EC Number   |
Reaction |
Reference |
|---|
    7.2.4.5 | (2E)-4-carboxybut-2-enoyl-CoA + Na+[side 1] = (2E)-but-2-enoyl-CoA + CO2 + Na+[side 2] |
energetics |
648362 |
| 7.2.4.5 | (2E)-4-carboxybut-2-enoyl-CoA + Na+[side 1] = (2E)-but-2-enoyl-CoA + CO2 + Na+[side 2] |
mechanism of carboxy-transfer |
648363 |
| 7.2.4.5 | (2E)-4-carboxybut-2-enoyl-CoA + Na+[side 1] = (2E)-but-2-enoyl-CoA + CO2 + Na+[side 2] |
mechanism, interaction of subunits |
648360 |
| 7.2.4.5 | (2E)-4-carboxybut-2-enoyl-CoA + Na+[side 1] = (2E)-but-2-enoyl-CoA + CO2 + Na+[side 2] |
stereochemistry |
648357 |
| 7.2.4.5 | (2E)-4-carboxybut-2-enoyl-CoA + Na+[side 1] = (2E)-but-2-enoyl-CoA + CO2 + Na+[side 2] |
the enzyme from Acidaminococcus fermentans is a biotinyl-protein, requires Na+, and acts as a sodium pump. Prior to the Na+-dependent decarboxylation, the carboxlate is transferred to biotin in a Na+-independent manner. The conserved lysine, to which biotin forms an amine 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 |
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