EC Number |
KM Value [mM] |
KM Value Maximum [mM] |
Substrate |
Reference |
---|
1.2.1.12 | -999 |
- |
more |
- |
287909, 287920, 287932, 287950 |
1.2.1.12 | -999 |
- |
more |
activity depends non-linearly on protein concentration in the range 0.00003-0.003 mM. With increasing concentrations the apparently hyperbolic substrate saturation curves turn into sigmoidal ones |
287953 |
1.2.1.12 | -999 |
- |
more |
enzyme kinetics, the recombinant enzyme exhibits about 6fold higher Km value toward 1,3-bisPGA compared to Ga3P. kcat in the way of Ga3P oxidation is about 5fold higher than in the opposite direction, thus resulting in a similar catalytic efficiency (kcat/Km) of the enzyme for the forward and the reverse reactions |
762770 |
1.2.1.12 | -999 |
- |
more |
kinetic analysis and thermodynamics of purified euthermic and torpid enzyme |
743402 |
1.2.1.12 | -999 |
- |
more |
kinetic isotope effects. The enzyme exhibits a kinetic mechanism in which first NAD+, then D-glyceraldehyde 3-phosphate bind to the active site resulting in the formation of a covalently bound thiohemiacetal intermediate. After oxidation of the thiohemiacetal and subsequent nucleotide exchange (NADH off, NAD+ on), the binding of inorganic phosphate and phosphorolysis yields the product 3-phospho-D-glyceroyl phosphate. Solvent and multiple kinetic isotope effects revealed that the first halfreaction is rate limiting and utilizes a step-wise mechanism for thiohemiacetal oxidation via a transient alkoxide to promote hydride transfer and thioester formation. steady-state kinetics |
741758 |
1.2.1.12 | -999 |
- |
more |
kinetics, overview |
742014 |
1.2.1.12 | -999 |
- |
more |
Michaelis-Menten kinetics |
743738, 763540 |
1.2.1.12 | -999 |
- |
more |
the enzyme presents allosteric positive cooperativity for substrates NAD+ and D-glyceraldehyde 3-phosphate, kinetic analysis, overview |
743740 |
1.2.1.12 | -999 |
- |
more |
the mammalian enzyme shows negative cooperativity |
743613 |
1.2.1.12 | -999 |
- |
more |
the recombinant protein shows no cooperativity towards glyceraldehyde 3-phosphate as a substrate, Michaelis-Menten kinetics with glyceraldehyde 3-phosphate as a substrate |
741965 |