P1506
Pyruvate Kinase from rabbit muscle
Type II, ammonium sulfate suspension, 350-600 units/mg protein
Sinonimo/i:
ATP:pyruvate 2-O-phosphotransferase, PK
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About This Item
Numero CAS:
Numero MDL:
Codice UNSPSC:
12352204
eCl@ss:
32160410
NACRES:
NA.54
Prodotti consigliati
Origine biologica
rabbit muscle
Tipo
Type II
Forma fisica
ammonium sulfate suspension
Attività specifica
350-600 units/mg protein
PM
237 kDa
Condizioni di stoccaggio
(Tightly closed)
tecniche
ligand binding assay: suitable
Colore
white
Attività estranea
lactic dehydrogenase, creatine phosphokinase, and myokinase ≤0.01%
phosphoglucomutase ≤0.05%
Temperatura di conservazione
2-8°C
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Descrizione generale
Research Area: Cell Signaling
Pyruvate kinase from rabbit muscle catalyzes ATP-dependent phosphorylation of glycolate to yield 2-phosphoglycolate.Pyruvate kinase, an enzyme, is found in a tetrameric or a dimeric form. PKM1, PKM2, PKR, and PKL are the four mammalian pyruvate kinase isoforms.
Pyruvate kinase from rabbit muscle catalyzes ATP-dependent phosphorylation of glycolate to yield 2-phosphoglycolate.Pyruvate kinase, an enzyme, is found in a tetrameric or a dimeric form. PKM1, PKM2, PKR, and PKL are the four mammalian pyruvate kinase isoforms.
Applicazioni
Pyruvate kinase from rabbit muscle has been used in:
- a structural study to understand the reaction mechanism of the final step in glycolysis.
- a study to investigate ATP-dependent phosphorylation of α-substituted carboxylic acids.
- enzyme assays.
Azioni biochim/fisiol
Molecular Weight: 237 kDa and exists as a tetramer of four equal subunits of molecular weight 57 kDa.
Isoelectric Point: 7.6
Optimal pH: ∼7.5
Optimal Temperature: 25°C
ΕA280 = 0.54 for 1 mg(p)/ml, 1 cm path
Reported KM values are ATP (0.86 mM), pyruvate (10 mM), ADP (0.3 mM), and PEP (0.07 mM) in Tris buffer at pH 7.4 and 30 °C. Pyruvate kinase is highly specific for phosphoenolpyruvate, but can utilize other dinucleotide triphosphates as substrates in place of ATP including GTP, ITP, dATP, UTP, and CTP.
Isoelectric Point: 7.6
Optimal pH: ∼7.5
Optimal Temperature: 25°C
ΕA280 = 0.54 for 1 mg(p)/ml, 1 cm path
Reported KM values are ATP (0.86 mM), pyruvate (10 mM), ADP (0.3 mM), and PEP (0.07 mM) in Tris buffer at pH 7.4 and 30 °C. Pyruvate kinase is highly specific for phosphoenolpyruvate, but can utilize other dinucleotide triphosphates as substrates in place of ATP including GTP, ITP, dATP, UTP, and CTP.
Pyruvate kinase from rabbit muscle can be activated by histidine and inhibited by low levels of zinc (Zn2+). In the glycolytic pathway, pyruvate kinase (PK) functions as a terminal enzyme, catalyzing the conversion of phosphoenolpyruvate to pyruvate and the synthesis of ATP through substrate-level phosphorylation. Tetrameric structures of PK are more active and have a high affinity for phosphoenolpyruvate (PEP), whereas dimeric structures are less active and have a low affinity for PEP. PK from rabbit muscle possesses positive kinetic cooperativity (Hill coefficient> 1.35) of the phosphoenol pyruvate and adenosine diphosphate(ADP) binding sites.
Definizione di unità
One unit will convert 1.0 μmole of phospho(enol)pyruvate to pyruvate per min at pH 7.6 at 37 °C.
Stato fisico
Suspension in 3.2 M (NH4)2SO4 solution, pH 6
Risultati analitici
Protein determined by biuret.
Anticorpo
N° Catalogo
Descrizione
Determinazione del prezzo
Enzima
N° Catalogo
Descrizione
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Prodotti correlati
N° Catalogo
Descrizione
Determinazione del prezzo
Substrato
N° Catalogo
Descrizione
Determinazione del prezzo
Codice della classe di stoccaggio
12 - Non Combustible Liquids
Classe di pericolosità dell'acqua (WGK)
WGK 2
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
Certificati d'analisi (COA)
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I clienti hanno visto anche
Xun Chen et al.
Cancer cell international, 20(1), 523-523 (2020-12-10)
Pyruvate kinase is a terminal enzyme in the glycolytic pathway, where it catalyzes the conversion of phosphoenolpyruvate to pyruvate and production of ATP via substrate level phosphorylation. PKM2 is one of four isoforms of pyruvate kinase and is widely expressed
D E Ash et al.
Archives of biochemistry and biophysics, 228(1), 31-40 (1984-01-01)
Pyruvate kinase from rabbit muscle catalyzes an ATP-dependent phosphorylation of glycolate to yield 2-phosphoglycolate (F. J. Kayne (1974) Biochem. Biophys. Res. Commun. 59, 8-13). An investigation of anologous reactions with other alpha-substituted carboxylic acids reveals several new substrates for such
Inhibitory effect of Zn2+ on rabbit muscle pyruvate kinase and reactivation by histidine.
Tamaki N.
J. Nutr. Sci. Vitaminol., 27, 107-116 (1981)
S Strumilo et al.
Zhurnal evoliutsionnoi biokhimii i fiziologii, 51(2), 103-107 (2015-06-02)
Some catalytic and kinetic properties of pyruvate kinase (PK, EC 2.7.1.40) isolated from the heart and skeletal muscles of rabbits and hares with a 9-16-fold purification were studied. The initial specific activity of the enzyme in hare heart homogenates was
Glucokinase in Atlantic Halibut (Hippoglossus hippoglossus) Brockmann Bodies
Tranulis MA, et al.
Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology, 116, 367-370 (1997)
Articoli
Instructions for working with enzymes supplied as ammonium sulfate suspensions
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