type Type III
form ammonium sulfate suspension
storage temp. 2-8°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.
(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.
Physical form
Mixed crystalline suspension in 3.2 M (NH4)2SO4, pH 6
Biochem/physiol Actions
α-Glycerophosphate Dehydrogenase-Triosephosphate Isomerase from rabbit muscle catalyzes the conversion of dihydroxyacetone to glycerol phosphate1.
α-glycerophosphate dehydrogenase (α-GPDH-EC.1.1.1.8) has been considered absent in Trypanosoma cruzi in contradiction with all other studied trypanosomatids. After observing that the sole malate dehydrogenase can not maintain the intraglycosomal redox balance, GPDH activity was looked for and found, although in very variable levels, in epimastigotes extracts. GPDH was shown to be exclusively located in the glycosome of T. cruzi by digitonin treatment and isopycnic centrifugation. Antibody against T. brucei GPDH showed that this enzyme seemed to be present in an essentially inactive form at the beginning of the epimastigotes growth. GPDH is apparently linked to a salicylhydroxmic-sensitive glycerophosphate reoxidizing system and plays an essential role in the glycosome redox balance.
More about: α-Glycerophosphate Dehydrogenase-Triosephosphate Isomerase from rabbit muscle sale
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