a ubiquinone + L-proline <=> (S)-1-pyrroline-5-carboxylate + a ubiquinol + H(+)
a ubiquinone + l-proline <=> (s)-1-pyrroline-5-carboxylate + a ubiquinol + h(+)
a ubiquinone + L-proline <=> (S)-1-pyrroline-5-carboxylate + a ubiquinol + H(+)
a ubiquinone + l-proline <=> (s)-1-pyrroline-5-carboxylate + a ubiquinol + h(+)