Characterization of the peroxidase in human eosinophils. 1982

R Wever, and M N Hamers, and C J de Graaf, and R S Weening, and D Roos

Human eosinophil peroxidase is a cationic protein with a higher content of arginine, the enzyme being poorly soluble in water. The purified enzyme is able to carry out the peroxidative chlorination of monochlorodimedon. Like myeloperoxidase the position of the pH optimum of this reaction depends on the ration of the concentrations of chloride and H2O2. Compared to myeloperoxidase the pH optimum is shifted by 0.8 pH unit to more acid pH values. The physiological consequences of the properties of the eosinophil peroxidase are discussed.

UI MeSH Term Description Entries
D007700 Kinetics The rate dynamics in chemical or physical systems.
D010544 Peroxidases Ovoperoxidase
D004804 Eosinophils Granular leukocytes with a nucleus that usually has two lobes connected by a slender thread of chromatin, and cytoplasm containing coarse, round granules that are uniform in size and stainable by eosin. Eosinophil
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006863 Hydrogen-Ion Concentration The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH pH,Concentration, Hydrogen-Ion,Concentrations, Hydrogen-Ion,Hydrogen Ion Concentration,Hydrogen-Ion Concentrations

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