GDH活力：75～200units/mg protein (biuret)
TPI活力：750～2000 units/mg protein
活力定义：(TPI) One unit will convert 1.0 μmole of D-glyceraldehyde 3-phosphate to dihydroxyacetone phosphate per min at pH 7.6 at 25 °C；(α-GDH) One unit will convert 1.0 μmole of dihydroxyacetone phosphate to α-glycerophosphate per min at pH 7.4 at 25 °C
性状：悬浮液。Mixed crystalline suspension in 3.2 M (NH4)2SO4, pH 6
| α-甘油磷酸脱氢酶-磷酸丙糖异构酶 | GDH-TIM BR | 250U | ¥1500 |
