Peptidases in Spheroplasts of Escherichia coli K-12
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چکیده
منابع مشابه
Peptidases in Escherichia coli K-12 capable of cleaving lysine homopeptides.
The peptidases present in Escherichia coZi K-12. that can cleave lysine oligopeptides were characterized to establish a system in which one could examine questions relating to peptidase specificity, function, and regulation. As an aid to this study, a mutant with diminished peptidase activity was isolated with the use of the reduced ability to cleave trilysine as a screening procedure. In this ...
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Recently, Z. Vaituzis and R. N. Doetsch (J. Bacteriol. 89:1586, 1965) described the relationship between flagellation and motility in penicillin-induced spheroplasts of Salmonella typhimurium, and they concluded that the formation of flagella was dependent upon prior cell wall synthesis. This conclusion has now been confirmed with Escherichia coli (ATCC 13070), the results found being identical...
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Since the first reports by Cavalli-Sforza (9) and Hayes (24) of strains of Escherichia coli K-12 which are conjugational donors of chromosomal markers at high frequency (Hfr strains), many other Hfr strains have been isolated and our understanding of the mechanisms involved in Hfr formation has increased considerably. All Hfr strains arise from the integration of a conjugative plasmid into the ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1966
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)99849-2