A hemoprotein (also haemoprotein), or heme protein, is a metalloprotein containing a heme prosthetic group, either covalently or noncovalently bound to the protein itself. The iron in the heme is capable of undergoing oxidation and reduction (usually to +2 and +3, though stabilized ferryl ^* compounds are well known in the peroxidases).

Roles

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Hemoproteins are found in such diverse roles as:

• transport
  • hemoglobin
  • myoglobin
  • neuroglobin
  • cytoglobin
  • leghemoglobin
• catalysis
  • peroxidases
• active membrane transport
  • cytochromes
• electron transfer
  • cytochrome c

Hemoproteína | hémoprotéine

Hemoproteins