sr1 br Heme and the HO system Heme a complex of
2022-01-03

Heme and the HO system
Heme, a complex of iron and protoporphyrin IX, has versatile functions, which are critical for the survival of all aerobic organisms including mammalians and bacteria [9]. The central iron in heme facilitates six ligand binding sites [10], four of which are occupied by nitr