Catalase from bovine liver

powder, suitable for cell culture, 2,000-5,000 units/mg protein

H2O2:H2O2 oxidoreductase
CAS Number:
Enzyme Commission number:
EC Number:
MDL number:

Quality Level

biological source

bovine liver

product line




specific activity

2,000-5,000 units/mg protein

mol wt

tetramer ~250 kDa


cell culture | mammalian: suitable

isoelectric point


UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

cow ... CAT(280743)

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General description

CAT (catalase) is an endogenous antioxidant enzyme, thus conferring protection to cells against damage by ROS (reactive oxygen species). In humans, this gene is localized to chromosome 11p13, which is composed of 12 introns and 13 exons.


Catalase from bovine liver is used for the following applications:
  • Gel filtration
  • Analytical filtration on Ultrogel and glycerol gradient centrifugation
  • Size exclusion chromatography (HPLC)-HPLC analysis of estrogen receptor
  • Enzyme assays
  • Alcohol oxidase activity
Catalase acts as a natural antioxidant to study the roles of reactive oxygen species in gene expression and apoptosis. It has also been used to protect against oxidative damage to proteins, lipids, and nucleic acids. Industrially, catalses have been used to remove hydrogen peroxide added to milk and cheese, in textile bleaching, and to examine its positive effects on the viability of DNA-repair mutants of E. coli.


1, 10, 100 g in poly bottle

Biochem/physiol Actions

This product doesn not need any activators, but it is inhibited by 3-amino-1-H-1,2,4 triazole, cyanide, azide, hydroxylamine, cyanogens bromide, 2-mercaptoethanol, dithiothreitol, dianisidnie and nitrate.
Catalase catalyzes the degradation of hydrogen peroxide into water and oxygen. It can also react with alkylhydrogen peroxides, such as methylperoxide and ethylperoxide and the second H2O2 molecule can be replaced by methanol, ethanol, propanol, formate and nitrate as a hydrogen donor.


Catalase from bovine liver is a tetramer consisting of 4 equal subunits each with a 60 kDa molecular weight. Each of these subunits contains iron bound to a protoheme IX group. The enzyme will also strongly bind to NADP, where NADP and the heme group are within 13.7 angstroms.


Solutions of catalse should not be frozen. Frozen solution will result in a 50-70% loss of activity.

Unit Definition

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

Preparation Note

This product is a powder suitable for cell culture with activity at 2,000-5,000 units/mg. The enzyme is soluble in 50 mM potassium phosphate buffer at 1 mg/mL and pH 7.0.


Health hazard

Signal Word


Hazard Statements


Resp. Sens. 1


11 - Combustible Solids

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Theppanya Charoenrat et al.
Bioprocess and biosystems engineering, 27(6), 399-406 (2005-08-05)
An oxygen-limited fed-batch technique (OLFB) was compared to traditional methanol-limited fed-batch technique (MLFB) for the production of recombinant Thai Rosewood beta-glucosidase with Pichia pastoris. The degree of energy limitation, expressed as the relative rate of respiration (q(O)/q(O,max)), was kept similar...
Yanqiong Liu et al.
Medicine, 94(13), e702-e702 (2015-04-04)
Reactive oxygen species (ROS) play critical roles in hepatocarcinogenesis. The catalase (CAT) enzyme is involved in the repair of ROS. Therefore, we investigate the association between CAT gene polymorphisms and the risk of hepatocellular carcinoma (HCC). A total of 715...
G Redeuilh et al.
The Journal of biological chemistry, 262(15), 6969-6975 (1987-05-25)
The structure of the calf uterus nontransformed molybdate-stabilized estradiol receptor (ER) has been investigated using affinity labeling with tamoxifen aziridine and several monoclonal antibodies directed either against the steroid binding protein (Mr approximately 65,000) or against the heat shock protein...
Taku Amo et al.
Journal of bacteriology, 184(12), 3305-3312 (2002-05-25)
We had previously isolated a facultatively anaerobic hyperthermophilic archaeon, Pyrobaculum calidifontis strain VA1. Here, we found that strain VA1, when grown under aerobic conditions, harbors high catalase activity. The catalase was purified 91-fold from crude extracts and displayed a specific...
J M Renoir et al.
European journal of biochemistry, 127(1), 71-79 (1982-09-01)
A molydate-stabilized, 'non-activated' form of the progesterone receptor from the cytosol of oestrogen-stimulated chick oviduct has been purified to homogeneity by a three-step procedure. The first step, affinity chromatography using a N-(12-amino-dodecyl)-3-oxo-4-androsten-17 beta-carboxamide-substituted Sepharose gel, purified the receptor 1500-2700-fold with...
This procedure may be used for all Catalase products.
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