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| Pulse radiolysis studies of intermolecular charge transfers involving tryptophan and three-electron-bonded intermediates derived from methionine | |
| Fu, HY(付海英); Lin, MZ; Muroya, Y; Katsumura, Y | |
| 2012 | |
| Source Publication | RESEARCH ON CHEMICAL INTERMEDIATES
 |
| ISSN | 0922-6168 |
| Volume | 38Issue:1 |
| Abstract | The oxidation processes of the radiation-generated, three-electron-bonded intermediates AcMet(2) [Sa ' S](+) and AcMet [Sa ' Br] were investigated by pulse radiolysis via their reactions with tryptophan (TrpH). These intermediates were derived from N-acetyl-methionine amide (N-AcMetNH(2)) and N-acetyl-methionine methyl ester (N-AcMetOMe). The bimolecular rate constant k of the reaction between each intermediate and l-tryptophan (TrpH) was measured. For N-AcMetNH(2), k for the reaction of AcMet(2) [Sa ' S](+) with TrpH were 3.4 x 10(8) and 2.2 x 10(8) dm(3) mol(-1) s(-1) at pH = 1 and 4.5, respectively. For N-AcMetOMe, k for the reaction of AcMet(2) [Sa ' S](+) with TrpH were 4.0 x 10(8) and 2.8 x 10(8) dm(3) mol(-1) s(-1) at pH 1 and 4.5, respectively. The rate constants for the intermolecular transformation of Met [Sa ' Br] into TrpH(+) or Trp were also estimated. For N-AcMetNH(2), k for the reaction of AcMet(2) [Sa ' Br] with TrpH were 2.6 x 10(8) and 3.3 x 10(8) dm(3) mol(-1) s(-1) at pH 1 and 4.5, respectively. Related mechanisms were discussed. |
| Language | 英语 |
| Funding Project | 应物所项目组 |
| WOS ID | WOS:000297848400011 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/13265 |
| Collection | 中科院上海应用物理研究所2011-2020年 |
| Recommended Citation GB/T 7714 | Fu, HY,Lin, MZ,Muroya, Y,et al. Pulse radiolysis studies of intermolecular charge transfers involving tryptophan and three-electron-bonded intermediates derived from methionine[J]. RESEARCH ON CHEMICAL INTERMEDIATES,2012,38(1). |
| APA | Fu, HY,Lin, MZ,Muroya, Y,&Katsumura, Y.(2012).Pulse radiolysis studies of intermolecular charge transfers involving tryptophan and three-electron-bonded intermediates derived from methionine.RESEARCH ON CHEMICAL INTERMEDIATES,38(1). |
| MLA | Fu, HY,et al."Pulse radiolysis studies of intermolecular charge transfers involving tryptophan and three-electron-bonded intermediates derived from methionine".RESEARCH ON CHEMICAL INTERMEDIATES 38.1(2012). |
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