<prompt> Coenzyme for methylmalonyl-CoA isomeraseBiotinCobalamineThiamineNiacine  <response>: Methylmalonyl-CoA mutase is a vitamin B12- dependent enzyme, and in deficiency methylmalonic acid is excreted in the urine methylmalonic aciduria.Ref: Harpers Illustrated Biochemistry, 30th edition, page no: 187 