Zinder N D
Proc Natl Acad Sci U S A. 1973 Nov;70(11):3160-4. doi: 10.1073/pnas.70.11.3160.
When infected with the filamentous phage f1, Escherichia coli K-12 strains are 20- to 40-times more resistant to colicins K and E3 than are uninfected cells. The colicins are adsorbed normally and are blocked in their action at some subsequent stage of their action. Productive infection of virions is not necessary for induction of resistance. The evidence presented implicates the product of gene III of the phage, a minor protein in the virion, as being responsible for this resistance. The simplest interpretation of the results is that this gene product blocks the penetration of colicins which is necessary for their action.
当被丝状噬菌体f1感染时,大肠杆菌K-12菌株对大肠菌素K和E3的抗性比未感染细胞高20至40倍。大肠菌素能正常吸附,但在其作用的后续某个阶段其作用被阻断。病毒粒子的有效感染对于抗性诱导并非必要。所提供的证据表明,噬菌体基因III的产物(病毒粒子中的一种次要蛋白质)是造成这种抗性的原因。对结果的最简单解释是,这种基因产物阻断了大肠菌素发挥作用所必需的穿透过程。