Any of a number of compounds consisting of heme bonded to a protein. Cytochromes function as electron transfer agents in many metabolic pathways, especially cellular respiration.
- The majority of iron in humans is located in the porphyrin ring of heme that is incorporated into proteins and enzymes such as myoglobin, hemoglobin, cytochromes, catalases, and peroxidases.
- Hemoglobin, myoglobin, cytochromes, and other proteins are involved in oxygen transport and utilization.
- Iron is used in actively proliferating cells for cytochrome and DNA synthesis.
Definition of cytochrome in:
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