Search results
Results From The WOW.Com Content Network
This beetle has two sets of liquids that are stored separately in two paired glands. The larger of the pair, the storage chamber or reservoir, contains hydroquinones and hydrogen peroxide, while the smaller, the reaction chamber, contains catalases and peroxidases. To activate the noxious spray, the beetle mixes the contents of the two ...
Catalase-peroxidase (EC 1.11.1.21, katG (gene)) is an enzyme with systematic name donor:hydrogen-peroxide oxidoreductase.
It is thought that catalase-peroxidase provides protection to cells under oxidative stress. [5] Class II consists of secretory fungal peroxidases: ligninases, or lignin peroxidases (LiPs), and manganese-dependent peroxidases (MnPs). These are monomeric glycoproteins involved in the degradation of lignin. In MnP, Mn 2+ serves as the reducing ...
Almost all human peroxidases are hemoproteins, except glutathione peroxidase. They use hydrogen peroxide as a substrate. Metalloenzymes catalyze reactions using peroxide as an oxidant. [13] Catalases are hemoproteins responsible for the catalysis of converting hydrogen peroxide into water and oxygen. [14]
Peroxidases or peroxide reductases (EC number 1.11.1.x) are a large group of enzymes which play a role in various biological processes. They are named after the fact that they commonly break up peroxides , and should not be confused with other enzymes that produce peroxide, which are often oxidases .
Immunoperoxidase is a type of immunostain used in molecular biology, medical research, and clinical diagnostics.In particular, immunoperoxidase reactions refer to a sub-class of immunohistochemical or immunocytochemical procedures in which the antibodies are visualized via a peroxidase-catalyzed reaction.
Peroxidases have been classified into three types (class I, class II and class III): ascorbate peroxidases is a class I peroxidase enzyme. [5] APXs catalyse the H 2 O 2-dependent oxidation of ascorbate in plants, algae and certain cyanobacteria. [6] APX has high sequence identity to cytochrome c peroxidase, which
In enzymology, a manganese peroxidase (EC 1.11.1.13) is an enzyme that catalyzes the chemical reaction 2 Mn(II) + 2 H + + H 2 O 2 ⇌ {\displaystyle \rightleftharpoons } 2 Mn(III) + 2 H 2 O The 3 substrates of this enzyme are Mn(II) , H + , and H 2 O 2 , whereas its two products are Mn(III) and H 2 O .