Exact Mass: 852.3635148000001
Exact Mass Matches: 852.3635148000001
Found 13 metabolites which its exact mass value is equals to given mass value 852.3635148000001,
within given mass tolerance error 0.01 dalton. Try search metabolite list with more accurate mass tolerance error
0.001 dalton.
Heme A
Heme A differs from heme B in that a methyl side chain at ring position 8 is oxidized into a formyl group, and one of the vinyl side chains, at ring position 2, has been replaced by an isoprenoid chain. Like heme B, heme A is often attached to the apoprotein (cytochromes or globins) through a coordination bond between the heme iron and a conserved amino acid side-chain. An example of a metalloprotein that contains heme A is cytochrome c oxidase. Both the formyl group and the isoprenoid side chain are thought to play important roles in conservation of the energy of oxygen reduction by cytochrome c oxidase.(Wikipedia). Heme A differs from heme B in that a methyl side chain at ring position 8 is oxidized into a formyl group, and one of the vinyl side chains, at ring position 2, has been replaced by an isoprenoid chain. Like heme B, heme A is often attached to the apoprotein (cytochromes or globins) through a coordination bond between the heme iron and a conserved amino acid side-chain. An example of a metalloprotein that contains heme A is cytochrome c oxidase. Both the formyl group and the isoprenoid side chain are thought to play important roles in conservation of the energy of oxygen reduction by cytochrome c oxidase. [HMDB]
