Difference between revisions of "Glyceraldehyde-3-phosphate dehydrogenase"

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== Rate equation ==
 
== Rate equation ==
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Ordererd Ter-Bi reversible Michaelis-Menten equation for non-interacting substrates. <ref name="Hernandez2011"> Marín-Hernández A, Gallardo-Pérez JC, Rodríguez-Enríquez S et al (2011) Modeling cancer glycolysis. Biochim Biophys Acta 1807:755–767 ([http://dx.doi.org/10.1016/j.bbabio.2010.11.006 doi])  </ref>
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<center><math>v = \frac{ V_{mf}\frac{[NAD][Gly3P][Pi]}{K_{NAD}K_{Gly3P}K_{Pi}} - V_{mr} \frac{[1,3BPG][NADH]}{K_{1,3BPG}K_{NADH}} }{1 + \frac{[NAD]}{K_{NAD}} + \frac{[NAD][Gly3P]}{K_{NAD}K_{Gly3P}} + \frac{[NAD][Gly3P][Pi]}{K_{NAD}K_{Gly3P}K_{Pi}} + \frac{[1,3BPG][NADH]}{K_{1,3BPG}K_{NADH}} + +\frac{[NADH]}{K_{NADH}} }</math></center>
 
<center><math>v = \frac{ V_{mf}\frac{[NAD][Gly3P][Pi]}{K_{NAD}K_{Gly3P}K_{Pi}} - V_{mr} \frac{[1,3BPG][NADH]}{K_{1,3BPG}K_{NADH}} }{1 + \frac{[NAD]}{K_{NAD}} + \frac{[NAD][Gly3P]}{K_{NAD}K_{Gly3P}} + \frac{[NAD][Gly3P][Pi]}{K_{NAD}K_{Gly3P}K_{Pi}} + \frac{[1,3BPG][NADH]}{K_{1,3BPG}K_{NADH}} + +\frac{[NADH]}{K_{NADH}} }</math></center>
  
 
== Parameters ==
 
== Parameters ==
 
== Alternate parameter values ==
 
== Alternate parameter values ==
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==References==
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<referenfces/>

Revision as of 15:26, 27 February 2014

This enzyme serves two functions in this step. First the enzyme transfers a hydrogen (H-) from glyceraldehyde phosphate to the oxidizing agent nicotinamide adenine dinucleotide (NAD+) to form NADH. Next it adds a phosphate (P) from the cytosol to the oxidized glyceraldehyde phosphate to form 1, 3-bisphosphoglycerate.

Chemical equation

 NAD + G3P + Pi \rightleftharpoons 1,3BPG + NADH

Rate equation

Ordererd Ter-Bi reversible Michaelis-Menten equation for non-interacting substrates. [1]

v = \frac{ V_{mf}\frac{[NAD][Gly3P][Pi]}{K_{NAD}K_{Gly3P}K_{Pi}} - V_{mr} \frac{[1,3BPG][NADH]}{K_{1,3BPG}K_{NADH}} }{1 + \frac{[NAD]}{K_{NAD}} + \frac{[NAD][Gly3P]}{K_{NAD}K_{Gly3P}} + \frac{[NAD][Gly3P][Pi]}{K_{NAD}K_{Gly3P}K_{Pi}} + \frac{[1,3BPG][NADH]}{K_{1,3BPG}K_{NADH}} + +\frac{[NADH]}{K_{NADH}} }

Parameters

Alternate parameter values

References

<referenfces/>
  1. Marín-Hernández A, Gallardo-Pérez JC, Rodríguez-Enríquez S et al (2011) Modeling cancer glycolysis. Biochim Biophys Acta 1807:755–767 (doi)