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Cat No.
DIA-403
Description
Phosphofructokinase is a kinase enzyme that phosphorylates fructose 6-phosphate in glycolysis. The enzyme-catalysed transfer of a phosphoryl group from ATP is an important reaction in a wide variety of biological processes. One enzyme that utilizes this reaction is phosphofructokinase (PFK), which catalyses the phosphorylation of fructose-6-phosphate to fructose-1,6-bisphosphate, a key regulatory step in the glycolytic pathway. PFK exists as a homotetramer in bacteria and mammals (where each monomer possesses 2 similar domains) and as an octomer in yeast (where there are 4 alpha-(PFK1) and 4 beta-chains (PFK2), the latter, like the mammalian monomers, possessing 2 similar domains[3]). This protein may use the morpheein model of allosteric regulation.
Abbr
PFK, Native (Thermophillic bacteria)
Alias
PFK
Species
Thermophillic bacteria
Form
Frozen Liquid
Enzyme Commission Number
EC 2.7.1.11
Unit Definition
One unit is defined as the amount of enzyme oxidizing 1 μmol of NADH (ε340=6.22 mM-1 cm-1) per 1 minute using fructose 6-phosphate as a substrate.
Optimum pH
10.5
Thermal stability
100% stability after 1 hour at 80°C
Applications
Diagnostic tests
Synonyms
PFKWII; EC 2.7.1.11; PFK; phosphofructokinase; 6-phosphofructokinase; Phosphofructokinase I; Phosphohexokinase
