Cob(II)yrinic acid a,c-diamide reductase
In enzymology, a cob(II)yrinic acid a,c-diamide reductase (EC 1.16.8.1) is an enzyme that catalyzes the chemical reaction
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2 cob(I)yrinic acid a,c-diamide + FMN + 3 H+ 2 cob(II)yrinic acid a,c-diamide + FMNH2
| cob(II)yrinic acid a,c-diamide reductase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 1.16.8.1 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
The 3 substrates of this enzyme are cob(I)yrinic acid a,c-diamide, FMN, and H+, whereas its two products are cob(II)yrinic acid a,c-diamide and FMNH2.
Classification
This enzyme belongs to the family of oxidoreductases, specifically those oxidizing metal ion with a flavin as acceptor.
Nomenclature
The systematic name of this enzyme class is cob(I)yrinic acid-a,c-diamide:FMN oxidoreductase. This enzyme is also called cob(II)yrinic acid-a,c-diamide:FMN oxidoreductase (incorrect).
Biological role
This enzyme participates in porphyrin and chlorophyll metabolism.
References
- Blanche F, Maton L, Debussche L, Thibaut D (1992). "Purification and characterization of Cob(II)yrinic acid a,c-diamide reductase from Pseudomonas denitrificans". J. Bacteriol. 174 (22): 7452–4. PMC 207442. PMID 1429467.
- Warren MJ, Raux E, Schubert HL, Escalante-Semerena JC (2002). "The biosynthesis of adenosylcobalamin (vitamin B12)". Nat. Prod. Rep. 19 (4): 390–412. doi:10.1039/b108967f. PMID 12195810.
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