Two characteristics of tyrosinase

Tyrosinase, an oxidase that is the rate-limiting enzyme for controlling the production of melanins is mainly involved in two distinct reactions of melanin synthesis: (1) the hydroxylation of a monophenol, and (2) the conversion of an o-diphenol to the corresponding o-quinone. o-quinone undergoes several reactions to... Tyrosinase. An enzyme involved with melanin synthesis, which gives the skin its color and also involved with browning of fruits, tubers, and fungi that have been damaged.

Tyrosinase is responsible for the first step in melanin production. It converts a protein building block (amino acid) called tyrosine to another compound called dopaquinone.

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from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.