Published in J Bacteriol on August 01, 1968
Interaction of penicillin with the bacterial cell: penicillin-binding proteins and penicillin-sensitive enzymes. Bacteriol Rev (1974) 7.49
Analytical isoelectric focusing of R factor-determined beta-lactamases: correlation with plasmid compatibility. J Bacteriol (1976) 5.07
Resistance of Escherichia coli to penicillins. VI. Purification and characterization of the chromosomally mediated penicillinase present in ampA-containing strains. J Bacteriol (1970) 4.34
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
Resistance of Escherichia coli to penicillins. VII. Purification and characterization of a penicillinase mediated by the R factor R1. J Bacteriol (1970) 2.49
Some relationships between R-factor and chromosomal -lactamase in Gram-negative bacteria. Biochem J (1971) 2.03
Outer penetration barrier of Escherichia coli K-12: kinetics of the uptake of gentian violet by wild type and envelope mutants. J Bacteriol (1973) 2.02
Murein and the outer penetration barrier of Escherichia coli K-12, Proteus mirabilis, and Pseudomonas aeruginosa. J Bacteriol (1972) 1.95
Characterization of R factor beta-lactamases by the acidimetric method. Antimicrob Agents Chemother (1973) 1.76
HR 756, the syn isomer of a new methoxyimino cephalosporin with unusual antibacterial activity. Antimicrob Agents Chemother (1978) 1.59
Stepwise introduction of transformable penicillin resistance in Pneumococcus. Genetics (1970) 1.57
Characterization of the beta-lactamase promoter of pBR322. Nucleic Acids Res (1981) 1.53
Automated method for determination of penicillins, cephalosporins, and penicillinases. Antimicrob Agents Chemother (1972) 1.53
Resistance of Escherichia coli to penicillins. 8. Physiology of a class II ampicillin-resistant mutant. J Bacteriol (1970) 1.52
Resistance of Escherichia coli to penicillins: identification of the structural gene for the chromosomal penicillinase. J Bacteriol (1973) 1.49
Replication of R-factor R1 in Scherichia coli K-12 at different growth rates. J Bacteriol (1975) 1.48
Antibacterial mechanism of action of arylamide foldamers. Antimicrob Agents Chemother (2011) 0.99
Functional characterization of a melittin analog containing a non-natural tryptophan analog. Biopolymers (2015) 0.76
Acetylornithinase of Escherichia coli: partial purification and some properties. J Biol Chem (1956) 93.84
Studies on lysogenesis. I. The mode of phage liberation by lysogenic Escherichia coli. J Bacteriol (1951) 28.27
Infective heredity of multiple drug resistance in bacteria. Bacteriol Rev (1963) 19.90
Micro-iodometric assay for penicillinase. Biochem J (1962) 16.45
Penicillinase synthesis controlled by infectious R factors in Enterobacteriaceae. Nature (1965) 8.77
The relation of resistance transfer factors to the F-factor (sex-factor) of Escherichia coli K12. Genet Res (1966) 5.90
The biochemistry and function of beta-lactamase (penicillinase). Adv Enzymol Relat Areas Mol Biol (1966) 5.54
The purification and properties of a penicillinase whose synthesis is mediated by an R-factor in Escherichia coli. Biochem J (1966) 4.87
PURIFICATION AND PROPERTIES OF PENICILLINASES FROM TWO STRAINS OF BACILLUS LICHENIFORMIS: A CHEMICAL, PHYSICOCHEMICAL AND PHYSIOLOGICAL COMPARISON. Biochem J (1965) 4.57
Resistance of Escherichia coli to Penicillins I. Genetic Study of Some Ampicillin-Resistant Mutants. J Bacteriol (1965) 2.81
Infectious drug resistance. Br Med Bull (1965) 2.39
Evolutionary relationships of R factors with other episomes and plasmids. Fed Proc (1967) 1.96
Origin and function of penicillinase: a problem in biochemical evolution. Br Med J (1967) 1.72
Penicillin-induced lysis in Escherichia coli. J Gen Microbiol (1963) 1.34
Sequence and specificity of two antibacterial proteins involved in insect immunity. Nature (1981) 5.66
Insect immunity. Purification and properties of three inducible bactericidal proteins from hemolymph of immunized pupae of Hyalophora cecropia. Eur J Biochem (1980) 4.35
Resistance of Escherichia coli to penicillins. VI. Purification and characterization of the chromosomally mediated penicillinase present in ampA-containing strains. J Bacteriol (1970) 4.34
Microiodometric determination of beta-lactamase activity. Antimicrob Agents Chemother (1972) 4.28
All-D amino acid-containing channel-forming antibiotic peptides. Proc Natl Acad Sci U S A (1990) 4.00
Penicillin resistance in Escherichia coli K12: synergism between penicillinases and a barrier in the outer part of the envelope. Ann N Y Acad Sci (1974) 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
Mutations in R factors of Escherichia coli causing an increased number of R-factor copies per chromosome. J Bacteriol (1972) 3.36
Apparent absence of transferable resistance to nalidixic acid in pathogenic Gram-negative bacteria. J Antimicrob Chemother (1977) 3.32
Cell division in a chain-forming envA mutant of Escherichia coli K12. Fine structure of division sites and effects of EDTA, lysozyme and ampicillin. Acta Pathol Microbiol Scand B Microbiol Immunol (1971) 3.28
Insect immunity. Attacins, a family of antibacterial proteins from Hyalophora cecropia. EMBO J (1983) 3.27
Insect immunity: isolation and structure of cecropin D and four minor antibacterial components from Cecropia pupae. Eur J Biochem (1982) 3.17
Ampicillin-resistant mutants of Escherichia coli K-12 with lipopolysaccharide alterations affecting mating ability and susceptibility to sex-specific bacteriophages. J Bacteriol (1971) 3.11
FALL-39, a putative human peptide antibiotic, is cysteine-free and expressed in bone marrow and testis. Proc Natl Acad Sci U S A (1995) 2.89
Resistance of Escherichia coli to Penicillins I. Genetic Study of Some Ampicillin-Resistant Mutants. J Bacteriol (1965) 2.81
R plasmid gene dosage effects in Escherichia coli K-12: copy mutants of the R plasmic R1drd-19. Plasmid (1977) 2.80
Synthesis of the antibacterial peptide cecropin A (1-33). Biochemistry (1982) 2.78
Analysis of cell size and DNA content in exponentially growing and stationary-phase batch cultures of Escherichia coli. J Bacteriol (1995) 2.76
Partitioning of plasmid R1 in Escherichia coli. I. Kinetics of loss of plasmid derivatives deleted of the par region. Plasmid (1980) 2.75
Plasmid incompatibility and control of replication: copy mutants of the R-factor R1 in Escherichia coli K-12. J Bacteriol (1975) 2.75
RNAs involved in copy-number control and incompatibility of plasmid R1. Proc Natl Acad Sci U S A (1981) 2.73
Antibacterial peptides from pig intestine: isolation of a mammalian cecropin. Proc Natl Acad Sci U S A (1989) 2.59
Control of replication of bacterial plasmids: genetics, molecular biology, and physiology of the plasmid R1 system. Plasmid (1984) 2.51
Insect pathogenic properties of Serratia marcescens: phage-resistant mutants with a decreased resistance to Cecropia immunity and a decreased virulence to Drosophila. J Gen Microbiol (1980) 2.49
Resistance of Escherichia coli to penicillins. VII. Purification and characterization of a penicillinase mediated by the R factor R1. J Bacteriol (1970) 2.49
Characterization of lipopolysaccharides from Escherichia coli K-12 mutants. J Bacteriol (1975) 2.48
Protein A mutants of Staphylococcus aureus. J Bacteriol (1971) 2.32
Control of replication of plasmid R1: the duplex between the antisense RNA, CopA, and its target, CopT, is processed specifically in vivo and in vitro by RNase III. EMBO J (1990) 2.31
Cell division in Escherichia coli minB mutants. Mol Microbiol (1992) 2.23
A runaway-replication mutant of plasmid R1drd-19: temperature-dependent loss of copy number control. Mol Gen Genet (1978) 2.22
Cell-surface alterations in Escherichia coli K-12 with chromosmal mutations changing ampicillin resistance. Ann N Y Acad Sci (1971) 2.16
Resistance of Escherichia coli to penicillins. IV. Genetic study of mutants resistant to D,L-ampicillin concentrations o 100 mu-g-ml. Genet Res (1968) 2.15
Control of replication of plasmid R1: kinetics of in vitro interaction between the antisense RNA, CopA, and its target, CopT. EMBO J (1988) 2.15
Resistance of Escherichia coli to penicillins. 3. AmpB, a locus affecting episomally and chromosomally mediated resistance to ampicillin and chlorampheincol. Genet Res (1968) 2.12
Ecological impact of ampicillin and cefuroxime in neonatal units. Lancet (1989) 2.11
Inducible antibacterial defence system in Drosophila. Nature (1972) 2.08
Outer penetration barrier of Escherichia coli K-12: kinetics of the uptake of gentian violet by wild type and envelope mutants. J Bacteriol (1973) 2.02
Control of plasmid R1 replication: functions involved in replication, copy number control, incompatibility, and switch-off of replication. J Bacteriol (1980) 1.99
Plasmids with temperature-dependent copy number for amplification of cloned genes and their products. Gene (1979) 1.98
Molecular model for elongation of the murein sacculus of Escherichia coli. Proc Natl Acad Sci U S A (1984) 1.97
Resistance of Escherichia coli to penicillins: fine-structure mapping and dominance of chromosomal beta-lactamase mutations. J Bacteriol (1977) 1.96
Colicin tolerance induced by ampicillin or mutation to ampicillin resistance in a strain of Escherichia coli K-12. J Bacteriol (1971) 1.96
Amino acid sequence of PR-39. Isolation from pig intestine of a new member of the family of proline-arginine-rich antibacterial peptides. Eur J Biochem (1991) 1.95
Murein and the outer penetration barrier of Escherichia coli K-12, Proteus mirabilis, and Pseudomonas aeruginosa. J Bacteriol (1972) 1.95
Control of replication of plasmid R1: structures and sequences of the antisense RNA, CopA, required for its binding to the target RNA, CopT. EMBO J (1990) 1.90
Plasmid R1 DNA replication dependent on protein synthesis in cell-free extracts of E. coli. Nature (1981) 1.88
In vitro induction of cecropin genes--an immune response in a Drosophila blood cell line. Biochem Biophys Res Commun (1992) 1.86
Molecular cloning, cDNA sequencing, and chemical synthesis of cecropin B from Hyalophora cecropia. Proc Natl Acad Sci U S A (1985) 1.85
Induction kinetics of beta-lactamase biosynthesis in Pseudomonas aeruginosa. Antimicrob Agents Chemother (1974) 1.85
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
A prospective nationwide study of Clostridium difficile-associated diarrhea in Sweden. The Swedish C. difficile Study Group. Clin Infect Dis (1998) 1.84
Clustering of genes involved in replication, copy number control, incompatibility, and stable maintenance of the resistance plasmid R1drd-19. J Bacteriol (1979) 1.80
Insect immunity. I. Characteristics of an inducible cell-free antibacterial reaction in hemolymph of Samia cynthia pupae. Infect Immun (1974) 1.78
Interaction of the mammalian antibacterial peptide cecropin P1 with phospholipid vesicles. Biochemistry (1995) 1.77
Outbreak of group A streptococcal bacteremia in Sweden: an epidemiologic and clinical study. J Infect Dis (1991) 1.75
Humoral immunity in Cecropia pupae. Curr Top Microbiol Immunol (1981) 1.74
Partition-mediated incompatibility of bacterial plasmids. Cell (1990) 1.72
Evidence for diffuse growth of the cylindrical portion of the Escherichia coli murein sacculus. J Bacteriol (1983) 1.71
Mutual suppression of mukB and seqA phenotypes might arise from their opposing influences on the Escherichia coli nucleoid structure. Mol Microbiol (1999) 1.70
Replication control of plasmid R1: RepA synthesis is regulated by CopA RNA through inhibition of leader peptide translation. EMBO J (1992) 1.70
Autolysis of Neisseria gonorrhoeae. J Bacteriol (1976) 1.65
Molecular epidemiology of hospital-associated and community-acquired Clostridium difficile infection in a Swedish county. J Clin Microbiol (2004) 1.62
Cell-wall lipopolysaccharides of ampicillin-resistant mutants of Escherichia coli K-12. Eur J Biochem (1976) 1.62
Protein A from Staphylococcus aureus: the biological significance of its reaction with IgG. Ann N Y Acad Sci (1974) 1.62
Shortened cecropin A-melittin hybrids. Significant size reduction retains potent antibiotic activity. FEBS Lett (1992) 1.61
Suppression of toxin production in Clostridium difficile VPI 10463 by amino acids. Microbiology (1999) 1.61
Isolation and characterization of new copy mutants of plasmid R1, and identification of a polypeptide involved in copy number control. Mol Gen Genet (1981) 1.56
Structural analysis of an RNA molecule involved in replication control of plasmid R1. Nucleic Acids Res (1986) 1.55
N-terminal analogues of cecropin A: synthesis, antibacterial activity, and conformational properties. Biochemistry (1985) 1.53
Automated method for determination of penicillins, cephalosporins, and penicillinases. Antimicrob Agents Chemother (1972) 1.53
Germ-free and colonized mice generate the same products from enteric prodefensins. J Biol Chem (2000) 1.52
Resistance of Escherichia coli to penicillins. 8. Physiology of a class II ampicillin-resistant mutant. J Bacteriol (1970) 1.52
Antibacterial peptide from H. pylori. Nature (1999) 1.51
Resistance of Escherichia coli to penicillins: identification of the structural gene for the chromosomal penicillinase. J Bacteriol (1973) 1.49
Replication of R-factor R1 in Scherichia coli K-12 at different growth rates. J Bacteriol (1975) 1.48
Correlation between surface and air counts of particles carrying aerobic bacteria in operating rooms with turbulent ventilation: an experimental study. J Hosp Infect (1999) 1.45
Changes in the composition of Escherichia coli murein as it ages during exponential growth. J Bacteriol (1983) 1.43
The nucleotide sequence of the replication control region of the resistance plasmid R1drd-19. Mol Gen Genet (1981) 1.41
Partitioning of plasmid R1 in Escherichia coli. II. Incompatibility properties of the partitioning system. Plasmid (1980) 1.39
Relation between nursing procedures, other local characteristics and transmission of enteric bacteria in neonatal wards. J Hosp Infect (1993) 1.39
Biochemical fingerprinting compared with ribotyping and pulsed-field gel electrophoresis of DNA for epidemiological typing of enterococci. J Clin Microbiol (1995) 1.38
The cox protein of bacteriophage P2 inhibits the formation of the repressor protein and autoregulates the early operon. EMBO J (1987) 1.38
Evidence for multisite growth of Escherichia coli murein involving concomitant endopeptidase and transpeptidase activities. J Bacteriol (1983) 1.38
Epidemiology of fecal strains of the family Enterobacteriaceae in 22 neonatal wards and influence of antibiotic policy. J Clin Microbiol (1988) 1.36
Effects of sublethal concentrations of benzylpenicillin on Pseudomonas aeruginosa. Antimicrob Agents Chemother (1974) 1.36
Insect immunity: isolation and structure of cecropins B and D from pupae of the Chinese oak silk moth, Antheraea pernyi. Eur J Biochem (1982) 1.35
Control of replication of plasmid R1: formation of an initial transient complex is rate-limiting for antisense RNA--target RNA pairing. EMBO J (1990) 1.35
Effects of streptomycin and novobiocin on Staphylococcus aureus gene expression. J Bacteriol (1978) 1.35
Transformation of vegetative cells of Bacillus thuringiensis by plasmid DNA. J Bacteriol (1987) 1.33
A highly repetitive, mariner-like element in the genome of Hyalophora cecropia. J Biol Chem (1991) 1.33
Escherichia coli cell cycle control genes affect chromosome superhelicity. EMBO Rep (2000) 1.33
Insertion of an R1 plasmid into the origin of replication of the E. coli chromosome: random timing of replication of the hybrid chromosome. Cell (1986) 1.33
Antibacterial peptides designed as analogs or hybrids of cecropins and melittin. Int J Pept Protein Res (1992) 1.32
Quorum-sensing acts at initiation of chromosomal replication in Escherichia coli. Proc Natl Acad Sci U S A (1998) 1.32