E.S.R. studies of mechanisms of radiation protection effect by cysteine and cystine

Autor:	Li Xue-Peng, Tu Tie-Cheng, Lin Nian-Yun
Rok vydání:	1981
Předmět:	Radiation Pyrimidine business.industry Cystine Photochemistry Thymine chemistry.chemical_compound Electron transfer chemistry Electrophile Irradiation Radiation protection business Cysteine
Zdroj:	Radiation Physics and Chemistry (1977). 17:273-277
ISSN:	0146-5724
DOI:	10.1016/0146-5724(81)90094-7
Popis:	By means of E.S.R. we have first confirmed the repair mechanism of radiation induced spin transfer from dTMP to cycteine in binary system dTMP-cysteine. Furthermore, we have detected a new marked radiation protection effect exerted by cysteine or cystine on thymine irradiated and observed at low temperature and another sort of fast protection mechanism, including electron transfer and excitation transfer, has been proposed based on recent advances of primary radiation process of pyrimidine bases and analysed by molecular orbital theory. This fast radiation protection mechanism provides the possibility to utilize electrophilic sulfhydryl protectors for realizing excellent protection effect.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4b5d49c4defc0d359f6e9a4368e833fb https://doi.org/10.1016/0146-5724(81)90094-7 Zobrazit plný text záznamu