The results indicated that the lysine residues in cytochrome C molecules combine with cystine slowly. It induced the small conformational change of cytochrome C molecules.

实验结果表明，胱氨酸分子与细胞色素C的赖氨酸残基缓慢结合，二者相互作用的最终结果使细胞色素C分子的构象发生了微小的变化。

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The researchers found that levels of a protein called cytochrome c increased with age in the normally-fed rats.

BBC: Elderly

The researchers also looked at another protein, called ARC, which plays a role in preventing the release of cytochrome C.

BBC: Elderly