拟南芥中三种钼辅因子羟化酶的生化与遗传特性
Biochemical and genetic characterization of three molybdenum cofactor hydroxylases in Arabidopsis thaliana.
作者信息
Hoff T, Frandsen G I, Rocher A, Mundy J
机构信息
Department of Plant Physiology, University of Copenhagen, Oester Farimagsgade 2A, 1353 Copenhagen K, Denmark.
出版信息
Biochim Biophys Acta. 1998 Jul 9;1398(3):397-402. doi: 10.1016/s0167-4781(98)00085-2.
Aldehyde oxidases and xanthine dehydrogenases/oxidases belong to the molybdenum cofactor dependent hydroxylase class of enzymes. Zymograms show that Arabidopsis thaliana has at least three different aldehyde oxidases and one xanthine oxidase. Three different cDNA clones encoding putative aldehyde oxidases (AtAO1, 2, 3) were isolated. An aldehyde oxidase is the last step in abscisic acid (ABA) biosynthesis. AtAO1 is mainly expressed in seeds and roots which might reflect that it is involved in ABA biosynthesis.
醛氧化酶和黄嘌呤脱氢酶/氧化酶属于依赖钼辅因子的羟化酶类酶。酶谱分析表明，拟南芥至少有三种不同的醛氧化酶和一种黄嘌呤氧化酶。分离出了三个编码假定醛氧化酶（AtAO1、2、3）的不同cDNA克隆。醛氧化酶是脱落酸（ABA）生物合成的最后一步。AtAO1主要在种子和根中表达，这可能反映出它参与ABA的生物合成。
Zotero 插件