释义 |
alkapton ThesaurusNoun | 1. | alkapton - an acid formed as an intermediate product of the metabolism of tyrosine and phenylalaninealcapton, homogentisic acidacid - any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt |
alkapton
alkapton [al-kap´ton] a class of substances with an affinity for alkali, sometimes found in the urine and causing the condition known as alkaptonuria. The urinary formation of alkaptons results from the incomplete oxygenation of tyrosine and phenylalanine. The compound commonly found, and most commonly referred to by the term, is homogentisic acid.ho·mo·gen·tis·ic ac·id (hō'mō-jen-tis'ik as'id), Glycosuric acid; (2,5-dihydroxyphenyl)acetic acid; an intermediate in l-phenylalanine and l-tyrosine catabolism; if made alkaline, it oxidizes rapidly in air to a quinone that polymerizes to a melaninlike material; elevated levels are observed in patients with alcaptonuria. Synonym(s): alcapton, alkaptonho·mo·gen·tis·ic ac·id (hō'mō-jen-tis'ik as'id) An intermediate in l-phenylalanine and l-tyrosine catabolism; if made alkaline, it oxidizes rapidly in air to a quinone that polymerizes to a melaninlike material; elevated levels are observed in individuals having alcaptonuria. Synonym(s): alcapton, alkapton. alkapton Related to alkapton: alkaptonuria, homogentisic acidSynonyms for alkaptonnoun an acid formed as an intermediate product of the metabolism of tyrosine and phenylalanineSynonyms- alcapton
- homogentisic acid
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