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. Heme A, often appears a dichroic green/red when in solution, is a structural relative of heme B, a component of hemoglobin, the red pigment in blood.

Heme A
Names
Other names
Iron cytoporphyrin IX, formilporphyrin
Identifiers
3D model (JSmol)
ChemSpider
MeSH Heme+a
PubChem CID
  • InChI=1S/C49H59N4O6.Fe/c1-9-34-31(6)39-25-45-49(46(55)18-12-17-30(5)16-11-15-29(4)14-10-13-28(2)3)33(8)40(52-45)24-44-37(27-54)36(20-22-48(58)59)43(53-44)26-42-35(19-21-47(56)57)32(7)38(51-42)23-41(34)50-39;/h9,13,15,17,23-27,43,46,55H,1,10-12,14,16,18-22H2,2-8H3,(H4-,50,51,52,53,56,57,58,59);/q-1;+2/p-2/b29-15+,30-17+,42-26-; Y
    Key: RRRJRRNGYOECDS-ZHOBENDVSA-L Y
  • InChI=1/C49H59N4O6.Fe/c1-9-34-31(6)39-25-45-49(46(55)18-12-17-30(5)16-11-15-29(4)14-10-13-28(2)3)33(8)40(52-45)24-44-37(27-54)36(20-22-48(58)59)43(53-44)26-42-35(19-21-47(56)57)32(7)38(51-42)23-41(34)50-39;/h9,13,15,17,23-27,43,46,55H,1,10-12,14,16,18-22H2,2-8H3,(H4-,50,51,52,53,56,57,58,59);/q-1;+2/p-2/b29-15+,30-17+,42-26-;/rC49H57FeN4O6/c1-9-34-31(6)39-25-45-49(46(56)18-12-17-30(5)16-11-15-29(4)14-10-13-28(2)3)33(8)40-24-44-37(27-55)36(20-22-48(59)60)43-26-42-35(19-21-47(57)58)32(7)38-23-41(34)51(39)50(52(38)42,53(40)45)54(43)44/h9,13,15,17,23-27,43,46,56H,1,10-12,14,16,18-22H2,2-8H3,(H,57,58)(H,59,60)/q-1/b29-15+,30-17+
    Key: RRRJRRNGYOECDS-DRKRPJRXBB
SMILES
  • OC(=O)CC/c6c(\C)c3n7c6cc2c(/CCC(O)=O)c(/C=O)c1cc5n8c(cc4n([Fe]78n12)c(c=3)c(C=C)c4c)c(\C(O)CC\C=C(/C)CC\C=C(/C)CC\C=C(C)/C)c5\C
Properties
C49H56O6N4Fe
Molar mass 852.837
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is YN ?)
Infobox references
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