Author:
Andrés I,Rodriguez J C,Barbadillo J,Ortiz J M
Abstract
A DNA fragment carrying both the IncFIII determinant and a copy number control gene of the hemolytic plasmid pSU316 has been cloned in pBR322. Deletion derivatives of the hybrid plasmid generated by Bal 31 digestion, which no longer exhibit the IncFIII phenotype, fall into two complementation groups when tested against a pSU316 miniplasmid derivative. Type 1 mutants exhibit the copy number control (Cop+) phenotype whereas type 2 mutants do not. Restriction analysis of type 1 and type 2 mutants allowed us to locate the cop gene of pSU316 in a 700-base-pair fragment adjacent to the IncFIII determinant. Plasmid expression in a minicell system suggests that the product of the cop gene of pSU316 could be a 13,000-dalton protein.
Publisher
American Society for Microbiology
Subject
Molecular Biology,Microbiology
Cited by
7 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献