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C7886 Sigma

Creatine Phosphokinase from bovine heart

Type III, salt-free, lyophilized powder, ≥30 units/mg protein

Synonym: ATP: Creatine N-Phosphotransferase, CPK, Creatine Kinase, Phosphocreatine phosphokinase



Analysis Note

Protein determined by biuret.


The use of 0.1% albumin in the reaction buffer is recommended to avoid inactivation due to dilution.


500, 1000, 3500, 17500 units in poly bottle

Unit Definition

One unit will transfer 1.0 μmole of phosphate from phosphocreatine to ADP per min at pH 7.4 at 30 °C.


Creatine phosphokinase from bovine heart has been used to investigate whether endothelial cell growth is stimulated by ischemic hearts. Creatine phosphokinase from bovine heart has also been used to evaluate the effect of high but nontoxic dietary intake of copper and selenium on metabolism in calves.

The product has been used for tATPase assay of myofibrillar protein isolated from rabbit. This assay evaluated the kinetic influence of bound creatine kinase (CK) on Ca2+-activated myosin ATPase. The product has also been used for the enzymatic hydrolysis of protein samples during tryptophan estimation by pyrolysis gas chromatography.

Biochem/physiol Actions

Creatine kinase plays a key role in the energy metabolism of cells with intermittently high and fluctuating energy requirements. Examples of such cells include cardiac or skeletal muscle cells and neural tissues of brain and retina. The enzyme catalyzes the reversible transfer of the phosphoryl group from phosphorylcreatine to ADP, in order to generate ATP. The molecular mass of the protein is found to be approximately 80,000 Da. It is made up of 2 subunits, each having a molecular weight of 40,000 ± 2000. The lighter subunit is present in larger amounts.

Price and Availability

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Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Protocols & Articles


HPLC Analysis of Creatine Kinase on Discovery® BIO PolyMA-WAX

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Creatine Kinase on Discovery® BIO PolyMA-WAX
Keywords: Chromatography, High performance liquid chromatography

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Application Index | Enzyme Index | Substrate Index | Inhibitor Index | Cofactor Index | Lectin Index
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