Biosynthesis of salinosporamides from alpha,beta-unsaturated fatty acids: implications for extending polyketide synthase diversity.

Biosynthesis of salinosporamides from alpha,beta-unsaturated fatty acids: implications for extending polyketide synthase diversity.
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DOI:
10.1021/ja9042824
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发表时间:
2009-08-05
影响因子:
15
通讯作者:
Moore, Bradley S.
Moore, Bradley S.
中科院分区:
化学1区
文献类型:
--
作者:
Liu, Yuan;Hazzard, Christopher;Eustaquio, Alessandra S.;Reynolds, Kevin A.;Moore, Bradley S.

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发现了一系列新的辅酶A-栓系的聚酮合酶延伸单元,其与来自海洋细菌Salinispora tropica的盐孢酰胺家族抗癌剂的生物合成有关。体内和体外实验表明,巴豆酰辅酶A还原酶/羧化酶SalG对2-烯基辅酶A具有广泛的底物耐受性,这导致盐孢菌酰胺C-2取代模式。
A new series of coenzyme A-tethered polyketide synthase extender units were discovered in relation to the biosynthesis of the salinosporamide family of anticancer agents from the marine bacteriumSalinispora tropica. In vivo and in vitro experiments revealed that the crotonyl-CoA reductase/carboxylase SalG has broad substrate tolerance toward 2-alkenyl-CoAs that give rise to the salinosporamide C-2 substitution pattern.
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