Heme A

Heme A (or haem A) is a heme, a coordination complex consisting of a macrocyclic ligand called a porphyrin, chelating an iron atom. Heme A is a biomolecule and is produced naturally by many organisms.

Read more about Heme A:  Relationship To Other Hemes, History, Stereochemistry

Other articles related to "heme a, heme":

Heme A - Stereochemistry
... Like heme B, heme A is often attached to the apoprotein through a coordinate bond between the heme iron and a conserved amino acid side-chain ... important respiratory protein cytochrome c oxidase (CCO) this ligand 5 for the heme A at the oxygen reaction center is a histidyl group ... example of a metalloprotein that contains heme A is cytochrome c oxidase ...