| Application Notes | Experiment Notes: Catalase from bovine liver. Fe- containing hemoprotein. Molecular weight of enzyme 225-250 kDa. E1%405=13.5. Activity of preparation is about 50000 U/mg of protein. One unit will decompose 1 umol H202 per minute at pH 7.0 at 250 C while concentration of hydrogen peroxide falls from 10.3 to 9.2 mM. The rate of disappearance of hydrogen peroxide is followed by observing the rate of decrease in absorbance at 240 nm (Sigma assay procedure).The enzyme can be applied in systems where effective removal of hydrogen peroxide is necessary. Moreover recent data show its role in processes of apoptosis |
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