Hemoprotein
From Wikipedia, the free encyclopedia
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 [Fe+4] compounds are well known in the peroxidases).
[edit] Roles
Hemoproteins have diverse biological functions including:
- oxygen transport
- catalysis
- peroxidases
- cytochrome c oxidase
- ligninases
- active membrane transport
- electron transfer
- Sensory
- FixL (Oxygen sensor)
- sGC (Nitric Oxide sensor)
- CooA (CO sensor)
[edit] External links
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