Tryptophan editSet type / Edit

«Tryptophan (symbol Trp or W)[2] is an α-amino acid that is used in the biosynthesis of proteins. Tryptophan contains an α-amino group, an α-carboxylic acid group, and a side chain indole, making it a non-polar aromatic amino acid. It is essential in humans, meaning the body cannot synthesize it: it must be obtained from the diet. Tryptophan is also a precursor to the neurotransmitterserotonin, the hormonemelatonin and vitamin B3.[3] It is encoded by the codon UGG.

Like other amino acids, tryptophan is a zwitterion at physiological pH where the amino group is protonated (–NH3+; pKa = 9.39) and the carboxylic acid is deprotonated ( –COO; pKa = 2.38).[4]» (wikipedia)

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Modified: 8 months ago on Jan 10, 2019
personAlex Inside 23 lvl added it 8 months ago on Jan 10, 2019.