C3515
Sigma

Catalase from Aspergillus niger

ammonium sulfate suspension, 4,000-8,000 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

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Descriptions

Analysis Note

Protein determined by biuret

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.

Physical form

Suspension in 3.2 M (NH₄)₂SO₄ solution, pH 6.0

Properties

form

ammonium sulfate suspension

mol wt

tetramer mol wt ~250 kDa

storage temp.

2-8°C