4-hydroxy-1-pyrroline-2-carboxylate + AH2 + H(+) => cis-4-hydroxy-D-proline + A
4-hydroxy-1-pyrroline-2-carboxylate + ah2 + h(+) => cis-4-hydroxy-d-proline + a
4-hydroxy-1-pyrroline-2-carboxylate + AH2 + H(+) => cis-4-hydroxy-D-proline + A
4-hydroxy-1-pyrroline-2-carboxylate + ah2 + h(+) => cis-4-hydroxy-d-proline + a