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F0137

Sigma-Aldrich

Fructose-6-phosphate Kinase from Bacillus stearothermophilus

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

Synonym(s):

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

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About This Item

CAS Number:
Enzyme Commission number:
EC Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54

type

Type VII

Quality Level

form

lyophilized powder

specific activity

≥50 units/mg protein

mol wt

34 kDa

shipped in

wet ice

storage temp.

−20°C

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.

Application

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.

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 buffer salt (e.g. phosphate buffer, or Tris buffer with NaCl)

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Loss of positive allosteric interactions between neuronal nitric oxide synthase and phosphofructokinase contributes to defects in glycolysis and increased fatigability in muscular dystrophy
Wehling-Henricks M, et al.
Human Molecular Genetics, 18(18), 3439-3451 (2009)
Rockann Mosser et al.
Biochemistry, 52(32), 5421-5429 (2013-07-19)
Bacillus stearothermophilus phosphofructokinase (BsPFK) is a homotetramer that is allosterically inhibited by phosphoenolpyruvate (PEP), which binds along one dimer-dimer interface. The substrate, fructose 6-phosphate (Fru-6-P), binds along the other dimer-dimer interface. Evans et al. observed that the structure with inhibitor
Analysis of the phosphofructokinase subunits and isoenzymes in human tissues
G.A. Dunaway et al.
The Biochemical Journal, 251, 755-757 (1988)
Chunsheng Liu et al.
American journal of physiology. Gastrointestinal and liver physiology, 307(7), G749-G759 (2014-08-30)
Platelet-derived growth factor (PDGF) and transforming growth factor-β (TGF-β) signaling are required for hepatic stellate cell (HSC) activation under pathological conditions such as liver metastatic tumor growth. These two signaling pathways are functionally divergent; PDGF signaling promotes proliferation and migration
M Hattori et al.
Nature, 405(6784), 311-319 (2000-06-01)
Chromosome 21 is the smallest human autosome. An extra copy of chromosome 21 causes Down syndrome, the most frequent genetic cause of significant mental retardation, which affects up to 1 in 700 live births. Several anonymous loci for monogenic disorders

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