A copper-containing protein (a monoxygenase) that catalyses the oxidation of tyrosine, and sets in train spontaneous reactions that yield melanin, the black pigment of skin, hair and eyes. The first intermediate is 3,4-dihydroxyphenylalanine (DOPA). Lack of tyrosinase activity is responsible for albinism.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

  • Tyrosinase — Masse/Länge Primärstruktur 511 Aminosäuren …   Deutsch Wikipedia

  • tyrosinase — [ tirozinaz ] n. f. • 1897; de tyrosine et ase ♦ Biochim. Enzyme qui active l oxydation de la tyrosine, aboutissant à la production de mélanine. ● tyrosinase nom féminin Enzyme qui oxyde la tyrosine en mélanine. (L albinisme est dû à un déficit… …   Encyclopédie Universelle

  • tyrosinase — tyrosinase. См. тирозиназа. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • tyrosinase — [tī′rō sin ās΄, tir′ōsin ās΄; tī rä′sin ās΄] n. [< TYROSINE + ASE] an enzyme, found in plants and animals, that catalyzes the oxidation of the amino acid tyrosine and is involved in the formation of the dark pigment melanin …   English World dictionary

  • Tyrosinase — monophenol monooxygenase Identifiers EC number CAS number 9002 10 2 …   Wikipedia

  • Tyrosinase — La tyrosinase (ou catéchol oxydase) est une enzyme qui catalyse l oxydation des phénols (comme la tyrosine) et elle est très répandue parmi les plantes, les animaux et les mycètes. Une personne ayant un gène de tyrosinase mutée est atteinte d… …   Wikipédia en Français

  • tyrosinase — noun Date: 1896 a copper containing enzyme that promotes the oxidation of phenols (as tyrosine) and is widespread in plants and animals …   New Collegiate Dictionary

  • tyrosinase — /tuy roh si nays , nayz , tir oh /, n. Biochem. an oxidizing enzyme, occurring in plant and animal tissues, that catalyzes the aerobic oxidation of tyrosine into melanin and other pigments. [1895 1900; TYROSINE + ASE] * * * …   Universalium

  • tyrosinase — noun An enzyme, similar to catechol oxidase, that catalyzes the production of phenolic pigments such as melanin. Syn: monophenol monooxygenase …   Wiktionary

  • tyrosinase — SYN: monophenol monooxygenase (1). * * * ty·ros·i·nase tə räs ə .nās, tī , .nāz n an enzyme that promotes the oxidation of phenols (as tyrosine) and is widespread in plants and animals * * * ty·ro·sin·ase (ti roґsin ās) a monophenol… …   Medical dictionary

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