Peroxidase and peroxidase-oxidase activities of isolated human myeloperoxidases
نویسندگان
چکیده
منابع مشابه
Modeling Peroxidase-oxidase Interactions
Reactive oxygen species (ROS) and peroxidase-oxidase (PO) reactions are Janus-faced contributors to cellular metabolism. At low concentrations, reactive oxygen species serve as signaling molecules; at high concentrations, as destroyers of proteins, lipids and DNA. Correspondingly, PO reactions are both sources and consumers of ROS. In the present paper, we study a well-tested model of the PO re...
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The presence of peroxidase in the uterus of the estrogeninjected ovariectomized rat and in the Walker carcinosarcoma No. 256 of rats has been reported previously (1, 2). In view of the fact that both these tissues undergo rapid proliferation, it was thought of interest to survey several other rat tissues to determine whether peroxidase might be generally associated with proliferation. Bancroft ...
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Secondary quasiperiodicity (period-doubled oscillations modulated by an incommensurate frequency), or ”Q2,” is the temporal manifestation of quasiperiodic motion on period-doubled tori. The existence of this regime in a chemical reaction was first predicted (T.V. Bronnikova, W.M. Schaffer and L.F. Olsen, J. Chem. Phys., 1996, 105, 10849) in the course of numerical explorations of a detailed mod...
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A crude enzyme extract from Dioscorea esculenta var. fasiculata tissue subjected to ion exchange chromatography on DEAE-Sephadex A-50 column. This procedure resolved the extract into two main protein peaks one of which eluted through the column relatively unbound while the other protein peak which remained bound to the column was eluted with 1.0 M NaCl. Both protein peaks contained polyphenol o...
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The activities of polyphenol oxidase (PPO) and peroxidase (POD) in hot pepper (Capsicum annuum L.) pericarp were evaluated using spectrophotometric method. The enzymes were extracted from the pepper pericarp 5 g with 20 mL of 0.1 M phosphate buffer solution pH 7. PPO and POD activities were determined using catechol and guaiacol as a substrate, respectively. The effects of the amounts of enzyme...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1987
ISSN: 0264-6021,1470-8728
DOI: 10.1042/bj2420673