Berg D E
Basic Life Sci. 1985;30:33-44. doi: 10.1007/978-1-4613-2447-8_5.
The transposable elements of bacteria are diverse in size, functional arrangement, DNA sequence, and in their modes of transposition. We review here data suggesting that the kanamycin-resistance transposon Tn5 moves without replicating (conservative transposition), but the ampicillin-resistance transposon Tn3 is duplicated when it transposes, and that both the chloramphenicol-resistance transposon Tn9 and bacteriophage Mu are replicated in some events but not in others. A model is presented in which conservative and replicative transposition are alternative branches of a single pathway.
细菌的转座元件在大小、功能排列、DNA序列及其转座方式上各不相同。我们在此回顾一些数据，这些数据表明卡那霉素抗性转座子Tn5在转座时不进行复制（保守转座），但氨苄青霉素抗性转座子Tn3在转座时会被复制，并且氯霉素抗性转座子Tn9和噬菌体Mu在某些情况下会复制，但在其他情况下则不会。本文提出了一个模型，其中保守转座和复制性转座是单一途径的两个分支。
