Microbial
Record Information
Version2.0
StatusDetected and Quantified
Creation Date2022-06-17 20:12:14 UTC
Update Date2025-10-07 16:09:29 UTC
Metabolite IDMMDBc0055973
Metabolite Identification
Common NameFe-coproporphyrin III
DescriptionFe-coproporphyrin III is a metalloporphyrin belonging to the chemical class of porphyrins. This compound plays a critical role in heme biosynthesis, particularly in the conversion pathways leading to the formation of heme from coproporphyrinogen III. The process involves the action of coproporphyrin synthase HemY, which converts coproporphyrinogen III into coproporphyrin III, followed by the insertion of iron into coproporphyrin III via ferrochelatase HemH. Subsequently, Fe-coproporphyrin III is oxidatively decarboxylated into protohaem IX by Fe-coproporphyrin oxidase/dehydrogenase HemQ (PMID:25908396 ). Additionally, further modifications are carried out by radical SAM enzymes, AhbC and AhbD, which transform didecarboxysirohaem into Fe-coproporphyrin III and subsequently into heme (PMID:24865947 ). Notably, Fe-coproporphyrin III also serves as a heme cofactor in specific proteins, such as those isolated from the anaerobic bacterium Desulfovibrio desulfuricans, highlighting its importance in various biological systems (PMID:12627224 ).
Structure
Synonyms
ValueSource
Fe-coproporphyrin IIIChEBI
Molecular FormulaC36H32FeN4O8
Average Mass704.519
Monoisotopic Mass704.159144
IUPAC Namelambda2-iron(2+) ion 5,9,14,19-tetrakis(2-carboxyethyl)-4,10,15,20-tetramethyl-21,22,23,24-tetraazapentacyclo[16.2.1.1^{3,6}.1^{8,11}.1^{13,16}]tetracosa-1,3(24),4,6,8(23),9,11,13,15,17,19-undecaene-21,22-diide
Traditional Namelambda2-iron(2+) ion 5,9,14,19-tetrakis(2-carboxyethyl)-4,10,15,20-tetramethyl-21,22,23,24-tetraazapentacyclo[16.2.1.1^{3,6}.1^{8,11}.1^{13,16}]tetracosa-1,3(24),4,6,8(23),9,11,13,15,17,19-undecaene-21,22-diide
CAS Registry NumberNot Available
SMILES
[Fe++].[H]\C-1=C2\[N-]\C(=C([H])/C3=N/C(=C([H])\C4=N\C(=C([H])/C5=C(CCC([O-])=O)C(C)=C-1[N-]5)\C(C)=C4CCC([O-])=O)/C(CCC([O-])=O)=C3C)C(C)=C2CCC([O-])=O
InChI Identifier
InChI=1S/C36H38N4O8.Fe/c1-17-21(5-9-33(41)42)29-14-27-19(3)22(6-10-34(43)44)30(39-27)15-28-20(4)24(8-12-36(47)48)32(40-28)16-31-23(7-11-35(45)46)18(2)26(38-31)13-25(17)37-29;/h13-16H,5-12H2,1-4H3,(H6,37,38,39,40,41,42,43,44,45,46,47,48);/q;+2/p-6/b25-13-,26-13-,27-14-,28-15-,29-14-,30-15-,31-16-,32-16-;
InChI KeySXDINBXHOHHTMY-RGGAHWMASA-H