Structure of Human Tyrosinase Related Protein 1 Reveals a Binuclear Zinc Active Site Important for Melanogenesis

Xuelei Lai, Harry J. Wichers, Montserrat Soler-Lopez*, Bauke W. Dijkstra

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

37 Citations (Scopus)

Abstract

Tyrosinase-related protein 1 (TYRP1) is one of three tyrosinase-like glycoenzymes in human melanocytes that are key to the production of melanin, the compound responsible for the pigmentation of skin, eye, and hair. Difficulties with producing these enzymes in pure form have hampered the understanding of their activity and the effect of mutations that cause albinism and pigmentation disorders. Herein we show that the typical tyrosinase-like subdomain of TYRP1 contains two zinc ions in the active site instead of copper ions as found in tyrosinases, which explains why TYRP1 does not exhibit tyrosinase redox activity. In addition, the structures reveal for the first time that the Cys-rich subdomain, which is unique to vertebrate melanogenic proteins, has an epidermal growth factor-like fold and is tightly associated with the tyrosinase subdomain. Our structures suggest that most albinism-related mutations of TYRP1 affect its stability or activity.
Original languageEnglish
Pages (from-to)9812-9815
JournalAngewandte Chemie-International Edition
Volume56
Issue number33
DOIs
Publication statusPublished - 2017

Keywords

  • albinism
  • human tyrosinase
  • melanogenesis
  • structure elucidation
  • zinc–copper enzymes

Fingerprint Dive into the research topics of 'Structure of Human Tyrosinase Related Protein 1 Reveals a Binuclear Zinc Active Site Important for Melanogenesis'. Together they form a unique fingerprint.

  • Cite this