Definitions for tyrosinaseˈtaɪ roʊ sɪˌneɪs, -ˌneɪz, ˈtɪr oʊ-

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Random House Webster's College Dictionary

ty•ro•si•naseˈtaɪ roʊ sɪˌneɪs, -ˌneɪz, ˈtɪr oʊ-(n.)

  1. an enzyme of plant and animal tissues that catalyzes the aerobic oxidation of tyrosine into melanin and other pigments.

    Category: Biochemistry

Origin of tyrosinase:

< F (1896); see tyrosine , -ase

Wiktionary

  1. tyrosinase(Noun)

    An enzyme, similar to catechol oxidase, that catalyzes the production of phenolic pigments such as melanin.

Freebase

  1. Tyrosinase

    In molecular biology, Tyrosinase refers to an oxidase, which is the rate limiting enzyme for controlling the production of melanin. It is mainly involved in two distinct reactions of melanin synthesis; firstly, the hydroxylation of a monophenol and secondly, the conversion of an o-diphenol to the corresponding o-quinone. o-Quinone undergoes several reactions to eventually form melanin. Tyrosinase is a copper-containing enzyme present in plant and animal tissues that catalyzes the production of melanin and other pigments from tyrosine by oxidation, as in the blackening of a peeled or sliced potato exposed to air. It is found inside melanosomes. In humans, the tyrosinase enzyme is encoded by the TYR gene.

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"tyrosinase." Definitions.net. STANDS4 LLC, 2014. Web. 23 Nov. 2014. <http://www.definitions.net/definition/tyrosinase>.

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