Regioselectivity of the oxidative C-S bond formation in ergothioneine and ovothiol biosyntheses.
Regioselectivity of the oxidative C-S bond formation in ergothioneine and ovothiol biosyntheses.
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DOI:
10.1021/ol402275t
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发表时间:
2013-09-20
期刊:
影响因子:
5.2
通讯作者:
Liu, Pinghua
中科院分区:
文献类型:
--
作者:
Song, Heng;Leninger, Maureen;Lee, Norman;Liu, Pinghua
Ergothioneine (5) and ovothiol (8) are two novel thiol-containing natural products. Their C-S bonds are formed by oxidative coupling reactions catalyzed by EgtB and OvoA enzymes, respectively. In this work, it was discovered that besides catalyzing the oxidative coupling between histidine and cysteine (1 → 6 conversion), OvoA can also catalyze a direct oxidative coupling between hercynine (2) and cysteine (2 → 4 conversion), which can shorten the ergothioneine biosynthetic pathway by two steps.
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