半胱氨酸不是詹氏噬纤维菌生物合成半胱氨酸盐过程中的必需中间体。
Cysteine is not an obligatory intermediate in the biosynthesis of cysteate by Cytophaga johnsonae.
作者信息
Gilmore D F, Godchaux W, Leadbetter E R
机构信息
Department of Molecular and Cell Biology, University of Connecticut, Storrs 06269-2131.
出版信息
Biochem Biophys Res Commun. 1989 Apr 28;160(2):535-9. doi: 10.1016/0006-291x(89)92465-0.
PMID:2541704
Abstract
A cysteine auxotroph of Cytophaga johnsonae was able to incorporate sulfur from sulfate into cysteate, and thus into sulfonolipid, in the absence of cysteine synthesis. This indicates that cysteine is not an obligatory intermediate of the cysteate biosynthetic pathway even though cysteine sulfur can be utilized for cysteate synthesis.
摘要
在缺乏半胱氨酸合成的情况下，约翰逊氏纤维粘菌的半胱氨酸营养缺陷型能够将硫酸盐中的硫掺入半胱氨酸盐，进而掺入硫脂。这表明，即使半胱氨酸中的硫可用于半胱氨酸盐的合成，但半胱氨酸并非半胱氨酸盐生物合成途径中的必需中间体。
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