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Merck

83330

Sigma-Aldrich

Pyruvate Kinase from rabbit muscle

crystalline suspension in 3.8 M ammonium sulfate solution, ~350 U/mg protein (10-40 mg/ml)

Sinónimos:

ATP:pyruvate 2-O-phosphotransferase, PK

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About This Item

Número de CAS:
Comisión internacional de enzimas:
Número CE:
Número MDL:
Código UNSPSC:
12352204
eCl@ss:
32160410
NACRES:
NA.54

Formulario

suspension

calidad

crystalline suspension in 3.8 M ammonium sulfate solution

actividad específica

~350 U/mg protein (10-40 mg/ml)

mol peso

Mr ~230000

pH

~6

actividad extraña

lactate dehydrogenase ≤0.01%

temp. de almacenamiento

2-8°C

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Acciones bioquímicas o fisiológicas

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.
Pyruvate kinase catalyzes the conversion of phosphoenolpyruvate to pyruvate, whitch is the rate-limiting final step in glycolysis.

Definición de unidad

1 U corresponds to the amount of enzyme which catalyzes the transphosphorylation of 1 μmol PEP per min at pH 7.4 and 25 °C

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)


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