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Biochemical characterization of human exonuclease1 (hExo1)

机译:人外核酸酶的生化表征1(Hexo1)

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Human exonuclease1 (hExo1) function in different processes of DNA metabolism which includes DNA replication and repair. Characterization of Exo1 has been most focused on the yeast homologue. The full-length human exonuclease1 has only been partially characterized. We report here, the biochemical studies on the full-length hExo1. We show that the stability and resection activity of hExo1 are affected by factors such as ionic strength, pH, and temperature. We determined the substrate preference of hExo1 by assaying its resection activity on different types of DNA substrates, our result show that hExo1 preferably degrades 3’ overhang dsDNA substrate, suggesting the preference of hExo1 resection activity to 3’ overhang dsDNA substrate.
机译:人的Exonuclease1(Hexo1)在DNA代谢的不同过程中的功能,包括DNA复制和修复。 EXO1的表征最专注于酵母同源物。全长人的外虫酶1仅部分是部分特征。我们在此报告,对全长Hexo1的生化研究。我们表明,六升1的稳定性和切除活性受离子强度,pH和温度等因素的影响。我们通过在不同类型的DNA底物上测定其切除活性来确定己孔1的基材偏好,我们的结果表明己酸钠优选降低3'突出的DSDNA底物,表明己酸切除活性至3'突出的DsDNA底物的偏好。

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