化学
硫黄
细胞色素c
辅酶Q-细胞色素c还原酶
细胞色素
血红素
生物化学
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2017-06-23
卷期号:356 (6344): 1243-1245
标识
DOI:10.1126/science.356.6344.1243-n
摘要
Biochemistry
Cytochrome c enzymes have two distinct functions that depend on the position of a methionine residue. When the sulfur in the methionine side chain coordinates with iron in the enzyme's active site, the protein is optimized for electron transfer; otherwise, it is poised for peroxidase
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