Watson R, Konarska-Kozlowska M, Iyer V N, Yaguchi M, Visentin L P
J Bacteriol. 1983 Mar;153(3):1552-7. doi: 10.1128/jb.153.3.1552-1557.1983.
Plasmids ColE2-CA42 (6.1 kilobases) and ColE2-P9 (6.8 kilobases) were found to have homologous (4.3-kilobase) DNA segments which contain their colicin and immunity genes. The relatedness of their immunity proteins was verified by determining their amino acid compositions and N-terminal sequences. These characteristics were compared with those of ColE3-CA38.