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  • Title: [Genetic characteristics of plasmid pAP53 derepressed in transfer functions detected in the cells of an opportunistic E. coli strain].
    Author: Buianova NI, Shchipkov VP, Pekhov AP.
    Journal: Biull Eksp Biol Med; 1982 Aug; 94(8):92-5. PubMed ID: 6289939.
    Abstract:
    A study was made of plasmid pAP53 derepressed as regards transfer functions (Tra-functions) detected in E. coli strain cells, serogroup 0128, after its labeling with transpozones Tn1 and Tn9. The compatibility tests demonstrated that the plasmid belongs to the incompatibility group FIII and is partially incompatible with the group FII reference-plasmid. Plasmid pAP53 is unable to inhibit Tra-functions of plasmid F'lac and is not inhibited by the fin type genetic regulation on the OP group plasmids under study. At the same time Tra-functions of plasmid pAP53 are inhibited in the presence of pAP41 plasmid, which indicates that this plasmid has a special type of genetic regulation.
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