Bacillithiol is an antioxidant thiol produced in Bacilli.

Bacillithiol is an antioxidant thiol produced in Bacilli.
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DOI:
10.1038/nchembio.189
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发表时间:
2009-09
影响因子:
14.8
通讯作者:
Fahey, Robert C.
Fahey, Robert C.
中科院分区:
生物学1区
文献类型:
--
作者:
Newton, Gerald L.;Rawat, Mamta;La Clair, James J.;Jothivasan, Vishnu Karthik;Budiarto, Tanya;Hamilton, Chris J.;Claiborne, Al;Helmann, John D.;Fahey, Robert C.

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谷氨酸是一种几乎普遍存在的低分子量硫醇和抗氧化剂,尽管它在大多数革兰氏阳性细菌中明显缺乏。我们在这里确定的结构bacillithiol,一种新的和丰富的硫醇产生的芽孢杆菌属,金黄色葡萄球菌,和耐辐射异常球菌。Bacillithiol是l-半胱氨酰-d-葡萄糖胺与l-苹果酸的α-异头糖苷,可能用作抗氧化剂。Bacillithiol,像结构相似的mycothiol,可以作为谷胱甘肽的替代品。
Glutathione is a nearly ubiquitous low-molecular-weight thiol and antioxidant, although it is conspicuously absent from most Gram-positive bacteria. We identify here the structure of bacillithiol, a novel and abundant thiol produced by Bacillus species, Staphylococcus aureus, and Deinococcus radiodurans. Bacillithiol is the α-anomeric glycoside of l-cysteinyl-d-glucosamine with l-malic acid and likely functions as an antioxidant. Bacillithiol, like structurally similar mycothiol, may serve as a substitute for glutathione.
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