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Key Documents

P1903

Sigma-Aldrich

Pyruvate Kinase from Bacillus stearothermophilus

Type VIII, lyophilized powder, 100-300 units/mg protein

Synonyme(s) :

ATP:pyruvate 2-O-phosphotransferase, PK

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About This Item

Numéro CAS:
Numéro de classification (Commission des enzymes):
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352204
eCl@ss :
32160410
Nomenclature NACRES :
NA.54

Source biologique

Bacillus sp. (B. stearothermophilus)

Niveau de qualité

Type

Type VIII

Forme

lyophilized powder

Activité spécifique

100-300 units/mg protein

Température de stockage

2-8°C

Description générale

Research Area: CELL SIGNALING
Mammalian pyruvate kinase is a tetrameric protein composed of identical subunits organized in a dimer-of-dimers configuration. Four isoforms of pyruvate kinase exist in mammals, namely PKM1, PKM2, PKR, and PKL. Pyruvate kinase can be found in both tetrameric and dimeric forms.

Application

Pyruvate Kinase from Bacillus stearothermophilus may be used in biofuel production.
Pyruvate kinase from Bacillus stearothermophilus has been used in a study to assess evidence that the genes for phosphofructokinase and pyruvate kinase constitute an operon. It has also been used in a study to investigate the importance of the Lys221 active site for pyruvate kinase activity.

Actions biochimiques/physiologiques

Pyruvate Kinase from Bacillus stearothermophilus is activated by AMP and ribose 5-phosphate.
Pyruvate kinase is an enzyme that facilitates the conversion of phosphoenolpyruvate (PEP) and ADP to pyruvate and ATP in glycolysis and is involved in the regulation of cell metabolism. It serves as a terminal enzyme in the glycolytic pathway. This reaction is favorable due to the high energy of hydrolysis of PEP.
Pyruvate kinase is a key regulator controlling metabolic flux and ATP production in glycolysis and is considered a potential drug target. Additionally, pyruvate kinases are subject to regulation by heterotropic effectors, with fructose 1,6-bisphosphate (FBP) being the most widely known allosteric activator of bacterial, yeast, and mammalian enzymes. Furthermore, PKM2, one of the four isoforms of pyruvate kinase, is extensively expressed in various types of tumors and is associated with tumorigenesis.

Définition de l'unité

One unit will convert 1.0 μmole of phospho(enol)pyruvate to pyruvate per min at pH 7.2 at 30 °C.

Forme physique

Lyophilized powder containing Tris buffer salts, pH 8.5

Remarque sur l'analyse

Protein determined by biuret

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Molecular cloning and nucleotide sequence of the gene for pyruvate kinase of Bacillus stearothermophilus and the production of the enzyme in Escherichia coli. Evidence that the genes for phosphofructokinase and pyruvate kinase constitute an operon
Sakai, H. and T. Ohta
FEBS Journal, 211, 851-859 (1993)
An overview of structure, function, and regulation of pyruvate kinases
Schormann N, et al.
Protein Science, 28(10), 1771-1784 (2019)
Crystallization and preliminary X-ray analysis of pyruvate kinase from Bacillus stearothermophilus
Suzuki, K.
Acta Crystallographica Section B, Structural Crystallography and Crystal Chemistry, F61, 759-761 (2005)
Mutagenesis of the active site lysine 221 of the pyruvate kinase from Bacillus stearothermophilus
Sakai, H.
The Journal of Biological Chemistry, 137, 141-145 (2005)
E W Walters et al.
Plant physiology, 114(2), 549-555 (1997-06-01)
Adenylosuccinate synthetase (AdSS) is the site of action hydantocidin, a potent microbial phytotoxin. A kinetic analysis of the mode of inhibition of a plant adenylosuccinate synthetase by the active metabolite 5'-phosphohydantocidin (5'-PH) was the objective of the present study. AdSS

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