Purification and Characterization of Colicin E2 and Colicin E3
Abstract Colicin E2 and colicin E3 were purified from Escherichia coli W3110(ColE2) and W3110(ColE3), respectively, by salt extraction, ammonium sulfate precipitation, and ion exchange chromatography on diethylaminoethyl Sephadex and carboxymethyl Sephadex.
H R, Herschman, D R, Helinski
openaire +2 more sources
Characterization of Colicin Ia and Colicin Ib: Antigenic Homology [PDF]
Immunological techniques have been employed to determine antigenic homology between colicin Ia and colicin Ib. Results of these experiments demonstrate that the two colicins are antigenically similar.
R E, Isaacson, J, Konisky
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Colicinogeny in Salmonella serovars isolated in Brazil
A study of colicinogeny was made in 748 strains of Salmonella (97 serovars) isolated from different sources; human (291), animal (119), environmental (141), food (102) and animal feed (95).
Leila Carvalho Campos, Ernesto Hofer
doaj +1 more source
Bacteriocin Production by Escherichia coli during Biofilm Development
Escherichia coli is a highly versatile bacterium ranging from commensal to intestinal pathogen, and is an important foodborne pathogen. E. coli species are able to prosper in multispecies biofilms and secrete bacteriocins that are only toxic to species ...
Hanna Fokt +7 more
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Green fluorescent protein-based biosensor to detect and quantify stress responses induced by DNA-degrading colicins [PDF]
Here we report the development of a whole-cell biosensor to detect and quantify the induction of the SOS response activated by DNA-degrading colicins. This biosensor utilizes the SOS-responsive cda promoter to regulate the expression of green fluorescent
Chapman, T.A. +11 more
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The biology of colicin M [PDF]
This communication summarizes our present knowledge of colicin M, an unusual member of the colicin group. The gene encoding colicin M, cma, has been sequenced and the protein isolated and purified. With a deduced molecular size of 29,453 Da, colicin M is the smallest of the known colicins. The polypeptide can be divided into functional domains for cell
R E, Harkness, T, Olschläger
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Determining the Frequency of Genes Producing Colicins Ia and V in Escherichia coli Strains Isolated from Clinical Samples of Medical Centers in Yazd City [PDF]
Introduction: Bacteriocins are peptides with antimicrobial properties. They are ribosomally synthesized and produced by both gram-positive and gram-negative bacteria. The bacteriocins produced by Escherichia coli are called colicins.
Habibollah Zare +4 more
doaj
Effect of colicins on uroseptic strains.
Effect of colicins E1, E6, E7, K and M on uroseptic strains UL209 (a) and UL141 (b). All colicins were added to the final concentration 1 µg/ml. Control represents the bacterial culture without colicin.
Živa Petkovšek (337006) +3 more
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Non-antibiotic proteins Colicins and Salmocins as novel antibacterial agents for control of foodborne pathogens Escherichia coli and Salmonella enterica [PDF]
This research comprehensively analyzes plant-produced recombinant bacteriocins, colicins and salmocins (colicin-like bacteriocins from Salmonella), addressing the escalating demand for innovative antimicrobials.
Schneider, Tobias
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Microcins in Enterobacteriaceae: Peptide Antimicrobials in the Eco-Active Intestinal Chemosphere
Microcins are low-molecular-weight, ribosomally produced, highly stable, bacterial-inhibitory molecules involved in competitive, and amensalistic interactions between Enterobacteriaceae in the intestine.
Fernando Baquero +4 more
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