3.1.3.21 2.4 - phosphate with L-glycerol-3-phosphate as substrate, at 30°C, pH 7.5, in 100 mM HEPES 730083 3.1.3.21 2.5 - phosphate with DL-glycerol-3-phosphate as substrate, at 30°C, pH 7.5, in 100 mM HEPES 730083