CACNA1I

Calcium voltage-gated channel subunit alpha1 I Q9P0X4 CAC1I_HUMAN
Protein Coding Chr 22 22q13.1 Swiss-Prot reviewed Entrez 8911
Mutations
4,634
CL 568 · Tissue 4,018
Samples
1,154
CL 230 · Tissue 909
Peptides
925
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
Mutations4,6345684,018
Samples1,154230909
Peptides925165781

Function

CACNA1I · Calcium voltage-gated channel subunit alpha1 I

This gene encodes the pore-forming alpha subunit of a voltage gated calcium channel. The encoded protein is a member of a subfamily of calcium channels referred to as is a low voltage-activated, T-type, calcium channel. The channel encoded by this protein is characterized by a slower activation and inactivation compared to other T-type calcium channels. This protein may be involved in calcium signaling in neurons. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Oct 2011].

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
ENST00000402142 Q9P0X4 1,309 898
ENST00000404898 Q9P0X4-4 1,139 825
ENST00000401624 Q9P0X4-2 1,099 797
ENST00000407673 Q9P0X4-3 1,087 787

Gene Properties

Type
Protein Coding
Chromosome
22
Cytoband
22q13.1
Entrez ID
Aliases
Cav3.3NEDSISca(v)3.3

Recurrent Mutations

All 897 amino-acid changes on canonical ENST00000402142 · 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 CACNA1I · 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 CACNA1I – 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
13/40 32%
0/0 0%
Melanoma
15/210 7%
140/1899 7%
Endometrial Carcinoma
11/42 26%
29/612 5%
Non-Small Cell Lung Carcinoma
34/304 11%
63/1390 5%
Squamous Cell Lung Carcinoma
9/57 16%
36/810 4%
Gastric Carcinoma
7/74 9%
76/1809 4%
Glioblastoma
4/98 4%
0/0 0%
Colorectal Carcinoma
18/143 13%
112/3239 3%
Other Solid Cancers
2/94 2%
56/1515 4%
Small Cell Lung Carcinoma
0/9 0%
26/752 3%
Thyroid Gland Carcinoma
4/45 9%
49/1592 3%
Plasma Cell Myeloma
6/44 14%
5/305 2%
Gastrointestinal Stromal Tumour
0/0 0%
4/133 3%
Other Sarcomas
7/69 10%
15/699 2%
Cervical Carcinoma
1/35 3%
12/422 3%
Mesothelioma
4/62 6%
2/165 1%
Burkitts Lymphoma
6/32 19%
0/196 0%
Bladder Carcinoma
3/58 5%
18/956 2%
Germ Cell Tumour
2/25 8%
2/169 1%
Hepatocellular Carcinoma
3/46 7%
39/2210 2%
Oral Cavity Carcinoma
1/54 2%
0/0 0%
Ovarian Carcinoma
13/109 12%
7/998 1%
Biliary Tract Carcinoma
1/54 2%
17/950 2%
Head and Neck Carcinoma
3/85 4%
23/1574 1%
Ewings Sarcoma
2/63 3%
3/262 1%
Esophageal Carcinoma
0/23 0%
12/769 2%
Pancreatic Carcinoma
8/89 9%
17/1611 1%
Hodgkins Lymphoma
2/16 12%
0/122 0%
Esophageal Squamous Cell Carcinoma
7/51 14%
29/2550 1%
Neuroendocrine Tumour
4/154 3%
5/577 1%

Mutation Distribution

Where CACNA1I is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in CACNA1I 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 4,634 mutations in CACNA1I

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