AVERMECTIN BIOSYSTHESIS - INTACT INCORPORATION OF A DIKETIDE CHAIN-ASSEMBLY INTERMEDIATE INTO THE POLYKETIDE MACROCYCLIC RING

被引:16
作者
DUTTON, CJ
HOOPER, AM
LEADLAY, PF
STAUNTON, J
机构
[1] UNIV CAMBRIDGE,CHEM LAB,LENSFIELD RD,CAMBRIDGE CB2 1EW,ENGLAND
[2] PFIZER LTD,CENT RES DIV,SANDWICH CT13 9NJ,KENT,ENGLAND
[3] DEPT BIOCHEM,CAMBRIDGE CB2 1QW,ENGLAND
关键词
D O I
10.1016/S0040-4039(00)76544-0
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Incorporation experiments in Streptomyces avermitilis with synthetic analogues of the proposed diketide intermediate support the processive mechanism of chain assembly in the biosynthesis of the polyketide core of the avermectin structure. Specific incorporation of a C-13 labelled precursor was established by C-13 NMR; intact incorporation of two deuterium-labelled analogues was established by electrospray mass spectrometry (ESMS).
引用
收藏
页码:327 / 330
页数:4
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