Cited by 312melanin and skin pigmentationMetal-Catalyzed Oxygenation MechanismsEnzyme Structure and Function

New insights into the active site structure and catalytic mechanism of tyrosinase and its related proteins

Olivares, Concepcion, Solano, Francisco·2009·Pigment Cell & Melanoma Research

Abstract

Tyrosinases are widely distributed in nature. They are copper-containing oxidases belonging to the type 3 copper protein family, together with catechol oxidases and haemocyanins. Tyrosinases are essential enzymes in melanin biosynthesis and therefore responsible for pigmentation of skin and hair in mammals, where two more enzymes, the tyrosinase-related proteins (Tyrps), participate in the pathway. The structure and catalytic mechanism of mammalian tyrosinases have been extensively studied but they are not completely understood because of the lack of information on the tertiary structure. The availability of crystallographic data of one plant catechol oxidase and one bacterial tyrosinase has improved the model of the three-dimensional structure of the active site of the enzyme. Furthermore, sequence comparison of tyrosinase and the Tyrps reveals that the three orthologue proteins share many key structural features, because of their common origin from an ancestral gene, although the specific residues responsible for their different catalytic capabilities have not been identified yet. This review summarizes our current knowledge of tyrosinase and Tyrps structure and function and describes the catalytic mechanism of tyrosinase and Dct/Tyrp2, which are better characterized.

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Crossref · 10.1111/j.1755-148x.2009.00636.x

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  • Copper is a cofactor of tyrosinase, the main enzyme involved in synthesis of the skin pigment melanin.

    “Furthermore, Cu is a cofactor of tyrosinase, the main enzyme involved in synthesis of the skin pigment melanin [128].”

    From Bioactive Compounds for Skin Health: A Review (2021) · cites this paper as [128]

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Authors
Olivares, C., & Solano, F.
Affiliations
Universidad de Murcia (ES)
Venue
Pigment Cell & Melanoma Research
Publisher
Wiley
Published
2009-10-14
Volume
22
Issue
6
Pages
750-760
ISSN
  • 1755-1471 (ISSN-L)
  • 1755-148X
OpenAlex
W1972557284
Cited by
312
References
127
Citations by year
2026: 12 · 2025: 17 · 2024: 21 · 2023: 14 · 2022: 23 · 2021: 23 · 2020: 14 · 2019: 11 · 2018: 18 · 2017: 21 · 2016: 17 · 2015: 15 · 2014: 24 · 2013: 15 · 2012: 35
FWCI
1.70
Type
journal article
Language
en
Open access
closed
Locations
  • Pigment Cell & Melanoma Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › melanin and skin pigmentation
  • Physical Sciences › Chemistry › Inorganic Chemistry › Metal-Catalyzed Oxygenation Mechanisms
  • Physical Sciences › Materials Science › Materials Chemistry › Enzyme Structure and Function
Keywords
tyrosinase, tyrosinase-related proteins, catechol oxidase, active site structure, catalytic mechanism, melanogenesis, skin pigmentation, hair pigmentation, crystal structure
MeSH terms
Amino Acid Sequence, Animals, Catechol Oxidase, Humans, Isoenzymes, Melanins, Models, Molecular, Molecular Sequence Data, Monophenol Monooxygenase, Molecular Structure, Sequence Alignment, Sequence Homology, Amino Acid, Protein Structure, Tertiary, Catalytic Domain

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