Zobrazeno 1 - 10 of 45 pro vyhledávání: '"D B Clewell"'
1
Genetic structure of the Enterococcus faecalis plasmid pAD1-encoded cytolytic toxin system and its relationship to lantibiotic determinants
Autor: Robert A. Segarra, Michael S. Gilmore, Mary C. Booth, L R Hall, D B Clewell, C. P. Bogie
Publikováno v: Journal of Bacteriology. 176:7335-7344
Pheromone-responsive conjugative plasmids are unique to the species Enterococcus faecalis. Many pheromone-responsive plasmids, including those frequently isolated from sites of infection, express a novel cytolysin that possesses both hemolytic and ba
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ab798224cb8373654fdc80fc70c61d8
https://doi.org/10.1128/jb.176.23.7335-7344.1994
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2
Tn924, a chromosome-borne transposon encoding high-level gentamicin resistance in Enterococcus faecalis
Autor: J W Chow, L. A. Thal, D B Clewell, Marcus J. Zervos
Publikováno v: Antimicrobial Agents and Chemotherapy. 38:1152-1156
Enterococcus faecalis SF350 is a clinical isolate from Winnipeg, Canada, with high-level (MIC > 2,000 micrograms/ml) gentamicin resistance. The genetic determinant for gentamicin resistance was located on the chromosome of SF350 and could be mobilize
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ec43d5cb5f58ce192f7ef97faa1308f
https://doi.org/10.1128/aac.38.5.1152
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3
Plasmid-associated hemolysin and aggregation substance production contribute to virulence in experimental enterococcal endocarditis
Autor: Marcus J. Zervos, Susan M. Donabedian, Lee Ann Thal, Mary Beth Perri, J W Chow, D B Clewell, Jose A. Vazquez
Publikováno v: Antimicrobial Agents and Chemotherapy. 37:2474-2477
A rabbit endocarditis model was utilized to evaluate the virulence conferred by the conjugative plasmid pAD1 with the following strains: Enterococcus faecalis plasmid-free FA2-2 and FA2-2 containing plasmids pAD1 (hemolysin and aggregation substance
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c234ab9ce97f1f2d62cac385e7e06390
https://doi.org/10.1128/aac.37.11.2474
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4
Hyperhemolytic phenomena associated with insertions of Tn916 into the hemolysin determinant of Enterococcus faecalis plasmid pAD1
Autor: D. B. Clewell, Yasuyoshi Ike, S E Flannagan
Publikováno v: Journal of Bacteriology. 174:1801-1809
Members of the Tn916 family of conjugative transposons are able to insert themselves into Enterococcus faecalis hemolysin/bacteriocin plasmid pAD1 (and related elements) in such a way as to generate hyperexpression of the hemolysin/bacteriocin. To ex
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55786dcf504611309ecdcf0c9a48d7d9
https://doi.org/10.1128/jb.174.6.1801-1809.1992
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5
Sucrose-promoted accumulation of growing glucosyltransferase variants of Streptococcus gordonii on hydroxyapatite surfaces
Autor: M. Margaret Vickerman, G W Jones, D. B. Clewell
Publikováno v: Infection and Immunity. 59:3523-3530
Streptococcus gordonii exhibits a phase variation involving expression of high (Spp+) or low (Spp-) glucosyltransferase activity. The related bacterial accumulation on hydroxyapatite (HA) and saliva-coated HA surfaces was examined and found to be sig
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e419186dd3ce20a10ee2f1871907345
https://doi.org/10.1128/iai.59.10.3523-3530.1991
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9
Identification, characterization, and nucleotide sequence of a region of Enterococcus faecalis pheromone-responsive plasmid pAD1 capable of autonomous replication
Autor: Keith E. Weaver, F An, D B Clewell
Publikováno v: Journal of bacteriology. 175(7)
A 5-kbp region of pAD1, previously shown to be capable of supporting replication, copy control, and stable inheritance of the plasmid, was cloned into a replicon probe vector and subjected to transposon insertional mutagenesis. Transposon inserts ide
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68ecda4c51f1b4027b5f77fc52a77db5
https://pubmed.ncbi.nlm.nih.gov/8384618
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10
Molecular characterization of highly gentamicin-resistant Enterococcus faecalis isolates lacking high-level streptomycin resistance
Autor: D B Clewell, Marcus J. Zervos, J W Chow, S Donabedian, M B Perri, Jan E. Patterson, L A Thal
Publikováno v: Antimicrobial agents and chemotherapy. 37(1)
Antimicrobial susceptibilities and DNA contents were analyzed for six clinical isolates of Enterococcus faecalis that had high-level resistance to gentamicin (MIC > 2,000 micrograms/ml) but not streptomycin and were obtained from patients in diverse
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ffa7de93aa40398d90a2ca89a275438
https://pubmed.ncbi.nlm.nih.gov/8381635
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