N(6)-carboxybiotinyl-L-lysyl-[protein] + acetyl-CoA <=> N(6)-biotinyl-L-lysyl-[protein] + malonyl-CoA
n(6)-carboxybiotinyl-l-lysyl-[protein] + acetyl-coa <=> n(6)-biotinyl-l-lysyl-[protein] + malonyl-coa