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Protein / target

Tyrosinase

Encoded byTYRP14679Homo sapiensSwiss-Prot
Clinically validated
Therapeutic maturity
1
Approved medicines
Open Targets target-level
Small-molecule tractable
Druggability
Approved Drug
2
Research papers

Protein at a glance

Biological role

Protein homodimerization

Strongest disease association

Vitiligo

Via encoding gene TYR · Genetic evidence · score 0.80

Therapeutic position

Established drug target

Small molecules

Research activity

Emerging research

2 papers · latest 2025

Derived from structured UniProt, Open Targets and literature data on this page.

Protein profile

UniProt 2026_02

Canonical identity and biological annotation from UniProt.

Function overview

This is a copper-containing oxidase that functions in the formation of pigments such as melanins and other polyphenolic compounds.

View complete UniProt function annotation

This is a copper-containing oxidase that functions in the formation of pigments such as melanins and other polyphenolic compounds. Catalyzes the initial and rate limiting step in the cascade of reactions leading to melanin production from tyrosine (By similarity). In addition to hydroxylating tyrosine to DOPA (3,4-dihydroxyphenylalanine), also catalyzes the oxidation of DOPA to DOPA-quinone, and possibly the oxidation of DHI (5,6-dihydroxyindole) to indole-5,6 quinone (PubMed:28661582)

Subcellular location

Melanosome membraneMelanosome
Domains and Gene Ontology detail (19)

Gene Ontology

  • Ccytoplasm
  • CGolgi-associated vesicle
  • Clysosome
  • Cmelanosome
  • Cmelanosome membrane
  • Cperinuclear region of cytoplasm
  • Fcopper ion binding
  • Fidentical protein binding
  • Fprotein homodimerization activity
  • Ftyrosinase activity
  • Peye pigment biosynthetic process
  • Pmelanin biosynthetic process

529 aa · 60 kDa · 2 isoforms

Translational evidence

Open Targets 26

Why this target matters therapeutically, strongest evidence first. Disease associations are gene-level (via the gene that encodes this protein) and open into the full confidence synthesis; the development universe, tractability and safety annotations are target-level, from Open Targets.

Strongest disease associations · via encoding gene TYR

Gene-level evidence surfaced through the gene TYRthat encodes this protein — not a direct protein–disease relationship. Ranked by Forefront's causal-directness weighting, so genetically- and clinically-evidenced diseases lead over ones that merely share the literature.

Vitiligo
0.94Well supported

Genetic evidence dominant · Open Targets 0.60

Melanoma
0.74Moderately supported

Genetic evidence dominant · Open Targets 0.56

View evidence synthesis (2)
VitiligoWell supported
0.94
agreement 0.851.00
Genetic45%Clinical25%Animal model22%Literature6%RNA expression2%

Open Targets aggregate 0.60 · 5 independent evidence families

MelanomaModerately supported
0.74
agreement 0.610.87
Genetic81%Literature17%RNA expression3%

Open Targets aggregate 0.56 · 3 independent evidence families

The evidence agreement range shows how closely the independent evidence families agree — it is not a statistical confidence interval, and nothing here is fitted to outcome data. Derived from Open Targets evidence types under Forefront weighting; the per-type scores above show the calculation.

Show all associations
Vitiligo0.60
Melanoma0.56

Drug development

2 compounds recorded · 1 approved · 1 in clinical development

Open Targets' development universe — every compound recorded against the target at any stage, not all approved medicines.

View all recorded compounds (2)
MONOBENZONEApproval
ARBUTINPhase 2 3

Open Targets known-drugs universe. Drug name and highest clinical stage only — the disease relationship is NOT read from this slice (it carries trial-context noise); approved indications come from the canonical graph above.

Tractability

Small moleculesStrong

Approved Drug and High-Quality Ligand support this modality.

AntibodiesEmerging

Feasibility evidence (uniprot sigp or tmhmm) — no clinical-stage drug of this modality recorded.

Protein degradersEmerging

Feasibility evidence (small molecule binder) — no clinical-stage drug of this modality recorded.

View underlying tractability evidence (5)
SM · Approved DrugSM · High-Quality LigandSM · Druggable FamilyAB · UniProt SigP or TMHMMPR · Small Molecule Binder

Raw Open Targets tractability assessment buckets, by modality.

Research activity

2 papers · to 2025

Papers linked directly to this protein. This is the protein's own literature — descriptor-derived papers are kept separate below.

Most cited

Thawabteh AM · Molecules (Basel, Switzerland) · 2023

Zdybicka-Barabas A · International journal of molecular sciences · 2025

Recent

Innate Immunity in Insects: The Lights and Shadows of Phenoloxidase System Activation.

Zdybicka-Barabas A · International journal of molecular sciences · 2025

Skin Pigmentation Types, Causes and Treatment-A Review.

Thawabteh AM · Molecules (Basel, Switzerland) · 2023

Europe PMC papers linked directly to this protein.