Mammalian mitochondria contain a soluble acyl carrier protein

被引:55
作者
Cronan, JE
Fearnley, IM
Walker, JE
机构
[1] MRC, Dunn Human Nutr Unit, Cambridge CB2 2XY, England
[2] Univ Illinois, Dept Microbiol, Urbana, IL 61801 USA
关键词
acyl carrier protein; mitochondrial matrix; type II fatty acid synthesis; NADH : ubiquinone oxidoreductase; complex I;
D O I
10.1016/j.febslet.2005.07.077
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Plant and fungal mitochondria contain type II fatty acid synthesis systems closely related to those of bacteria in which the individual reactions are catalyzed by separate soluble proteins acting on intermediates bound to acyl carrier protein (ACP). Mammalian mitochondria are thought to synthesize fatty acids, but evidence for the key ACP component was lacking since the only reported ACP was the SDAP subunit of the membrane-bound NADH:ubiquinone oxidoreductase, We report that most of the SDAP is found in the soluble (matrix) fraction of bovine heart mitochondria and is therefore available to carry the intermediates of type II fatty acid synthesis. (c) 2005 Published by Elsevier B.V. on behalf of the Federation of European Biochemical Societies.
引用
收藏
页码:4892 / 4896
页数:5
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