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兼性甲基营养菌假单胞菌AM1中两种细胞色素b的存在

The presence of two cytochromes b in the facultative methylotroph Pseudomonas AM1.

作者信息

Keevil C W, Anthony C

出版信息

Biochem J. 1979 Apr 15;180(1):237-9. doi: 10.1042/bj1800237.

Abstract

Two cytochromes b with absorption maxima at 555 and 562 nm and differing in their mid-point redox potentials are synthesized in Pseudomonas AM1 during growth on methanol or succinate in batch culture, or in NH4+-limited or carbon-limited continuous culture. Both cytochromes b were also present in a cytochrome c-deficient mutant in all growth conditions.

摘要

在分批培养中,以甲醇或琥珀酸盐为生长底物时,或者在NH4+限制或碳限制的连续培养中,假单胞菌AM1会合成两种细胞色素b,其吸收最大值分别在555和562nm,且中点氧化还原电位不同。在所有生长条件下,这两种细胞色素b也存在于细胞色素c缺陷型突变体中。

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