CAPZB

Capping actin protein of muscle Z-line subunit beta P47756 CAPZB_HUMAN
Protein Coding Chr 1 1p36.13 Swiss-Prot reviewed Entrez 832
Mutations
457
CL 42 · Tissue 397
Samples
152
CL 21 · Tissue 123
Peptides
131
unique mutant peptides
Transcripts
5
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
Mutations45742397
Samples15221123
Peptides13118112

Function

CAPZB · Capping actin protein of muscle Z-line subunit beta

This gene encodes the beta subunit of the barbed-end actin binding protein, which belongs to the F-actin capping protein family. The capping protein is a heterodimeric actin capping protein that blocks actin filament assembly and disassembly at the fast growing (barbed) filament ends and functions in regulating actin filament dynamics as well as in stabilizing actin filament lengths in muscle and nonmuscle cells. A pseudogene of this gene is located on the long arm of chromosome 2. Multiple alternatively spliced transcript variants encoding different isoforms have been found.[provided by RefSeq, Aug 2013].

Isoforms & Proteins

5 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
ENST00000264202 P47756 117 89
ENST00000433834 B1AK88* 117 92
ENST00000264203 B1AK85* 110 80
ENST00000375142 P47756-1 107 82
ENST00000375144 B1AK87* 6 5

Gene Properties

Type
Protein Coding
Chromosome
1
Cytoband
1p36.13
Entrez ID
Aliases
CAPBCAPPBCAPZ

Recurrent Mutations

All 89 amino-acid changes on canonical ENST00000264202 · 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 CAPZB · 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 CAPZB – 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%
Endometrial Carcinoma
2/42 5%
4/612 1%
Melanoma
0/210 0%
18/1899 1%
Colorectal Carcinoma
7/143 5%
21/3239 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Prostate Carcinoma
1/13 8%
12/2105 1%
Cervical Carcinoma
0/35 0%
2/422 0%
Hepatocellular Carcinoma
0/46 0%
10/2210 0%
Non-Cancerous
0/104 0%
4/830 0%
Head and Neck Carcinoma
1/85 1%
6/1574 0%
Esophageal Squamous Cell Carcinoma
1/51 2%
8/2550 0%
Non-Small Cell Lung Carcinoma
3/304 1%
3/1390 0%
Gastric Carcinoma
1/74 1%
5/1809 0%
Bladder Carcinoma
0/58 0%
3/956 0%
Neuroendocrine Tumour
0/154 0%
2/577 0%
Thyroid Gland Carcinoma
0/45 0%
4/1592 0%
Squamous Cell Lung Carcinoma
0/57 0%
2/810 0%
Breast Carcinoma
0/144 0%
8/3264 0%
Biliary Tract Carcinoma
0/54 0%
2/950 0%
Other Solid Cancers
0/94 0%
3/1515 0%
Neuroblastoma
0/87 0%
2/1331 0%
Glioma
0/52 0%
3/2127 0%
Other Sarcomas
0/69 0%
1/699 0%
Other Blood Cancers
0/61 0%
3/2725 0%
Ovarian Carcinoma
0/109 0%
1/998 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
2/2534 0%
Kidney Carcinoma
0/85 0%
1/1862 0%

Mutation Distribution

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

Mutation counts by tissue
Mutation Distribution

How many mutations in CAPZB 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 457 mutations in CAPZB

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