OnCo

OCA2 (P protein) is a gene. In the public catalogues the evidence so far is association rather than a proven role. Tied to Skin cancer, Melanoma and Basal cell carcinoma. This dossier gathers the 0 products (0 approved), 0 trials, 0 pathways and 0 resistance routes in the corpus that involve it, with external identifiers so it can be joined to UniProt, ChEMBL, Open Targets and the rest of biology.

Biology

Contributes to a melanosome-specific anion (chloride) current that modulates melanosomal pH for optimal tyrosinase activity required for melanogenesis and the melanosome maturation. One of the components of the mammalian pigmentary system. May serve as a key control point at which ethnic skin colour variation is determined. Major determinant of brown and/or blue eye colour. Seems to regulate the post-translational processing of tyrosinase, which catalyses the limiting reaction in melanin synthesis. Location: Melanosome membrane (UniProt). Locus 15q12-q13.1 (HGNC).

Where it is found
  • Skin cancer: Open Targets association 0.63 with skin cancer (MONDO_0002898)
  • Melanoma: Open Targets association 0.59 with melanoma (MONDO_0005105)
  • Basal cell carcinoma: Open Targets association 0.54 with basal cell carcinoma (MONDO_0020804)
Class: other · Gene: OCA2 · Facts checked 2026-09-23 · Target page

External identifiers

Built from HGNC, Ensembl, UniProt and ChEMBL ids

Products by modality and phase

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No product in the corpus is aimed at this target yet.

No trial in the corpus names this target or one of its products.

Resistance routes

Unaddressed routes →

The resistance atlas has no route that names this target.

No pathway diagram carries this target as a node.

Companion diagnostics

Assay registry →

No companion diagnostic in the registry measures this target.

Preclinical models

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No model entry for this target yet; check the cancer entries on the models page.

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Literature

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Open in Europe PMC

Query for this target: (TITLE:"OCA2" OR ABSTRACT:"OCA2" OR TITLE:"OCA2 melanosomal transmembrane protein" OR ABSTRACT:"OCA2 melanosomal transmembrane protein" OR TITLE:"P protein" OR ABSTRACT:"P protein" OR TITLE:"BEY1" OR ABSTRACT:"BEY1" OR TITLE:"BEY2" OR ABSTRACT:"BEY2" OR TITLE:"SLC13B1" OR ABSTRACT:"SLC13B1") AND (cancer OR tumor OR tumour OR oncology OR carcinoma OR lymphoma OR leukemia OR leukaemia OR myeloma OR sarcoma OR melanoma OR glioma). Results are unfiltered search hits about OCA2, not a curated reading list.

Export

The dossier as machine-readable JSON: identifiers from HGNC, Ensembl, UniProt and ChEMBL, products with status, trials, pathways, hotspots, open questions and assays. The full entity record is in the open API at /api/v1/entities/oca2.json. Licence CC BY-NC 4.0.