothelioma
1/62 2%
0/165 0%
Burkitts Lymphoma
1/32 3%
0/196 0%
Neuroendocrine Tumour
0/154 0%
3/577 1%
Breast Carcinoma
6/144 4%
8/3264 0%
Hepatocellular Carcinoma
0/46 0%
9/2210 0%
Biliary Tract Carcinoma
1/54 2%
3/950 0%
Prostate Carcinoma
2/13 15%
4/2105 0%
Glioma
0/52 0%
6/2127 0%

Mutation Distribution

Where PHACTR4 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in PHACTR4 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 570 mutations in PHACTR4

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