Characterization of Bacillus subtilis clones surviving overproduction of Zeta, a pSM19035 plasmid-encoded toxin
Nowakowska, B.; Kern-Zdanowicz, I.; Zielenkiewicz, U.; Cegłowski, P.
Acta Biochimica Polonica 52(1): 99-107
2005
ISSN/ISBN: 0001-527X PMID: 15827609 Document Number: 586182
The postsegregational killing system of pSM19035 plasmid consists of the proteins Zeta and Epsilon, a toxin and an antidote, respectively. Zeta mutants were isolated with the use of Bacillus subtilis strain with the xi gene under control of an inducible promoter integrated into the chromosome. Results of mutant analysis point to the amino terminal part of the Zeta protein as being responsible for the toxicity.