Catalase CAS NO.9001-05-2

Catalase is an enzyme that catalyzes the breakdown of hydrogen peroxide molecules. 2H2O2 - →2H2O+O2 system is named H2O2; H2O2 oxidoreductase (E, C, 1, 11, 1, 6), its cogroup is heme, molecular weight is 250,000, exists in tetramer. Catalase is present in almost all animal cells, except for true anaerobic bacteria, it is widely present in plants and all microorganisms. Animal liver, red blood cells, kidneys contain particularly rich catalase, mainly in the cell of the microbody (also called peroxidase body). In the respiratory chain of mitochondria, electron transfer in the flavase reaction and other oxidation reactions, some toxic REDOX reaction products are or may be generated, the main ones are the superoxide ions O2- and H2O2, which are chemically very reactive and may irreversibly damage some biological molecules. Superoxidized ions change into hydrogen peroxide and oxygen under the action of superoxide dismutase in the cell. The most important function of peroxyperhydrogenase is to decompose hydrogen peroxide, prevent the accumulation of hydrogen peroxide, and protect cells from the harm of hydrogen peroxide. The decomposition rate of hydrogen peroxide catalyzed by catalase is very rapid, 104 times faster than that of peroxidase, and each molecule of enzyme can catalyze the decomposition of 44,000 molecules of hydrogen peroxide per second. Due to the distribution of various types of natural extreme environment in China, with rich extremophile resources, increasing efforts to develop all kinds of extremophile catalase, and constantly improve the level of enzyme production, is expected to change China's dependence on imports of catalase. With the continuous development of modern biotechnology and bioinformatics, it will be possible to modify and transform extreme enzymes in vitro, and the development and application of CAT produced by extremophiles will surely present a more attractive prospect.

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