1.5.1.B5 23.9 - purified recombinant wild-type enzyme, pH 6.5, 50°C, substrate 1-pyrroline-2-carboxylate 742532 1.5.1.B5 239 - purified recombinant mutant V224D/A228K enzyme, pH 6.5, 50°C, substrate 1-pyrroline-2-carboxylate 742532