Leghemoglobin-derived Radicals
نویسندگان
چکیده
منابع مشابه
Leghemoglobin-derived radicals. Evidence for multiple protein-derived radicals and the initiation of peribacteroid membrane damage.
Reaction of H2O2 with ferric leghemoglobin (metLb, the monomeric, oxygen-carrying, heme protein from root nodules of nitrogen-fixing plants) has been previously shown to generate an iron(IV)-oxo (ferryl) species and at least one protein radical. The latter has been suggested to be a tyrosine-derived phenoxyl radical present at Tyr-133 in the soybean protein and Tyr-138 in the lupin protein. To ...
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Carbohydrate free radicals are generated in non-aqueous solution by abstraction of bromine, iodine or selenophenyl with photolytically generated stannyl radicals from appropriately substituted pyranose derivatives and their e.s.r. spectra are recorded in the temperature range from 30 to 70 "C. From the hyperfine splitting parameters the preferred conformations of these sugar radicals are derive...
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In a recent issue of the JCI, Matoba et al. (1) argue that hydrogen peroxide (H2O2) derived from endothelial nitric oxide synthase (eNOS) acts as an endothelium-derived hyperpolarizing factor (EDHF) in small mesenteric arteries of the mouse. Their data are convincing, and if their conclusion is correct, H2O2 now joins nitric oxide (NO) (2, 3), superoxide anions (4), and potassium ions (5) on th...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1996
ISSN: 0021-9258
DOI: 10.1074/jbc.271.51.32557