ID 1.5.1.48 DE 2-methyl-1-pyrroline reductase. AN (R)-imine reductase. CA (R)-2-methylpyrrolidine + NADP(+) = 2-methyl-1-pyrroline + H(+) + NADPH. CC -!- The enzyme from the bacterium Streptomyces sp. GF3587 is highly CC specific for its substrate and forms only the (R) isomer. //