Hinchliffe E, Vivian A
J Gen Microbiol. 1980 Dec;121(2):419-23. doi: 10.1099/00221287-121-2-419.
The naturally occurring plasmid pAV2 restricts the entry of the P class plasmid RP4 and the W class plasmids R388 and S-a into Acinetobacter calcoaceticus strain EBF65/65 from Escherichia coli. The W class plasmids only transfer from E. coli into pAV2-strains. Plasmid RP4 is modified in the presence of pAV2 such that it is no longer restricted on entry into pAV2 recipients of strain EBF65/65.
天然存在的质粒pAV2限制P类质粒RP4以及W类质粒R388和S-a从大肠杆菌进入醋酸钙不动杆菌菌株EBF65/65。W类质粒仅从大肠杆菌转移到不含pAV2的菌株中。质粒RP4在pAV2存在的情况下发生修饰，使得它进入菌株EBF65/65的pAV2受体时不再受到限制。
