Published in Genet Res on February 01, 1966
Phylogenetic relationships of drug-resistance factors and other transmissible bacterial plasmids. Bacteriol Rev (1968) 9.19
Molecular specificities of R factor-determined beta-lactamases: correlation with plasmid compatibility. J Bacteriol (1974) 5.06
Nonchromosomal antibiotic resistance in bacteria. V. Isolation and characterization of R factor mutants exhibiting temperature-sensitive repression of fertility. J Bacteriol (1972) 4.85
Molecular studies of R factor compatibility groups. J Bacteriol (1973) 4.12
Transfer-defective mutants of sex factors in Escherichia coli. I. Defective mutants and complementation analysis. Genetics (1970) 3.61
Mutant of Escherichia coli with anomalous cell division and ability to decrease episomally and chromosomally mediated resistance to ampicillin and several other antibiotics. J Bacteriol (1969) 3.54
Colicinogeny and related phenomena. Bacteriol Rev (1975) 3.51
Mutations in R factors of Escherichia coli causing an increased number of R-factor copies per chromosome. J Bacteriol (1972) 3.36
The problem and implications of chloramphenicol resistance in the typhoid bacillus. J Hyg (Lond) (1975) 3.30
Molecular cloning of DNA from F sex factor of Escherichia coli K-12. Proc Natl Acad Sci U S A (1976) 2.81
Non-chromosomal antibiotic resistance in bacteria. 3. Isolation of the discrete transfer unit of the R-factor R1. Proc Natl Acad Sci U S A (1970) 2.76
Plasmid incompatibility and control of replication: copy mutants of the R-factor R1 in Escherichia coli K-12. J Bacteriol (1975) 2.75
Transduction of various R factors by phage P1 in Escherichia coli and by phage P22 in Salmonella typhimurium. J Bacteriol (1968) 2.52
Resistance of Escherichia coli to penicillins. VII. Purification and characterization of a penicillinase mediated by the R factor R1. J Bacteriol (1970) 2.49
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Family of class 1 integrons related to In4 from Tn1696. Antimicrob Agents Chemother (2001) 2.41
Naturally occurring R factor, derepressed for pilus synthesis, belonging to the same compatibility group as the sex factor F of Escherichia coli K-12. J Bacteriol (1972) 2.40
Transposon A-generated mutations in the mercuric resistance genes of plasmid R100-1. J Bacteriol (1979) 2.33
Resistance of Escherichia coli to penicillins. V. Physiological comparison of two isogenic strains, one with chromosomally and one with episomally mediated ampicillin resistance. J Bacteriol (1968) 2.27
R factors in strains of Salmonella typhi and Shigella dysenteriae 1 isolated during epidemics in Mexico: classification by compatibility. Antimicrob Agents Chemother (1974) 2.27
Distribution of coliphages in Hong Kong sewage. Appl Microbiol (1970) 2.20
Inhibition of bacterial conjugation by ribonucleic acid and deoxyribonucleic acid male-specific bacteriophages. J Bacteriol (1968) 2.10
Genetic transfer and bacterial taxonomy. Bacteriol Rev (1970) 2.10
Physical properties and mechanism of transfer of R factors in Escherichia coli. J Bacteriol (1971) 2.06
Some relationships between R-factor and chromosomal -lactamase in Gram-negative bacteria. Biochem J (1971) 2.03
Colicin tolerance induced by ampicillin or mutation to ampicillin resistance in a strain of Escherichia coli K-12. J Bacteriol (1971) 1.96
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Studies on bacteriophage distribution: virulent and temperate bacteriophage content of mammalian feces. Appl Environ Microbiol (1976) 1.86
Resistance of Escherichia coli to penicillins. IX. Genetics and physiology of class II ampicillin-resistant mutants that are galactose negative or sensitive to bacteriophage C21, or both. J Bacteriol (1971) 1.84
Chloramphenicol acetyltransferases specified by fi minus R factors. Antimicrob Agents Chemother (1973) 1.71
Synthesis of indicator strains and density of ribonucleic acid-containing coliphages in sewage. Appl Microbiol (1974) 1.66
Resistance of Escherichia coli to penicillins. 8. Physiology of a class II ampicillin-resistant mutant. J Bacteriol (1970) 1.52
Properties of the relaxation complexes of supercoiled deoxyribonucleic acid and protein of the R plasmids R64, R28K, and R6K. J Bacteriol (1974) 1.50
Replication of R-factor R1 in Scherichia coli K-12 at different growth rates. J Bacteriol (1975) 1.48
Isolation of a mutant TOL plasmid with increased activity and transmissibility from Pseudomonas putida (arvilla) mt-2. J Bacteriol (1977) 1.38
Superinfection with R factors by transduction in Escherichia coli and Salmonella typhimurium. J Bacteriol (1968) 1.38
A gene probe for TEM type beta-lactamases. Antimicrob Agents Chemother (1985) 1.32
Functions of F pili in mating-pair formation and male bacteriophage infection studies by blending spectra and reappearance kinetics. J Bacteriol (1969) 1.24
Trimethoprim action and its analogy with thymine starvation. Antimicrob Agents Chemother (1974) 1.23
Five control systems preventing transfer of Escherichia coli K-12 sex factor F. J Bacteriol (1975) 1.21
Evidence of microevolution of Salmonella Typhimurium during a series of egg-associated outbreaks linked to a single chicken farm. BMC Genomics (2013) 1.21
Propagation of TEM- and PSE-type beta-lactamases among amoxicillin-resistant Salmonella spp. isolated in France. Antimicrob Agents Chemother (1999) 1.18
New hemolysin (gamma) produced by Escherichia coli. J Bacteriol (1969) 1.16
Mutations in Escherichia coli K-12 decreasing the rate of streptomycin uptake: synergism with R-factor-mediated capacity to inactivate streptomycin. Antimicrob Agents Chemother (1974) 1.12
Plasmid replication functions: two distinct segments of plasmid R1, RepA and RepD, express incompatibility and are capable of autonomous replication. J Bacteriol (1980) 1.11
Radioactive labelling of multiple-drug resistance factor in Escherichia coli. Biochem J (1971) 1.08
Comparison of transcription of beta-lactamase genes specified by various ampicillin transposons. J Bacteriol (1982) 1.08
Improved purification and characterization of the OXA-2 beta-lactamase. Biochem J (1984) 1.06
Genetic and molecular properties of an infectious antibiotic resistance (R) factor isolated from Klebsiella. J Bacteriol (1969) 1.06
Inhibition of gene transfer by antiserum and identification of serotypes of sex pili. J Bacteriol (1972) 1.05
Relation of R factor and chromosomal beta-lactamase with the periplasmic space. J Bacteriol (1974) 1.03
R-mediated beta-lactamases and episomal resistance to the beta-lactam drugs in different bacterial hosts. Antimicrob Agents Chemother (1974) 1.02
R factor elimination during thymine starvation: effects of inhibition of protein synthesis and readdition of thymine. J Bacteriol (1972) 1.00
Effect of R factors and other plasmids on ultraviolet susceptibility and host cell reactivation property of Escherichia coli. J Bacteriol (1969) 0.97
R-factor-mediated nuclease activity involved in thymineless elimination. J Bacteriol (1974) 0.96
Characterization of beta-lactamase-deficient (bla) mutants of the R plasmid R1 in Escherichia coli K-12 and comparison with similar mutants of RP1. Antimicrob Agents Chemother (1980) 0.95
Effect of R-factor-mediated drug-metabolizing enzymes on survival of Escherichia coli K-12 in presence of ampicillin, chloramphenicol, or streptomycin. Antimicrob Agents Chemother (1974) 0.93
Incidence of lysogeny, colicinogeny, and drug resistance in enterobacteria isolated from sewage and from rectum of humans and some domesticated species. Appl Environ Microbiol (1981) 0.91
Curing of an R factor Escherichia coli by trimethoprim. Antimicrob Agents Chemother (1973) 0.87
Variation in expression of sex factor genes in the Proteus-Providencia group relative to Escherichia coli. J Bacteriol (1975) 0.85
Inhibition of cell division in Escherichia coli K-12 by the R-factor R1 and copy mutants of R1. J Bacteriol (1975) 0.83
Quantitative correlation between penicillin resistance and beta-lactamase activity specified by the R plasmids R1, R1 bla-45, and RP1 in Escherichia coli K-12. Antimicrob Agents Chemother (1980) 0.83
Loss of R factors promoted by bacteriophage M13 and the M13 carrier state. J Bacteriol (1972) 0.83
R factor-mediated polarized chromosomal transfer in Escherichia coli C. J Bacteriol (1976) 0.82
The characterization of plasmids in the enterobacteria. J Hyg (Lond) (1974) 0.80
Bactericidal activity of trimethoprim alone and in combination with sulfamethoxazole on susceptible and resistant Escherichia coli K-12. Antimicrob Agents Chemother (1982) 0.78
Urinary isolates of apramycin-resistant Escherichia coli and Klebsiella pneumoniae from Dublin. Epidemiol Infect (1995) 0.78
Co-trimoxazole susceptibility tests improved with separate trimethoprim and sulfamethoxazole disks. J Clin Microbiol (1981) 0.78
EcoR124I: from plasmid-encoded restriction-modification system to nanodevice. Microbiol Mol Biol Rev (2008) 0.77
Comparative Genomics of the Conjugation Region of F-like Plasmids: Five Shades of F. Front Mol Biosci (2016) 0.75
Influence on motility of Escherichia coli and Salmonella typhimurium by a naturally occurring conjugative plasmid. J Bacteriol (1977) 0.75
Alternate forms of the resistance factor R1 in Proteus mirabilis. J Bacteriol (1974) 0.75
Properties of an R factor from Pseudomonas aeruginosa. J Bacteriol (1971) 13.06
Uniform nomenclature for bacterial plasmids: a proposal. Bacteriol Rev (1976) 12.28
Mutant drug resistant factors of high transmissibility. Nature (1967) 9.87
Phylogenetic relationships of drug-resistance factors and other transmissible bacterial plasmids. Bacteriol Rev (1968) 9.19
Penicillinase synthesis controlled by infectious R factors in Enterobacteriaceae. Nature (1965) 8.77
Host ranges of R factors. J Gen Microbiol (1972) 8.38
R factors from Proteus rettgeri. J Gen Microbiol (1972) 7.83
Polynucleotide sequence relationships among plasmids of the I compatibility complex. J Gen Microbiol (1974) 5.91
Molecular specificities of R factor-determined beta-lactamases: correlation with plasmid compatibility. J Bacteriol (1974) 5.06
Transposition of a deoxyribonucleic acid sequence encoding trimethoprim and streptomycin resistances from R483 to other replicons. J Bacteriol (1976) 4.88
Trimethoprim resistance conferred by W plasmids in Enterobacteriaceae. J Gen Microbiol (1972) 4.87
The purification and properties of a penicillinase whose synthesis is mediated by an R-factor in Escherichia coli. Biochem J (1966) 4.87
Trimethoprim R factors in enterobacteria from clinical specimens. J Med Microbiol (1974) 4.75
Compatibility groups among fi - R factors. Nature (1971) 4.43
Drug resistance and R factors in the bowel bacteria of London patients before and after admission to hospital. Br Med J (1969) 3.92
Sex pili and the classification of sex factors in the enterobacteriaceae. Nature (1967) 3.56
Plasmids determining I pili constitute a compatibility complex. J Gen Microbiol (1973) 3.36
R Factors in Escherichia coli in faeces after oral chemotherapy in general practice. Lancet (1971) 3.01
Trimethoprim resistance determined by R factors. Br Med J (1972) 2.96
Conjugative plasmids in bacteria of the 'pre-antibiotic' era. Nature (1983) 2.75
Flavonoids in food and their health benefits. Plant Foods Hum Nutr (2004) 2.75
R124, an fi R factor of a new compatibility class. J Gen Microbiol (1972) 2.62
An epidemiological study of strains of Shigella sonnei from two related outbreaks. J Hyg (Lond) (1972) 2.54
The relationship of F type piliation and F phage sensitivity to drug resistance transfer in R+F- Escherichia coli K 12. J Gen Microbiol (1966) 2.52
R factors from Proteus morganii. J Gen Microbiol (1973) 2.49
Infectious drug resistance. Br Med Bull (1965) 2.39
Functional homology of the sex-factor and resistance transfer factors. Nature (1965) 2.37
R factors in strains of Salmonella typhi and Shigella dysenteriae 1 isolated during epidemics in Mexico: classification by compatibility. Antimicrob Agents Chemother (1974) 2.27
Covert fi- R factors in fi+ R+ strains of bacteria. J Bacteriol (1969) 2.11
R factors from Serratia marcescens. J Gen Microbiol (1975) 2.00
Repressor-minus and operator-constitutive de-repressed mutants of F-like R factors: their effect on chromosomal transfer by HfrC. Genet Res (1969) 1.98
Plasmids and transposons and their stability and mutability in bacteria isolated during an outbreak of hospital infection. Plasmid (1979) 1.94
Interactions between de-repressed F-like R factors and wild type colicin B factors: superinfection immunity and repressor susceptibility. Genet Res (1969) 1.91
Distribution of genes for trimethoprim and gentamicin resistance in bacteria and their plasmids in a general hospital. J Gen Microbiol (1980) 1.84
An I pilus-determining R factor with anomalous compatibility properties, mobilizing a gentamicin-resistance plasmid. J Gen Microbiol (1973) 1.80
Serotypes of sex pili. J Hyg (Lond) (1970) 1.79
Plasmid-determined fusidic acid resistance in the Enterobacteriaceae. J Gen Microbiol (1974) 1.74
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Plasmid-determined beta-lactamase indistinguishable from the chromosomal beta-lactamase of Escherichia coli. J Bacteriol (1976) 1.69
Two modes of "curing" transmissible bacterial plasmids. J Gen Microbiol (1972) 1.69
Salmonella typhi in vivo acquires resistance to both chloramphenicol and co-trimoxazole. Lancet (1981) 1.66
Plasmids of the same Inc groups in Enterobacteria before and after the medical use of antibiotics. Nature (1984) 1.65
The nature and incidence of conjugation factors in Escherichia coli. Genet Res (1966) 1.57
Phytochrome and calcium stimulation of protein phosphorylation in isolated pea nuclei. Biochem Biophys Res Commun (1985) 1.55
Validation of causes of infant death in the community by verbal autopsy. Indian J Pediatr (1988) 1.54
A transposon, Tn732, encoding gentamicin/tobramycin resistance. Nature (1979) 1.51
R62, a naturally occurring hybrid R plasmid. J Bacteriol (1974) 1.48
R factors identified in Paris, some conferring gentamicin resistance, constitute a new compatibility group. Ann Inst Pasteur (Paris) (1972) 1.41
Emergence of Shigella sonnei resistant to kanamycin and to nalidixic acid, without exposure to these drugs. J Med Microbiol (1969) 1.41
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Curcumin, the major component of food flavour turmeric, reduces mucosal injury in trinitrobenzene sulphonic acid-induced colitis. Br J Pharmacol (2003) 1.38
R factors conferring resistance to trimethoprim but not sulphonamides. J Gen Microbiol (1972) 1.35
Compatibility properties of R483, a member of the I plasmid complex. J Bacteriol (1976) 1.34
Application of case management to the control of acute respiratory infections in low-birth-weight infants: a feasibility study. Bull World Health Organ (1987) 1.33
The biosynthesis of poly d-glutamic acid, the capsular material of Bacillus anthracis. J Gen Microbiol (1966) 1.33
Plasmids and transposons acquired by Salmonella typhi in man. Plasmid (1982) 1.29
Serological characteristics of pili determined by the plasmids R711b and F0lac. J Gen Microbiol (1978) 1.25
Effect of stay in hospital and oral chemotherapy on the antibiotic sensitivity of bowel coliforms. J Hyg (Lond) (1973) 1.24
Role of calcium ions in phytochrome responses: an update. Physiol Plant (1986) 1.23
Transduction of R factors in Proteus mirabilis and P. rettgeri. J Gen Microbiol (1973) 1.23
Cyclic AMP and the production of sex pili by E. coli K-12 carrying derepressed sex factors. Nature (1975) 1.22
Characterization of oat calmodulin and radioimmunoassay of its subcellular distribution. Plant Physiol (1984) 1.21
Two naturally occurring transposons indistinguishable from Tn7. J Gen Microbiol (1977) 1.20
R factors of compatibility group A. J Gen Microbiol (1973) 1.20
Properties of plasmids produced by recombination between R factors of groups J and FII. Mol Gen Genet (1975) 1.19
R plasmids of a new incompatibility group determine constitutive production of H pili. Plasmid (1982) 1.16
Mixed infections with bacterial sex factors: sex pili of pure and mixed phenotype. Ann Inst Pasteur (Paris) (1971) 1.16
Electron microscope heteroduplex studies of sequence relationships among plasmids of the W incompatibility group. Plasmid (1979) 1.15
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Birth weight as an indicator of health. Indian Pediatr (1984) 1.13
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Mutation to high-level streptomycin-resistance in R+ bacteria. J Gen Microbiol (1968) 1.11
Chromosomal transfer mediated by de-repressed R factors in F- Escherichia coli K12. Genet Res (1969) 1.11
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Hfr formation by I pilus-determining plasmids in Escherichia coli K-12. J Bacteriol (1976) 1.08
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Infection caused by Proteus mirabilis strains with transferrable gentamicin-resistance factors. Lancet (1975) 1.07
Hybridization of variants of chloramphenicol acetyltransferase specified by fi + and fi - R factors. Proc Natl Acad Sci U S A (1972) 1.06
Pseudo-fi + I-like sex factors, R62(I), selective for increased pilus synthesis. J Bacteriol (1973) 1.05
Inhibition of gene transfer by antiserum and identification of serotypes of sex pili. J Bacteriol (1972) 1.05
Transposons encoding trimethoprim or gentamicin resistance in medically important bacteria. Cold Spring Harb Symp Quant Biol (1981) 1.04
Copy numbers of coexisting plasmids in Escherichia coli K-12. J Bacteriol (1978) 1.02
Third type of plasmid conferring gentamicin resistance in Pseudomonas aeruginosa. Antimicrob Agents Chemother (1975) 1.02
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