Definition of cytochrome in English:



  • 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.’
    • ‘Our first protein target was cytochrome c because it contains a positively charged surface made up of several lysine and arginine residues.’
    • ‘Respiration in wheat endosperm was measured together with the activities of citrate synthase and cytochrome oxidase.’



/ˈsīdəˌkrōm/ /ˈsaɪdəˌkroʊm/