Heme A-Containing Cytochromes

Cytochromes are classified according to the hemes as the prosthetic group. Most cytochromes having heme A show activity to reduce molecular oxygen except for [Pg.11]

Heme Cytochrome Molecular mass of monomer (kDa) Characteristics [Pg.13]

A aa 3 67 (86.5) (N. winogradskyi) Cytochrome c oxidase without proton pumping activity. Contains 2 heme A molecules and 2 Cu atoms [Pg.13]

B b 50 Electron transfer component. Contains 2 heme B molecules and occurs as cytochrome bCi [Pg.13]

C c 12.4 (N. winogradskyi) Electron transfer component. Contains 1 heme C molecule [Pg.13]

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