CATH Classification

Domain Context

CATH Clusters

Superfamily 3.40.50.2030
Functional Family Acetyl-CoA decarbonylase/synthase complex subunit alpha 1

Enzyme Information

1.2.7.4
Anaerobic carbon-monoxide dehydrogenase.
based on mapping to UniProt Q46G04
CO + H(2)O + 2 oxidized ferredoxin = CO(2) + 2 reduced ferredoxin + 2 H(+).
-!- This prokaryotic enzyme catalyzes the reversible reduction of CO(2) to CO. -!- The electrons are transferred to redox proteins such as ferredoxin. -!- In purple sulfur bacteria and methanogenic archaea it catalyzes the oxidation of CO to CO(2), which is incorporated by the Calvin-Benson- Basham cycle or released, respectively. -!- In acetogenic and sulfate-reducing microbes it catalyzes the reduction of CO(2) to CO, which is incorporated into acetyl CoA by EC 2.3.1.169, with which the enzyme forms a tight complex in those organisms. -!- In purple sulfur bacteria the enzyme forms complexes with the Ni-Fe-S protein EC 1.12.7.2 which catalyze the overall reaction: CO + H(2)O = CO(2) + H(2). -!- Cf. EC 1.2.5.3. -!- Formerly EC 1.2.99.2.

UniProtKB Entries (1)

Q46G05
ACDE1_METBF
Methanosarcina barkeri str. Fusaro
Acetyl-CoA decarbonylase/synthase complex subunit epsilon 1

PDB Structure

PDB 3CF4
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structure of the alpha2 epsilon2 Ni-dependent CO dehydrogenase component of the Methanosarcina barkeri acetyl-CoA decarboxylase/synthase complex
Gong, W., Hao, B., Wei, Z., Ferguson Jr., D.J., Tallant, T., Krzycki, J.A., Chan, M.K.
Proc.Natl.Acad.Sci.USA