dihydroxyacetone phosphate + AH2 => sn-glycerol 3-phosphate + A
dihydroxyacetone phosphate + ah2 => sn-glycerol 3-phosphate + a
dihydroxyacetone phosphate + AH2 => sn-glycerol 3-phosphate + A
dihydroxyacetone phosphate + ah2 => sn-glycerol 3-phosphate + a