由甲硫氨酸形成乙烯。辐射产生的氧自由基的反应性及底物活化的影响。

Formation of ethylene from methionine. Reactivity of radiolytically produced oxygen radicals and effect of substrate activation.

作者信息

Saran M, Bors W, Michel C, Elstner E F

出版信息

Int J Radiat Biol Relat Stud Phys Chem Med. 1980 May;37(5):521-7. doi: 10.1080/09553008014550651.

Abstract

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-.

摘要

在辐射产生的羟基自由基（OH）和超氧阴离子自由基（O₂⁻）与蛋氨酸、蛋氨酸 + 磷酸吡哆醛以及S - 腺苷甲硫氨酸（SAM）反应后，通过气相色谱法测定乙烯。单独或组合的这两种氧自由基都能从蛋氨酸和蛋氨酸/磷酸吡哆醛中释放出乙烯。从SAM中，乙烯主要是由OH与过氧化氢（H₂O₂）或O₂⁻的联合攻击产生的。