Formation of ethylene from methionine. Reactivity of radiolytically produced oxygen radicals and effect of substrate activation.
Ethylene was determined by gas chromatography after reaction of radiolytically produced OH and O2- radicals with methionine, methionine + pyridoxal phosphate and S-adenosyl-methionine (SAM). Both oxygen radicals, alone or in combination, liberate ethylene from methionine and methionine/pyridoxal phosphate. From SAM ethylene was primarily produced by the combined attack of OH nad H2O2 or O2-.
D002849:Chromatography, Gas; D004307:Dose-Response Relationship, Radiation; D005030:Ethylenes / Q000378:metabolism*; D005609:Free Radicals; D008715:Methionine / Q000378:metabolism*; D010100:Oxygen; D011675:Pulse Radiolysis; D011732:Pyridoxal Phosphate / Q000494:pharmacology; D012436:S-Adenosylmethionine / Q000378:metabolism; D013482:Superoxide Dismutase / Q000494:pharmacology; D014965:X-Rays
D005030:Ethylenes; D005609:Free Radicals; D011732:Pyridoxal Phosphate; D012436:S-Adenosylmethionine; D008715:Methionine; D013482:Superoxide Dismutase; D010100:Oxygen