tyrosinase

enzyme

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July 14, 2026

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Tyrosinase is a copper-containing enzyme that promotes the oxidation of phenols, such as tyrosine. This process is crucial for the synthesis of melanins, which are pigments responsible for colors ranging from buff to black in many organisms, including humans.12

In humans, tyrosinase plays a vital role in determining skin, hair, and eye color. The degree of melanization is influenced by the concentration of copper and tyrosinase. A deficiency in tyrosinase can lead to albinism, an inherited condition characterized by a lack of pigment. Enzymes like tyrosinase are essential biological catalysts that regulate biochemical reactions necessary for life.23

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transition metal
Biological functions of transition metals
…in a 1:1 ratio; (3) tyrosinases, which catalyze the formation of melanin (brownish-black pigments occurring in hair, skin, and retina of higher animals) and were the first enzymes in which copper was shown to be essential to function.
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…in a 1:1 ratio; (3) tyrosinases, which catalyze the formation of melanin (brownish-black pigments occurring in hair, skin, and retina of higher animals) and were the first enzymes in which copper was shown to be essential to function.
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coloration
Melanins
…catalyzed by the copper-containing enzyme tyrosinase. Extractable in very dilute alkali, melanins are also soluble when fresh and undried in very dilute acid solutions; they are bleached by hydrogen peroxide, which is sometimes applied to growing hair to create a blond effect, and by chlorine, chromate, and permanganate.
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…catalyzed by the copper-containing enzyme tyrosinase. Extractable in very dilute alkali, melanins are also soluble when fresh and undried in very dilute acid solutions; they are bleached by hydrogen peroxide, which is sometimes applied to growing hair to create a blond effect, and by chlorine, chromate, and permanganate.
Read More