. "Cytosolic triokinase catalyzes the reaction of ATP and D-glyceraldehyde to form ADP and D-glyceraldehyde 3-phosphate. No human triokinase enzyme has been characterized, and this reaction is inferred from studies of guinea pig liver fractions enriched in triokinase activity (Hers and Kusaka 1953)."^^ . . . . . . "ATP + D-glyceraldehyde => ADP + D-glyceraldehyde 3-phosphate"^^ . "2.7.1.28"^^ . . . . .