Molecular complexes between cytochrome b2. (Yeast L(+)lactate: cytochrome c oxidoreductase) and cytochrome c in crystalline state and in solution.
Molecular complexes between cytochrome b2. (Yeast L(+)lactate: cytochrome c oxidoreductase) and cytochrome c in crystalline state and in solution.
复制标题
细胞色素 b2 之间的分子复合物。
DOI：
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发表时间：
1971
期刊：
影响因子：
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通讯作者：
F. Labeyrie
中科院分区：
文献类型：
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作者：
A. Baudras;M. Krupa;F. Labeyrie
在结晶状态和溶液中，细胞色素 b2（酵母 L-乳酸：细胞色素 c 氧化还原酶）与细胞色素 c（来自马心或酵母）形成非常稳定的复合物。该复合物的特征在于细胞色素c/细胞色素b2血红素比率约为0.25，其对应于一个细胞色素c分子与一个四血红素酶单元的结合。它的形成对 pH 值敏感，可被盐阻止，但不会被抗霉素 A 阻止。细胞色素 b2 的辅基黄素基团不是细胞色素 c 结合所必需的。
In the crystalline state and in solution, cytochrome b2 (yeast l-lactate: cytochrome c oxidoreductase) is shown to form a very stable complex with cytochrome c (from horse heart or yeast). This complex is characterized by a cytochrome c/cytochrome b2 heme ratio of about 0.25 which corresponds to the binding of one cytochrome c molecule to one tetraheme enzyme unit. Its formation is pH sensitive and prevented by salts but not by antimycin A. The prosthetic flavin group of cytochrome b2 is not required for the binding of cytochrome c.