5-Hydroxytryptophan(redirected from 5-hydroxy-tryptophan)
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(also β-5-hydroxyindolyl-3-alanine), an amino acid. Two optically active forms and one racemic form exist for 5-hydroxytryptophan. In animals and man, L-5-hydroxytryptophan is produced as a result of the enzymatic hydroxylation of L-tryptophan during the conversion of L-tryp-tophan into the nervous-system mediator serotonin. When injected parenterally, 5-hydroxytryptophan has a hallucinogenic effect.