ID 7.2.4.1 DE carboxybiotin decarboxylase. AN carboxybiotin protein decarboxylase. CA H(+) + N(6)-carboxybiotinyl-L-lysyl-[protein] + n Na(+)(in) = CO2 + N(6)- CA biotinyl-L-lysyl-[protein] + n Na(+)(out). CC -!- The integral membrane protein MadB from the anaerobic bacterium CC Malonomonas rubra is a component of the multienzyme complex CC EC 4.1.1.89. CC -!- The free energy of the decarboxylation reaction is used to pump Na(+) CC out of the cell. CC -!- The enzyme is a member of the Na(+)-translocating decarboxylase CC family, other members of which include EC 7.2.4.2 and EC 7.2.4.3. CC -!- Formerly EC 4.3.99.2. DR O06923, MADB_MALRU ; //