Comparison of Plasmids ColE2-P9 and ColE2-CA42 and Their Immunity Proteins†

AUTOR(ES)

Watson, Robert

RESUMO

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.

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