|Superclasses:||Reactions Classified By Conversion Type → Simple Reactions → Chemical Reactions|
|Reactions Classified By Substrate → Small-Molecule Reactions|
EC Number: 22.214.171.124
The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the direction in which it was curated.
Most BioCyc compounds have been protonated to a reference pH value of 7.3, and some reactions have been computationally balanced for hydrogen by adding free protons. Please see the PGDB Concepts Guide for more information.
Mass balance status: Balanced.
Enzyme Commission Primary Name: glutaconyl-CoA decarboxylase
Enzyme Commission Synonyms: glutaconyl coenzyme A decarboxylase, pent-2-enoyl-CoA carboxy-lyase, 4-carboxybut-2-enoyl-CoA carboxy-lyase
Standard Gibbs Free Energy (ΔrG'° in kcal/mol): -1.779419 [Latendresse13]
Enzyme Commission Summary:
The enzyme from Acidaminococcus fermentans is a biotinyl-protein, requires Na+, and acts as a sodium pump. Prior to the Na+-dependent decarboxylation, the carboxylate is transferred to biotin in a Na+-independent manner. The conserved lysine, to which biotin forms an amide bond, is located 34 amino acids before the C-terminus, flanked on both sides by two methionine residues, which are conserved in every biotin-dependent enzyme.
Buckel83: Buckel W, Semmler R (1983). "Purification, characterisation and reconstitution of glutaconyl-CoA decarboxylase, a biotin-dependent sodium pump from anaerobic bacteria." Eur J Biochem 1983;136(2);427-34. PMID: 6628393
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