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抗痛素对大肠杆菌的致死作用:依赖于环腺苷酸3',5'-单磷酸及其受体蛋白。

Antipain lethality to Escherichia coli: dependence upon cyclic adenosine 3',5'-monophosphate and its receptor protein.

作者信息

Swenson P A

出版信息

J Bacteriol. 1979 Aug;139(2):690-3. doi: 10.1128/jb.139.2.690-693.1979.

Abstract

Antipain kills Escherichia coli K-12 cells in an exponential manner beginning 1 h after its addition. Mutant strains, delta cya and crp, which are unable to synthesize cyclic adenosine 3',5'-monophosphate (cAMP) and the cAMP receptor protein, respectively, are not affected. Addition of cAMP (5 mM) to antipain-treated mutant strains causes killing of delta cya cells, but not crp cells. Thus the lethal effect of antipain is dependent upon cAMP and its receptor protein.

摘要

抗痛素在添加后1小时开始以指数方式杀死大肠杆菌K-12细胞。分别无法合成环腺苷3',5'-单磷酸(cAMP)和cAMP受体蛋白的突变菌株delta cya和crp不受影响。向经抗痛素处理的突变菌株中添加cAMP(5 mM)会导致delta cya细胞死亡,但不会导致crp细胞死亡。因此,抗痛素的致死作用取决于cAMP及其受体蛋白。

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