# CACNA1H

Source: https://onco.cc/targets/cacna1h/  
OnCo record `cacna1h` (Target). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

CACNA1H (Voltage-dependent T-type calcium channel subunit alpha-1H) is a gene. The public catalogues list it as a drug target, and an approved or late-stage drug is recorded against it.

## Summary

Voltage-sensitive calcium channel that gives rise to T-type calcium currents. T-type calcium channels belong to the 'low-voltage activated (LVA)' group. A particularity of this type of channel is an opening at quite negative potentials, and a voltage-dependent inactivation.

Open Targets scores its association with cancer at 0.57 (direct and indirect evidence; datatypes clinical 0.87, literature 0.88, genetic association 0.00, somatic mutation 0.18, animal model 0.57).

## Fields

- Kind: Target
- Last checked: 2026-09-23
- Also known as: calcium voltage-gated channel subunit alpha1 H; Voltage-dependent T-type calcium channel subunit alpha-1H; Cav3.2
- Tags: cancer-genes-wave
- Symbol: CACNA1H
- Class: other
- Biology: Voltage-sensitive calcium channel that gives rise to T-type calcium currents. T-type calcium channels belong to the 'low-voltage activated (LVA)' group. A particularity of this type of channel is an opening at quite negative potentials, and a voltage-dependent inactivation. T-type channels serve pacemaking functions in both central neurons and cardiac nodal cells and support calcium signalling in secretory cells and vascular smooth muscle. They may also be involved in the modulation of firing patterns of neurons. In the adrenal zona glomerulosa, participates in the signalling pathway leading to aldosterone production in response to either AGT/angiotensin II, or hyperkalemia. Location: Cell membrane (UniProt). Locus 16p13.3 (HGNC).

## Notes

- Written by scripts/fetch-cancer-genes.ts from CIViC, Open Targets, IntOGen, HGNC and UniProt; the function text is UniProt's, condensed and in UK spelling. Roles: Open Targets known-drug datatype score 0.87. Evidence tier "approved-drug" is the strongest of those signals.
- Prevalence not recorded: none of the sources gives a positivity rate.

## Sources

- HGNC HGNC:1395: https://www.genenames.org/data/gene-symbol-report/#!/hgnc_id/HGNC:1395
- UniProt O95180: https://www.uniprot.org/uniprotkb/O95180/entry
- NCBI Gene 8912: https://www.ncbi.nlm.nih.gov/gene/8912
- Ensembl ENSG00000196557: https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000196557

## Connected records

- collections: [Open Targets Platform](https://onco.cc/collections/open-targets/)

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JSON: https://onco.cc/api/v1/entities/cacna1h.json