Miller S S, Eisenstadt E
J Bacteriol. 1985 Jun;162(3):1307-10. doi: 10.1128/jb.162.3.1307-1310.1985.
Escherichia coli umuC cells were inactivated four times more rapidly than umuC+ cells by angelicin (a monofunctional psoralen) plus near-UV irradiation. With other DNA-damaging treatments, either no or much smaller differences in sensitivity were observed. These results show that functions associated with the UmuC+ phenotype contribute to the repair (or tolerance) of some categories of DNA damage more efficiently than others.
与umuC+细胞相比,大肠杆菌umuC细胞被当归素(一种单功能补骨脂素)加近紫外辐射灭活的速度快四倍。对于其他DNA损伤处理,未观察到敏感性差异或差异小得多。这些结果表明,与UmuC+表型相关的功能比其他功能更有效地促进某些类型DNA损伤的修复(或耐受)。