Polyketide decarboxylative chain termination preceded by o-sulfonation in curacin a biosynthesis.
Polyketide decarboxylative chain termination preceded by o-sulfonation in curacin a biosynthesis.
复制标题
聚酮化合物脱羧链终止之前是素硫蛋白A生物合成中的O-磺化。
DOI:
10.1021/ja9071578
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发表时间:
2009-11-11
影响因子:
15
通讯作者:
Sherman, David H.
中科院分区:
文献类型:
--
作者:
Gu, Liangcai;Wang, Bo;Kulkarni, Amol;Gehret, Jennifer J.;Lloyd, Kayla R.;Gerwick, Lena;Gerwick, William H.;Wipf, Peter;Hakansson, Kristina;Smith, Janet. L.;Sherman, David H.
Biosynthetic innovation in natural product systems is driven by the recruitment of new genes and enzymes into these complex pathways. Here, an unprecedented decarboxylative chain termination mechanism is described for the polyketide synthase of curacin A, an anticancer lead compound isolated from the marine cyanobacterium Lyngbya majuscula. The unusual chain termination module containing adjacent sulfotransferase (ST) and thioesterase (TE) catalytic domains embedded in CurM was biochemically characterized. The TE was proved to catalyze a hydrolytic chain release of the polyketide chain elongation intermediate. Moreover, a selective ST-mediated sulfonation of the (R)-β-hydroxyl group was found to precede TE-mediated hydrolysis, triggering a successive decarboxylative elimination and resulting in the formation of a rare terminal olefin in the final metabolite.
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DOI:
10.1073/pnas.181466998
发表时间:
2001-11-06
影响因子:
11.1
作者:
Bonanno, JB;Edo, C;Burley, SK
通讯作者:
Burley, SK
影响因子:
--
作者:
Calderone, Christopher T.;Iwig, David F.;Walsh, Christopher T.
通讯作者:
Walsh, Christopher T.
DOI:
10.1073/pnas.0603148103
发表时间:
2006-06-13
影响因子:
11.1
作者:
Calderone, Christopher T.;Kowtoniuk, Walter E.;Dorrestein, Pieter C.
通讯作者:
Dorrestein, Pieter C.
影响因子:
3.5
作者:
Chang, ZX;Flatt, P;Sherman, DH
通讯作者:
Sherman, DH
影响因子:
2.8
作者:
Choi, Si-Sun;Hur, Yoon-Ah;Kim, Eung-Soo
通讯作者:
Kim, Eung-Soo