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High-salt effects on the structure and damage of chromosomal DNA in Halobacterium salinarium, an extremely halophilic
H R Shahmohammadi1, H Terato, E Asgarani
1Graduate Department of Gene Science, Faculty of Science, Hiroshima University, Higashi-Hiroshima, Japan.
Nucleic Acids Symposium Series
|January 1, 1997
Abstract:
High concentration salt effects on the structure and radiation-induced damages of DNA were studied to elucidate the biochemical mechanism of the resistance of halophilic H. salinarium against DNA damaging agents. High concentration of KCl did not induce significant conformational changes in H. salinarium chromosomal DNA, but exhibited an extensive protective effect on the radiation-induced single-strand breaks of plasmid DNA.