Propionyl - CoA is carboxylated to D - methylmalonyl - CoA , isomerized to L - methylmalonyl - CoA .
Propionyl - CoA is rearranged to yield succinyl - CoA via a vitamin B - dependent enzyme .
Propionyl - CoA is carboxylated to D - methylmalonyl - CoA , isomerized to L - methylmalonyl - CoA , and rearranged to yield succinyl - CoA via a vitamin B - dependent enzyme .