In this experiment , dna double strand breaks induced by heavy ions in the early period were investigated with atomic force microscopy ( afm ) 本實驗旨在用原子力顯微鏡( afm )研究重離子輻射后早期的dna雙鏈斷裂。
This organism can repair at least 150 double strand breaks of each chromosome induced by ionizing radiation without lethality or mutagenesis within several hours 該菌能在輻照后幾小時內(nèi)準確無誤地修復每條染色體上至少150多個dna雙鏈斷裂。
The dna double strand break ( dsb ) can be rejoined by at least two discrete pathways , i . e . , the homologous recombination and the nonhomologous end - joining . at least 10 genes were found involved in nhej Rad18是一種單鏈dna結(jié)合蛋白,具有許多泛素系統(tǒng)e3所有的典型ring結(jié)構(gòu),與rad6 ( ubc2 )形成結(jié)合緊密的異二聚體。
The damage of dna is the most basic and important sector in this process . meanwhile , the double strand breaks ( dsb ) of dna molecule is the primary damage of all biological effectiveness induced by ionizing radiation Dna的輻射損傷是其中最基本和最關(guān)鍵的一環(huán),而dna的雙鏈斷裂( dsb )又是輻射引起的各種生物學效應中最重要的原初損傷。