Reaction catalyzed by proline dehydrogenase (1.5.5.2), proline dehydrogenase (acceptor) (1.5.99.B2)

		+		oxidized phenazine methosulfate	=			+
	L-proline	+		oxidized phenazine methosulfate	=		(S)-1-pyrroline-5-carboxylate	+		reduced phenazine methosulfate