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  • F0137 - Fructose-6-phosphate Kinase from Bacillus stearothermophilus

F0137 Sigma-Aldrich

Fructose-6-phosphate Kinase from Bacillus stearothermophilus

Type VII, lyophilized powder, ≥50 units/mg protein

Synonym: 6-Phosphofructokinase, ATP:D-fructose 6-phosphate 1-phosphotransferase




100, 250 units in glass bottle

Unit Definition

One unit will convert 1.0 μmole of fructose 6-phosphate and ATP to fructose 1,6-diphosphate and ADP per minute at pH 9.0 at 30 °C.

Physical form

Lyophilized powder containing phosphate buffer salt


Fructose-6-phosphate Kinase from Bacillus stearothermophilus was shown to interact with neuronal nitric oxide synthase (nNOS) causing a defect in glycolytic metabolism and increased fatigability in dystrophic muscle.

Fructose-6-phosphate kinase from Bacillus stearothermophilus has been used:
• in steady state analysis of phosphofructokinase activity in the presence of ATP deuterated at the C8 position(C8-D ATP)
• for standard curve generation for quantifying muscle phosphofructokinase (PFK) activity

Biochem/physiol Actions

Fructose-1,6-bisphosphatase (FBP) is an important enzyme in glucose metabolism. It catalyzes the hydrolysis of fructose-1,6-bisphosphate to fructose-6-phosphate and inorganic phosphate. Fructose-6-phosphate kinase converts fructose-6-phosphate into fructose 1,6-bisphophate in the rate limiting step of the glycolysis cycle.

General description

Bacillus stearothermophilus phosphofructokinase (BsPFK) is a homotetramer that is allosterically inhibited by phosphoenolpyruvate (PEP), which binds along one dimer-dimer interface.

Fructose-6-phosphate kinase from Bacillus stearothermophilus, a 34 kDa enzyme, belongs to phosphofructokinase (PFK) - like superfamily. The glutamate 161 and arginine 162 residues at the active site are crucial for substrate binding.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Protocols & Articles

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