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 => dihydroxyacetone phosphate + ah2