Homogentisic Acid
(redirected from Melanic acid)

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homogentisic acid [¦hä·mə‚jen¦tiz·ik ′as·əd]

(biochemistry)

C₈H₈O₄An intermediate product in the metabolism of phenylalanine and tyrosine; found in excess in persons with phenylketonuria and alkaptonuria.

Homogentisic Acid

an intermediate product of the decomposition of the cyclic amino acids phenylalanine and tyrosine in the animal or human body. In the hereditary disease alkaptonuria, which is expressed in a disturbance of the metabolism of these amino acids, the process stops at the stage of homogentisic acid formation because of an absence of homogentisic acid oxidase, and homogentisic acid is discharged with the urine.

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Homogentisic Acid (redirected from Melanic acid)

Homogentisic Acid
(redirected from Melanic acid)