Tomizawa J I, Sakakibara Y, Kakefuda T
Proc Natl Acad Sci U S A. 1975 Mar;72(3):1050-4. doi: 10.1073/pnas.72.3.1050.
Closed-circular DNA of colicin E1 plasmid can undergo a round of semiconservative replication when added to an extract of Escherichia coli. Extracts of cells that do not carry the plasmid are able to perform complete replication of the plasmid. Replication requires de novo RNA synthesis but not protein synthesis.
将大肠杆菌素E1质粒的闭环DNA添加到大肠杆菌提取物中时,它能够进行一轮半保留复制。不含该质粒的细胞提取物能够使该质粒进行完全复制。复制需要从头合成RNA,但不需要蛋白质合成。