CACNB1

Calcium voltage-gated channel auxiliary subunit beta 1 Q02641 CACB1_HUMAN
Protein Coding Chr 17 17q12 Swiss-Prot reviewed Entrez 782
Mutations
698
CL 86 · Tissue 595
Samples
319
CL 53 · Tissue 257
Peptides
240
unique mutant peptides
Transcripts
3
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
Mutations69886595
Samples31953257
Peptides24038199

Function

CACNB1 · Calcium voltage-gated channel auxiliary subunit beta 1

The protein encoded by this gene belongs to the calcium channel beta subunit family. It plays an important role in the calcium channel by modulating G protein inhibition, increasing peak calcium current, controlling the alpha-1 subunit membrane targeting and shifting the voltage dependence of activation and inactivation. Alternative splicing occurs at this locus and three transcript variants encoding three distinct isoforms have been identified. [provided by RefSeq, Jul 2008].

Isoforms & Proteins

3 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
ENST00000394303 Q02641 309 213
ENST00000344140 Q02641-2 202 154
ENST00000394310 Q02641-3 187 144

Gene Properties

Type
Protein Coding
Chromosome
17
Cytoband
17q12
Entrez ID
Aliases
CAB1CACNLB1CCHLB1

Recurrent Mutations

All 213 amino-acid changes on canonical ENST00000394303 · 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 CACNB1 · 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 CACNB1 – 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-Cell Non-Hodgkins Lymphoma
2/26 8%
0/0 0%
T-Lymphoblastic Leukemia
3/40 8%
0/0 0%
Endometrial Carcinoma
6/42 14%
19/612 3%
Melanoma
3/210 1%
37/1899 2%
Colorectal Carcinoma
9/143 6%
41/3239 1%
Non-Small Cell Lung Carcinoma
8/304 3%
11/1390 1%
Other Sarcomas
3/69 4%
5/699 1%
Gastric Carcinoma
1/74 1%
15/1809 1%
Small Cell Lung Carcinoma
1/9 11%
5/752 1%
Prostate Carcinoma
2/13 15%
14/2105 1%
Cervical Carcinoma
2/35 6%
1/422 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
17/2550 1%
Other Solid Cancers
1/94 1%
9/1515 1%
Biliary Tract Carcinoma
0/54 0%
6/950 1%
Bladder Carcinoma
0/58 0%
6/956 1%
Hepatocellular Carcinoma
0/46 0%
13/2210 1%
Squamous Cell Lung Carcinoma
0/57 0%
5/810 1%
Head and Neck Carcinoma
2/85 2%
7/1574 0%
Germ Cell Tumour
0/25 0%
1/169 1%
B-Cell Non-Hodgkins Lymphoma
3/88 3%
10/2534 0%
Osteosarcoma
0/45 0%
1/166 1%
Ovarian Carcinoma
0/109 0%
5/998 0%
Non-Cancerous
0/104 0%
4/830 0%
Thyroid Gland Carcinoma
1/45 2%
6/1592 0%
Esophageal Carcinoma
0/23 0%
3/769 0%
Breast Carcinoma
3/144 2%
9/3264 0%
Kidney Carcinoma
0/85 0%
6/1862 0%
Ewings Sarcoma
0/63 0%
1/262 0%
Plasma Cell Myeloma
0/44 0%
1/305 0%
Glioma
1/52 2%
5/2127 0%

Mutation Distribution

Where CACNB1 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in CACNB1 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 698 mutations in CACNB1

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