Inhibition of the neutrophil NADPH oxidase and associated H+ channel by diethyl pyrocarbonate (DEPC), a histidine-modifying agent: evidence for at least two target sites
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چکیده
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Histidine modification with diethyl pyrocarbonate shows heterogeneity of benzodiazepine receptors.
The effect of diethyl pyrocarbonate modification of histidine on the specific binding of [3H]diazepam and its enhancement with muscimol and (+/-)-pentobarbital was investigated. Diethyl pyrocarbonate treatment produced a dose-related inhibition of specific [3H]diazepam binding to rat brain membranes with a maximal inhibition of approximately 40% at 1 mM. Scatchard analysis of the binding data s...
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Neutrophil NADPH oxidase plays a key role in host defense and in inflammation by releasing large amounts of superoxide and other ROSs. Proinflammatory cytokines such as GM-CSF and TNF-alpha prime ROS production by neutrophils through unknown mechanisms. Here we used peptide sequencing by tandem mass spectrometry to show that GM-CSF and TNF-alpha induce phosphorylation of Ser345 on p47phox, a cy...
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چکیده ندارد.
15 صفحه اولNeutrophil NADPH oxidase is reduced at the Anaplasma phagocytophilum phagosome.
The intracellular organism Anaplasma phagocytophilum causes human granulocytic ehrlichiosis and specifically infects and multiplies in neutrophilic granulocytes. Previous reports have suggested that, for its survival, this bacterium suppresses the neutrophil respiratory burst. To investigate the mechanism of survival, we first assessed the kinetics of A. phagocytophilum entry into neutrophils b...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 2001
ISSN: 0264-6021
DOI: 10.1042/0264-6021:3580315