β-Ketothiolase deficiency(β-酮硫解酶缺乏症)

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检测编号:NS0080018


基因 ACAT1 与疾病

ACAT1基因指导合成ACAT1酶,在异亮氨酸代谢的最后一步发挥作用,将2-甲基-乙酰乙酰辅酶A分解成丙酰辅酶A和乙酰辅酶A,可用于供能;ACAT1酶在酮类代谢的最后一步也能发挥作用,将乙酰乙酰辅酶A转化成乙酰辅酶A,用于供能。在肝脏中,ACAT1酶还是酮类合成中第一步的关键酶,将乙酰辅酶A转化成乙酰乙酰辅酶A。已发现40多种ACAT1基因突变。

基因名称基因全名基因位置外显子个数 CDS长度
ACAT1 acetyl-CoA acetyltransferase 1 11q22.3 12 约2134 bp
基因摘要 This gene encodes a mitochondrially localized enzyme that catalyzes the reversible formation of acetoacetyl-CoA from two molecules of acetyl-CoA. Defects in this gene are associated with 3-ketothiolase deficiency, an inborn error of isoleucine catabolism characterized by urinary excretion of 2-methyl-3-hydroxybutyric acid, 2-methylacetoacetic acid, tiglylglycine, and butanone. [provided by RefSeq, Feb 2009].