83330
Pyruvate Kinase from rabbit muscle
crystalline suspension in 3.8 M ammonium sulfate solution, ~350 U/mg protein (10-40 mg/ml)
Synonym(s):
ATP:pyruvate 2-O-phosphotransferase, PK
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About This Item
CAS Number:
UNSPSC Code:
12352204
eCl@ss:
32160410
EC Number:
232-616-2
NACRES:
NA.54
MDL number:
Specific activity:
~350 U/mg protein (10-40 mg/ml)
form
suspension
quality
crystalline suspension in 3.8 M ammonium sulfate solution
specific activity
~350 U/mg protein (10-40 mg/ml)
mol wt
Mr ~230000
pH
~6
foreign activity
lactate dehydrogenase ≤0.01%
storage temp.
2-8°C
Biochem/physiol Actions
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 catalyzes the conversion of phosphoenolpyruvate to pyruvate, whitch is the rate-limiting final step in glycolysis.
Other Notes
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
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Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
Regulatory Information
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Daniel I Benjamin et al.
Cell metabolism, 16(5), 565-577 (2012-10-16)
Cancer cells possess fundamentally altered metabolism that provides a foundation to support tumorigenicity and malignancy. Our understanding of the biochemical underpinnings of cancer has benefited from the integrated utilization of large-scale profiling platforms (e.g., genomics, proteomics, and metabolomics), which, together
Jidong Cheng et al.
Genes to cells : devoted to molecular & cellular mechanisms, 17(11), 913-922 (2012-10-20)
AMP deaminase (AMPD) catalyzes AMP to IMP and plays an important role in energy charge and nucleotide metabolism. Human AMPD3 deficiency is a type of erythrocyte-specific enzyme deficiency found in individuals without clinical symptoms, although an increased level of ATP
Patrícia Machado et al.
PloS one, 7(10), e47071-e47071 (2012-10-20)
Pyruvate kinase (PK) deficiency, causing hemolytic anemia, has been associated to malaria protection and its prevalence in sub-Saharan Africa is not known so far. This work shows the results of a study undertaken to determine PK deficiency occurrence in some
Global Trade Item Number
| SKU | GTIN |
|---|---|
| I2304-100G | 04061832490212 |
| I2304-10G | 04061832490229 |
| V900761-10G | 04061832500898 |
| V900761-50G | 04061832500904 |
| I2304-25G | 04061833848418 |
| 83330-10MG | 04061832921112 |