Study on Oxidation and Electron Transfer in Phosphoryldipeptide Methyl Ester

Abstract

Abstract: The Br₂^-· induced oxidation and electron transfer in N-(N-phosphorylmethionyl) tryptoyl methyl ester (NDM—TrpOMe) in aqueous solution were investigated using pulse radiolysis technique. The results indicated that the N-phosphoryl methioyl and tryptoyl group were oxidized by Br₂^-· radicals simultaneously, and intramolecular electron transfer from tryptophan to the three-electron-bonded intermediate containing sulfur occured. Some kinetic parameters were determined and the reactive mechanism was deduced.

Key words: Pulse radiolysis, N^α-Phosphoryldipeptide, Oxidation, Electron transfer

CLC Number:

O644

TrendMD:

CHU Gao-Sheng, YAO Si-De, CHEN Jia-Fu, ZHANG Zhi-Cheng, ZHANG Man-Wei. Study on Oxidation and Electron Transfer in Phosphoryldipeptide Methyl Ester[J]. Chem. J. Chinese Universities, 1998, 19(2): 305.

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Study on Oxidation and Electron Transfer in Phosphoryldipeptide Methyl Ester

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