尿黑酸
niào hēi suān
- 名homogentisate;homogentisic acid;alkapton
尿黑酸-
在植物体内，尿黑酸是维生素E和质体醌的前体，所以HPPD又间接控制着这两类物质的合成。
In plants , homogentisate is the precursor of vitamin E and plastoquinones , therefore HPPD also plays a key role in the biosynthesis of this two kinds of substances .
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对羟基苯丙酮酸双加氧酶（HPPD）是酪氨酸分解代谢过程第二步所需的酶，它催化对羟基苯丙酮酸转化为尿黑酸。
ρ - hydroxyphenylpyruvate dioxygenase ( HPPD ) is an enzyme which needed in the second step of the tyrosine catabolic pathway . It catalyzes the formation of homogentisate from p-hydroxyphenylpyruvate .
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尿黑酸氧化酶的多种分子形式
Multiple forms of homogentisate oxidase