細胞色素複合體（英語：cytochrome complex）簡稱 細胞色素c（cyt c），是一種血红素蛋白（hemoprotein），屬於“细胞色素c家族”。細胞色素c會與粒線體內膜輕微連接，結構鬆散而微小的它和其他細胞色素不同，是一種高度可溶性蛋白，在水中的可溶性達每公升100克。細胞色素c是電子傳遞鏈不可或缺的元件，負責攜帶一粒電子，在複合物III和複合物IV之間傳遞。此外，它能夠接受氧化和還原反應，但不與氧結合。在人體中，細胞色素c已經由CYCS基因完成編碼。
細胞色素c和細胞程序性死亡有關。
交互作用
細胞色素c被證實會和COX4I2進行交互作用。
參考資料
延伸閱讀
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其他圖像
外部連結
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