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 (kŏl′ĭ-sĭn, kō′lĭ-)
Any of various antibacterial proteins produced by certain strains of E. coli that inhibit or kill closely related species or strains of bacteria.

[New Latin colī, specific epithet of Escherichia colī; see E. coli + -(i)c + -in.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈkɒlɪsɪn) or


a bacteriocidal protein
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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References in periodicals archive ?
Association of K-1 Capsule, Smooth Lipopolysaccharides, traT Gene, and Colicin V Production with Complement Resistance and Virulence of Avian Escherichia coli.
Gur-Bertok, "Global transcriptional responses to the bacteriocin colicin M in Escherichia coli," BMC Microbiology, p.
The products secreted by T1SS are diverse in size and function and frequently associated with nutrient acquisition (lipases and proteases) and virulence, for example, colicin V, which was found in the C.
Wooley, John Brown, Penelope S et all; Effect of Normal Intestinal Flora of Chickens on Colonization by Virulent Colicin V-Producing, Avirulent, and Mutant Colicin V-Producing Avian Escherichia coli.
Klebsiella 370 Sulfonamide, Trimethoprim, Quinolone, Acriflavin, Glyoxalase, Bleomycin Tetracycline, Gentamicin, Tobramycin, Amikacin, Streptomycin, Colicin, Tunicamycin, Chloramphenicol,Fosfomycin, Florfenicol, Erythromycin, kanamycin, Neomycin, Apramycin, Trimethoprim, Rifampin and Spectinomycin Acinetobacter 212 Sulfonamide, Trimethoprim, Aminoglycoside,Gentamicin, Bleomycin, Carbapenem, Amikacin, Kanamycin and Neomycin.
Within the upregulated genes, the most highly expressed gene cluster was FepA-hmuY (B739_1416, B739_1417), which encodes a putative outer membrane ferrienterochelin, a colicin receptor and an HmuY-like hemophore protein.
These include K antigen, Somatic O antigen, Pili/Fimbriae (Type-1 fimbriae, P fimbriae, S fimbriae, PAP), Afimbrial adhesins, Haemagglutination of erythrocytes, Haemolysin, Resistance to the bactericidal activity of Serum, Cell Surface Hydrophobicity, expression of Siderophore Aerobactin, production of Colicin V and Cytotoxic Necrotizing Factor.
The cba gene (encoding for a bacteriocin, 2 isolates), the cma gene (also encoding for a colicin, 2 isolates), the cdtB gene (encoding for a cytolethal distending toxin, 3 isolates), and the cnf1 gene (encoding for a cytotoxic necrotizing factor type 1, 3 isolates) were amplified in some isolates.