Bebenek K, Janion C
Mol Gen Genet. 1985;201(3):519-24. doi: 10.1007/BF00331349.
2-Aminopurine, 2-amino-N6-hydroxyadenine, 2-amino-N6-methoxyadenine and 2-amino-N6-methyl-N6-hydroxyadenine (but not N4-hydroxycytidine), strong mutagens of base analog type, may induce the SOS response in E. coli cells. This ability is greatly enhanced in dam3 mutants and abolished in dam3mutS, dam3mutH, and dam3mutL strains, thereby suggesting that the mismatch repair system is involved in the mechanism of induction.
2-氨基嘌呤、2-氨基-N6-羟基腺嘌呤、2-氨基-N6-甲氧基腺嘌呤和2-氨基-N6-甲基-N6-羟基腺嘌呤(但不包括N4-羟基胞苷),这些碱基类似物类型的强诱变剂,可能在大肠杆菌细胞中诱导SOS反应。在dam3突变体中,这种能力大大增强,而在dam3mutS、dam3mutH和dam3mutL菌株中则被消除,从而表明错配修复系统参与了诱导机制。