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Annotation rule MF_01442
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General rule information [?]

Accession MF_01442
Dates 18-JUN-2007 (Created)
20-MAR-2020 (Last updated, Version 12)
Name Coproheme_decarbox_1
Scope
Bacteria; Terrabacteria group
Templates Q8Y5F1 (CHDC_LISMO); P39645 (CHDC_BACSU); Q2G0J1 (CHDC_STAA8); A6QEP0 (CHDC_STAAE); Q5SHL6 (CHDC_THET8); A0A0K2H9D8 (CHDC_GEOS3): [Recover all]
Triggered by

Propagated annotation [?]


Identifier, protein and gene names [?]

Identifier
CHDC
Protein name
RecName: Full=Coproheme decarboxylase;
EC 1.3.98.5;
AltName: Full=Coproheme III oxidative decarboxylase;
AltName: Full=Hydrogen peroxide-dependent heme synthase;
Gene name
chdC

Comments [?]

Function Involved in coproporphyrin-dependent heme b biosynthesis. Catalyzes the decarboxylation of Fe-coproporphyrin III (coproheme) to heme b (protoheme IX), the last step of the pathway. The reaction occurs in a stepwise manner with a three-propionate intermediate.
Catalytic activity RHEA:56516: Fe-coproporphyrin III + 2 H(+) + 2 H2O2 = 2 CO2 + 4 H2O + heme b
EC 1.3.98.5
PhysiologicalDirection=left-to-right (RHEA:56517)
RHEA:57940: Fe-coproporphyrin III + H(+) + H2O2 = CO2 + 2 H2O + harderoheme III
PhysiologicalDirection=left-to-right (RHEA:57941)
RHEA:57944: H(+) + H2O2 + harderoheme III = CO2 + 2 H2O + heme b
PhysiologicalDirection=left-to-right (RHEA:57945)
Cofactor Fe-coproporphyrin III
Note: Fe-coproporphyrin III acts as both substrate and redox cofactor;
Pathway Porphyrin-containing compound metabolism; protoheme biosynthesis.
Similarity Belongs to the ChdC family. Type 1 subfamily.

Keywords [?]

Heme
Heme biosynthesis
Iron
Metal-binding
Oxidoreductase

Gene Ontology [?]

GO:0016634; Molecular function: oxidoreductase activity, acting on the CH-CH group of donors, oxygen as acceptor.
GO:0006785; Biological process: heme B biosynthetic process.

Cross-references [?]

Pfam PF06778; Chlor_dismutase; 1;

Features [?]

From: CHDC_LISMO (Q8Y5F1)
Key     From     To       Description   Tag   Condition   FTGroup
REGION (Optional)     147     151       Fe-coproporphyrin III binding     Y-P-M-x-[KR]  
ACT_SITE     147     147             Y  
METAL     174     174       Iron (Fe-coproporphyrin III axial ligand)     H  
BINDING (Optional)     133     133       Fe-coproporphyrin III     R  
BINDING (Optional)     187     187       Fe-coproporphyrin III     Q  
BINDING (Optional)     225     225       Fe-coproporphyrin III     S  

Additional information [?]

Size range 220-290 amino acids
Related rules None
Fusion None


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