Carboxybiotin decarboxylase

Carboxybiotin decarboxylase (, MadB, carboxybiotin protein decarboxylase) is an enzyme with systematic name carboxybiotinyl-(protein) carboxy-lyase. This enzyme catalyses the following chemical reaction


 * a carboxybiotinyl-[protein] + n Na+in + H+out $$\rightleftharpoons$$ CO2 + a biotinyl-[protein] + n Na+out (n = 1--2)

This enzyme is an integral membrane protein MadB from the anaerobic bacterium Malonomonas rubra.

Nomenclature
This enzyme was previously classified as.