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Cytochromes

Heme-containing proteins that serve as electron carriers.

Iron-porphyrin proteins that transfer electrons by iron's reversible Fe2+/Fe3+ cycling. Components of the electron transport chain (cytochromes b, c, c1, a, a3) and the cytochrome P450 system that metabolizes xenobiotics.

How one textbook covers it

  • Advanced Nutrition and Human Metabolism, 8th ed. (Gropper) — Glossary

    Iron-porphyrin proteins that transfer electrons by iron's reversible Fe2+/Fe3+ cycling. Components of the electron transport chain (cytochromes b, c, c1, a, a3) and the cytochrome P450 system that metabolizes xenobiotics.

Related terms

Electron transport chain, Oxidative phosphorylation