laevo-tryptophan
1H-indole-3-propanoic acid, a-amino-, (S)-
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Category:special dietary and nutritional additives
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Notes: an essential amino acid that is necessary for normal growth in infants and for nitrogen balance in adults. it is a precursor of indole alkaloids in plants. it is a precursor of serotonin (hence its use as an antidepressant and sleep aid). it can be a precursor to niacin, albeit inefficiently, in mammals. Constit. of many plants. Enzymatic hydrol. prod. of most plant and animal proteins. Dietary supplement, nutrient
Tryptophan is one of the 20 standard amino acids, as well as an essential amino acid in the human diet. Only the L-stereoisomer of tryptophan is used in structural or enzyme proteins, but the D-stereoisomer is occasionally found in naturally produced peptides (for example, the marine venom peptide contryphan). (Wikipedia)
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3D/inchi