In proline degradation, the enzyme proline dehydrogenase produces P5C from proline, and the enzyme 1-pyrroline-5-carboxylate dehydrogenase converts GSA to glutamate.
In proline breakdown, the enzyme proline dehydrogenase generates P5C from proline, and the enzyme 1-pyrroline-5-carboxylate dehydrogenase transforms GSA to glutamate.