Gvozdev R I, Nikonova E L, Piliashenko-Novokhatnyi A I, Shushenacheva E V, Grigorian A N
Biokhimiia. 1982 Jul;47(7):1118-24.
The cytochrome c spectrally related to cco cytochromes has been isolated and purified from the methane-oxidizing bacterium Methylococcus capsulatus. The cytochrome binds CO but does not bind other substrates of methane monooxygenase, does not activate the methane monooxygenase reaction and is not a component of methane monooxygenase. In the methanol dehydrogenase enzymatic system cytochrome cco functions as electron acceptor. A possible role of cytochrome cco as electron carrier intermediate in the sequence of the dehydrogenase and oxidase enzymatic systems of M. capsulatus is discussed.
已从甲烷氧化细菌荚膜甲基球菌中分离并纯化出与细胞色素c氧化酶(cco)光谱相关的细胞色素c。该细胞色素能结合一氧化碳,但不结合甲烷单加氧酶的其他底物,不激活甲烷单加氧酶反应,也不是甲烷单加氧酶的组成成分。在甲醇脱氢酶酶促系统中,细胞色素cco作为电子受体发挥作用。本文讨论了细胞色素cco作为荚膜甲基球菌脱氢酶和氧化酶酶促系统序列中电子载体中间体的可能作用。