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Some of the active ingredients found in common tanning lotions include melanin and L-Tyrosine. [3] Other commonly found ingredients include tea oil, copper (in many different chemical compounds), green tea extract and many other natural oils. Indoor tanning lotions are usually designed to only use ingredients that will not cause damage or build ...
In addition to the common amino acid L-tyrosine, which is the para isomer (para-tyr, p-tyr or 4-hydroxyphenylalanine), there are two additional regioisomers, namely meta-tyrosine (also known as 3-hydroxyphenylalanine, L-m-tyrosine, and m-tyr) and ortho-tyrosine (o-tyr or 2-hydroxyphenylalanine), that occur in nature.
This page was last edited on 24 July 2006, at 19:38 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
Horizontal low-pressure tanning bed. Indoor tanning involves using a device that emits ultraviolet radiation to produce a cosmetic tan. [a] Typically found in tanning salons, gyms, spas, hotels, and sporting facilities, and less often in private residences, the most common device is a horizontal tanning bed, also known as a sunbed or solarium.
The enzyme tyrosine phenol-lyase (EC 4.1.99.2) catalyzes the chemical reaction L -tyrosine + H 2 O ⇌ {\displaystyle \rightleftharpoons } phenol + pyruvate + NH 3 This enzyme belongs to the family of lyases , specifically in the "catch-all" class of carbon-carbon lyases.
Aurone synthase purified from Coreopsis grandiflora shows weak tyrosinase activity against isoliquiritigenin, but the enzyme does not react with the classic tyrosinase substrates l-tyrosine and tyramine and must therefore be classified as catechol oxidase. [49] Laccase, a multi-copper oxidase, is often considered a subclass of polyphenol ...
In enzymology, a tyrosine—arginine ligase (EC 6.3.2.24) is an enzyme that catalyzes the chemical reaction. ATP + L-tyrosine + L-arginine AMP + diphosphate + L-tyrosyl-L-arginine. The 3 substrates of this enzyme are ATP, L-tyrosine, and L-arginine, whereas its 3 products are AMP, diphosphate, and L-tyrosyl-L-arginine.
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