Phosphofructokinase: Difference between revisions
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Phosphofructokinase (PFK) is a fundamental [[Enzyme|enzyme]] in the [[Glycolitic pathway|glycolytic pathway]]. As the name suggests, the enzyme acts on the intermediate compound 'phosphofructose'; its proper name being [[Fructose-6-phosphate|fructose-6-phosphate]]. The suffix '[[Kinase|kinase]]' indicates its function as a phosphorylator. The product of this enzyme-subtrate interaction is [[Fructose-1,6-bisphosphate|fructose 1,6 bisphosphate]], which subsequently is [[Hydrolysed|hydrolysed]] to [[Glyceralaldehyde 3 phosphate|glyceralaldehyde 3 phosphate]] and [[Dihydroxyacetone phosphate|dihydroxyacetone phosphate]] | Phosphofructokinase (PFK) is a fundamental [[Enzyme|enzyme]] in the [[Glycolitic pathway|glycolytic pathway]]. As the name suggests, the enzyme acts on the intermediate compound 'phosphofructose'; its proper name being [[Fructose-6-phosphate|fructose-6-phosphate]]. The suffix '[[Kinase|kinase]]' indicates its function as a phosphorylator. The product of this enzyme-subtrate interaction is [[Fructose-1,6-bisphosphate|fructose 1,6 bisphosphate]], which subsequently is [[Hydrolysed|hydrolysed]] to [[Glyceralaldehyde 3 phosphate|glyceralaldehyde 3 phosphate]] and [[Dihydroxyacetone phosphate|dihydroxyacetone phosphate]]<ref>Phosphofructokinase - an overview | ScienceDirect Topics [Internet]. Sciencedirect.com. 2017 [cited 3 December 2017]. Available from: http://www.sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/phosphofructokinase</ref>. | ||
PFK is an [[Allosteric enzyme|allosteric enzyme]]; meaning that its action is regulated by activator and inhibitor effector molecules; in this case [[AMP|AMP]] and [[ATP|ATP]] respectively. | PFK is an [[Allosteric enzyme|allosteric enzyme]]; meaning that its action is regulated by activator and inhibitor effector molecules; in this case [[AMP|AMP]] and [[ATP|ATP]] respectively. | ||
Phosphofructokinase has antagonistic action with the enzyme [[Fructose 1,6-bisphosphatase|Fructose 1,6-bisphosphatase]]; a dephosphorylator | Phosphofructokinase has antagonistic action with the enzyme [[Fructose 1,6-bisphosphatase|Fructose 1,6-bisphosphatase]]; a dephosphorylator<ref>Berg J, Tymoczko J, Stryer L, Clarke N. Biochemistry. New York: W.H. Freeman; 2002.</ref>. | ||
=== References === | |||
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Latest revision as of 19:36, 4 December 2017
Phosphofructokinase (PFK) is a fundamental enzyme in the glycolytic pathway. As the name suggests, the enzyme acts on the intermediate compound 'phosphofructose'; its proper name being fructose-6-phosphate. The suffix 'kinase' indicates its function as a phosphorylator. The product of this enzyme-subtrate interaction is fructose 1,6 bisphosphate, which subsequently is hydrolysed to glyceralaldehyde 3 phosphate and dihydroxyacetone phosphate[1].
PFK is an allosteric enzyme; meaning that its action is regulated by activator and inhibitor effector molecules; in this case AMP and ATP respectively.
Phosphofructokinase has antagonistic action with the enzyme Fructose 1,6-bisphosphatase; a dephosphorylator[2].
References
- ↑ Phosphofructokinase - an overview | ScienceDirect Topics [Internet]. Sciencedirect.com. 2017 [cited 3 December 2017]. Available from: http://www.sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/phosphofructokinase
- ↑ Berg J, Tymoczko J, Stryer L, Clarke N. Biochemistry. New York: W.H. Freeman; 2002.