| Glycine combines with succinyl CoA to generate delta aminolevulinic acid catalysed by the enzyme ALA synthase. |
| Then succinyl free radicals decays in one of the recombination reactions. |
| Adenosylcobalamin is required for conversion of methylmalonyl CoA to succinyl CoA and abnormality in this will lead to fatty acid accumulation. |
| Propionyl CoA is converted to L-methylmalonyl CoA and the mutase converts this to succinyl CoA, which is part of the tricarboxylic acid cycle of metabolism. |
