C9322
Sigma

Catalase from bovine liver

lyophilized powder, 2,000-5,000 units/mg protein

Synonym

H₂O₂:H₂O₂ oxidoreductase

CAS Number

9001-05-2

Enzyme Commission (EC) Number

1.11.1.6 ( BRENDA | IUBMB )

MDL number

MFCD00081483

EG/EC Number

232-577-1

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Descriptions

Frequently Asked Questions

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Analysis Note

Protein determined by biuret

Biochem/physiol Actions

Activates the decomposition of hydrogen peroxide, Natural antioxidant used to study roles of reactive oxygen species in gene expression and apoptosis.

Caution

Freezing of solutions is not recommended.

Unit Definition

One unit will decompose 1.0 μmole of H₂O₂ per min at pH 7.0 at 25 °C, while the H₂O₂ concentration falls from 10.3 to 9.2 mM, measured by the rate of decrease of A₂₄₀.

Enhanced Quality Profile

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Properties

form

lyophilized powder

mol wt

tetramer mol wt ~250 kDa

isoelectric point

5.4

Gene Information

cow ... CAT(280743)

storage temp.

−20°C

References

Merck

Merck 13,1910

Safety

Safety Statements

22-24/25

WGK Germany

RTECS

FI4378000