Difference between revisions of "Phosphofructokinase type 1"
| Line 10: | Line 10: | ||
<center><math> | <center><math> | ||
| − | \left(\left(\frac{\frac{[ATP]}{K_{ATP}}}{1 + \frac{[ATP]}{K_{ATP}} }\right) \right) | + | \left(\left(\frac{\frac{[ATP]}{K_{ATP}}}{1 + \frac{[ATP]}{K_{ATP}} }\right) \left( \frac{ 1 + \frac{\beta Fru2,6BP}{ \alpha Ka_{Fru2,6BP} } }{ 1 + \frac{Fru2,6BP}{ \alpha Ka_{Fru2,6BP} } } \right) \right) |
</math></center> | </math></center> | ||
Revision as of 15:23, 26 February 2014
The enzyme Phosphofructokinase Type-1 uses another ATP molecule to transfer a phosphate group to fructose 6-phosphate to form fructose 1, 6-bisphosphate. PFK-1 is an allosteric enzyme showing cooperative behaviour with Fru6P and hyperbolic kinetics with ATP.
Chemical equation
Rate equation
The concerted transition model of Monod, Wyman and Changeux (MWC model) is used as a rate equation for this tetrameric enzyme for considering exclusive ligand binding (F6P, activators and inhibitors) together with mixed type activation, (Fru2,6BP or AMP or Pi).
![\left(\left(\frac{\frac{[ATP]}{K_{ATP}}}{1 + \frac{[ATP]}{K_{ATP}} }\right) \left( \frac{ 1 + \frac{\beta Fru2,6BP}{ \alpha Ka_{Fru2,6BP} } }{ 1 + \frac{Fru2,6BP}{ \alpha Ka_{Fru2,6BP} } } \right) \right)](/wiki/images/math/0/0/c/00cbb41f7c72ecff35315f4b6a8d6044.png)
