dihydroxyphenylalanine
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dihydroxyphenylalanine
[¦dī‚hī¦dräk·sē‚fen·əl′al·ə‚nēn] (biochemistry)
C9H11NO4 An amino acid that can be formed by oxidation of tyrosine; it is converted by a series of biochemical transformations, utilizing the enzyme dopa oxidase, to melanins. Also known as dopa.