大肠杆菌β -酮酰基- acp合成酶I在不饱和脂肪酸合成中的作用。

M Siggaard-Andersen
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引用次数: 8

摘要

在大肠杆菌提取物中发现有两种活性可以补充蓝绿蛋白处理的大肠杆菌脂肪酸合成酶的不饱和脂肪酸合成。其中之一是β -酮酰基- acp合成酶I,但不知道其他活性是否代表先前表征的β -酮酰基- acp合成酶II。表现出温度敏感的不饱和脂肪酸合成活性的突变菌株显然缺乏活性的β -酮酰基- acp合成酶I。
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Role of Escherichia coli beta-ketoacyl-ACP synthase I in unsaturated fatty acid synthesis.

Two activities were found in E. coli extracts which could complement unsaturated fatty acid synthesis of a cerulenin treated E. coli fatty acid synthetase. One of these is beta-ketoacyl-ACP synthase I, but it is not known whether the other activity represents the previously characterized beta-ketoacyl-ACP synthase II. A mutant strain exhibiting a temperature sensitive unsaturated fatty acid synthetic activity apparently lacked an active beta-ketoacyl-ACP synthase I.

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