PubRank

D E Berg

Author PubWeight™ 281.05‹?›

Top papers

Rank Title Journal Year PubWeight™‹?›
1 The complete genome sequence of the gastric pathogen Helicobacter pylori. Nature 1997 34.00
2 Transposition of R factor genes to bacteriophage lambda. Proc Natl Acad Sci U S A 1975 9.28
3 DNA diversity among clinical isolates of Helicobacter pylori detected by PCR-based RAPD fingerprinting. Nucleic Acids Res 1992 8.86
4 Polarity of Tn5 insertion mutations in Escherichia coli. J Bacteriol 1980 7.55
5 Helicobacter pylori adhesin binding fucosylated histo-blood group antigens revealed by retagging. Science 1998 6.99
6 Analyses of the cag pathogenicity island of Helicobacter pylori. Mol Microbiol 1998 5.07
7 Rapid, efficient detection and drug susceptibility testing of Mycobacterium tuberculosis in sputum by microscopic observation of broth cultures. The Tuberculosis Working Group in Peru. J Clin Microbiol 2000 5.01
8 Recombination and clonal groupings within Helicobacter pylori from different geographical regions. Mol Microbiol 1999 4.72
9 Nomenclature of transposable elements in prokaryotes. Gene 1979 4.13
10 Two pathogenicity islands in uropathogenic Escherichia coli J96: cosmid cloning and sample sequencing. Infect Immun 1996 3.89
11 Metronidazole resistance in Helicobacter pylori is due to null mutations in a gene (rdxA) that encodes an oxygen-insensitive NADPH nitroreductase. Mol Microbiol 1998 3.44
12 Differences in genotypes of Helicobacter pylori from different human populations. J Bacteriol 2000 3.39
13 Emergence of recombinant strains of Helicobacter pylori during human infection. Mol Microbiol 1999 3.25
14 RAPD (arbitrary primer) PCR is more sensitive than multilocus enzyme electrophoresis for distinguishing related bacterial strains. Nucleic Acids Res 1993 3.10
15 Specificity of transposon Tn5 insertion. Genetics 1983 3.04
16 Epithelial attachment alters the outcome of Helicobacter pylori infection. Proc Natl Acad Sci U S A 1998 2.96
17 PCR-based subtractive hybridization and differences in gene content among strains of Helicobacter pylori. Proc Natl Acad Sci U S A 1998 2.93
18 Ordered cosmid library and high-resolution physical-genetic map of Helicobacter pylori strain NCTC11638. Mol Microbiol 1994 2.93
19 Long-term colonization with single and multiple strains of Helicobacter pylori assessed by DNA fingerprinting. J Clin Microbiol 1995 2.88
20 Distinctiveness of genotypes of Helicobacter pylori in Calcutta, India. J Bacteriol 2000 2.81
21 PCR-based RFLP analysis of DNA sequence diversity in the gastric pathogen Helicobacter pylori. Nucleic Acids Res 1992 2.62
22 Excision of transposon Tn5 is dependent on the inverted repeats but not on the transposase function of Tn5. Proc Natl Acad Sci U S A 1981 2.59
23 Helicobacter pylori genetic diversity and risk of human disease. J Clin Invest 2001 2.58
24 Diversity among clinical isolates of Histoplasma capsulatum detected by polymerase chain reaction with arbitrary primers. J Bacteriol 1992 2.54
25 Restriction enzyme cleavage map of Tn10, a transposon which encodes tetracycline resistance. J Bacteriol 1979 2.51
26 Insertion, excision, and inversion of Tn5. Cold Spring Harb Symp Quant Biol 1981 2.37
27 Tn5tac1, a derivative of transposon Tn5 that generates conditional mutations. Proc Natl Acad Sci U S A 1988 2.34
28 Did the inheritance of a pathogenicity island modify the virulence of Helicobacter pylori? Trends Microbiol 1997 2.33
29 IS50-mediated inverse transposition. Discrimination between the two ends of an IS element. J Mol Biol 1982 2.26
30 Nomenclature of transposable elements in prokaryotes. Plasmid 1979 2.17
31 Prevalence of vacuolating cytotoxin production and distribution of distinct vacA alleles in Helicobacter pylori from China. J Infect Dis 1998 2.09
32 Host specificity of Helicobacter pylori strains and host responses in experimentally challenged nonhuman primates. Gastroenterology 1999 1.96
33 Sequences essential for transposition at the termini of IS50. Proc Natl Acad Sci U S A 1983 1.96
34 Structural requirement for IS50-mediated gene transposition. Proc Natl Acad Sci U S A 1983 1.96
35 Bidirectional chain-termination nucleotide sequencing: transposon Tn5seq1 as a mobile source of primer sites. Gene 1988 1.95
36 cysQ, a gene needed for cysteine synthesis in Escherichia coli K-12 only during aerobic growth. J Bacteriol 1992 1.86
37 Metronidazole activation is mutagenic and causes DNA fragmentation in Helicobacter pylori and in Escherichia coli containing a cloned H. pylori RdxA(+) (Nitroreductase) gene. J Bacteriol 2000 1.83
38 Transient and persistent experimental infection of nonhuman primates with Helicobacter pylori: implications for human disease. Infect Immun 1996 1.81
39 Comparison of arbitrarily primed PCR and macrorestriction (pulsed-field gel electrophoresis) typing of Pseudomonas aeruginosa strains from cystic fibrosis patients. J Clin Microbiol 1995 1.79
40 Sequential inactivation of rdxA (HP0954) and frxA (HP0642) nitroreductase genes causes moderate and high-level metronidazole resistance in Helicobacter pylori. J Bacteriol 2000 1.77
41 Genetic evidence for two types of gene arrangements in new lambdadv plasmid mutants. J Mol Biol 1974 1.76
42 Characterization of VPI pathogenicity island and CTXphi prophage in environmental strains of Vibrio cholerae. J Bacteriol 2001 1.76
43 Novel sequence organization and insertion specificity of IS605 and IS606: chimaeric transposable elements of Helicobacter pylori. Gene 1998 1.71
44 Identification of base pairs in the outside end of insertion sequence IS50 that are needed for IS50 and Tn5 transposition. Proc Natl Acad Sci U S A 1987 1.70
45 Direct and crossover PCR amplification to facilitate Tn5supF-based sequencing of lambda phage clones. Nucleic Acids Res 1991 1.68
46 Local DNA sequence control of deletion formation in Escherichia coli plasmid pBR322. Genetics 1987 1.67
47 Factors affecting transposition activity of IS50 and Tn5 ends. Gene 1989 1.67
48 Inverted repeats of Tn5 are transposable elements. Proc Natl Acad Sci U S A 1982 1.64
49 Use of arbitrarily primed polymerase chain reaction analysis to type disease and carrier strains of Neisseria meningitidis isolated during a university outbreak. J Infect Dis 1994 1.63
50 Formation of supercoiling domains in plasmid pBR322. J Bacteriol 1989 1.62
51 The gene for a tRNA modifying enzyme, m5U54-methyltransferase, is essential for viability in Escherichia coli. Proc Natl Acad Sci U S A 1992 1.61
52 Tests of reciprocality in crossingover in partially diploid F strains of Escherichia coli. Genetics 1971 1.60
53 Efficient introduction of cloned mutant alleles into the Escherichia coli chromosome. J Bacteriol 1991 1.58
54 Absence of DNA sequences homologous to transposable element Tn5 (Kan) in the chromosome of Escherichia coli K-12. J Bacteriol 1978 1.49
55 Insertion of mini-IS605 and deletion of adjacent sequences in the nitroreductase (rdxA) gene cause metronidazole resistance in Helicobacter pylori NCTC11637. Antimicrob Agents Chemother 1999 1.48
56 Linear amplification DNA sequencing directly from single phage plaques and bacterial colonies. Nucleic Acids Res 1991 1.44
57 Adaptive mutation and cocolonization during Helicobacter pylori infection of gnotobiotic piglets. Infect Immun 1995 1.43
58 Transposon Tn5 target specificity: preference for insertion at G/C pairs. Genetics 1988 1.41
59 Cell vacuolation, a manifestation of the El tor hemolysin of Vibrio cholerae. Infect Immun 2000 1.41
60 Cell vacuolation caused by Vibrio cholerae hemolysin. Infect Immun 2001 1.40
61 The ilvG gene is expressed in Escherichia coli K-12. Gene 1980 1.40
62 Roles of FrxA and RdxA nitroreductases of Helicobacter pylori in susceptibility and resistance to metronidazole. J Bacteriol 2001 1.39
63 Fast DNA isolation from Histoplasma capsulatum: methodology for arbitrary primer polymerase chain reaction-based epidemiological and clinical studies. J Clin Microbiol 1993 1.38
64 Role of Helicobacter pylori cag region genes in colonization and gastritis in two animal models. Infect Immun 2001 1.33
65 Arbitrarily primed PCR DNA fingerprinting of Escherichia coli O157:H7 strains by using templates from boiled cultures. J Clin Microbiol 1995 1.31
66 Functional organization and insertion specificity of IS607, a chimeric element of Helicobacter pylori. J Bacteriol 2000 1.31
67 Functional analysis of the ffh-trmD region of the Escherichia coli chromosome by using reverse genetics. J Bacteriol 1995 1.28
68 Genetic diversity of Helicobacter pylori. Lancet 1996 1.26
69 Palindromy and the location of deletion endpoints in Escherichia coli. Genetics 1989 1.26
70 DNA sequence divergence among derivatives of Escherichia coli K-12 detected by arbitrary primer PCR (random amplified polymorphic DNA) fingerprinting. J Bacteriol 1994 1.24
71 Transfer of the lambda dv plasmid to new bacterial hosts. Virology 1974 1.23
72 Genes of phage lambda essential for lambda dv plasmids. Virology 1974 1.23
73 Tn5supF, a 264-base-pair transposon derived from Tn5 for insertion mutagenesis and sequencing DNAs cloned in phage lambda. Proc Natl Acad Sci U S A 1989 1.22
74 A derivative of Tn5 with direct terminal repeats can transpose. J Mol Biol 1982 1.21
75 Distribution of distinct vacA, cagA and iceA alleles in Helicobacter pylori in Hong Kong. Helicobacter 2001 1.20
76 Limits to the role of palindromy in deletion formation. J Bacteriol 1991 1.19
77 Control of gene expression by a mobile recombinational switch. Proc Natl Acad Sci U S A 1980 1.18
78 Importance of mRNA folding and start codon accessibility in the expression of genes in a ribosomal protein operon of Escherichia coli. J Mol Biol 1992 1.16
79 Modulation of Helicobacter pylori induced interleukin-8 synthesis in gastric epithelial cells mediated by cag PAI encoded VirD4 homologue. J Clin Pathol 1999 1.16
80 The m gamma delta-1 element, a small gamma delta (Tn1000) derivative useful for plasmid mutagenesis, allele replacement and DNA sequencing. Gene 1992 1.16
81 Intramolecular transposition by a synthetic IS50 (Tn5) derivative. J Bacteriol 1990 1.16
82 Isolation of a lambda dv plasmid carrying the bacterial gal operon. J Virol 1974 1.15
83 Mutations that affect Tn5 insertion into pBR322: importance of local DNA supercoiling. J Bacteriol 1990 1.15
84 High prevalence of Helicobacter pylori infection with dual resistance to metronidazole and clarithromycin in Hong Kong. Aliment Pharmacol Ther 2000 1.15
85 Control of transposon Tn5 transposition in Escherichia coli. Proc Natl Acad Sci U S A 1982 1.14
86 Corrected identity of isolates of Helicobacter pylori reference strain NCTC11637. Helicobacter 1997 1.12
87 Multiple genes in the left half of the cag pathogenicity island of Helicobacter pylori are required for tyrosine kinase-dependent transcription of interleukin-8 in gastric epithelial cells. Infect Immun 1999 1.11
88 Reinfection after successful eradication of Helicobacter pylori: a 2-year prospective study in Alaska Natives. Aliment Pharmacol Ther 2006 1.11
89 recA-independent recombination between repeated IS50 elements is not caused by an IS50-encoded function. J Bacteriol 1985 1.10
90 Deletions in plasmid pBR322: replication slippage involving leading and lagging strands. Genetics 1991 1.10
91 Helicobacter pylori with separate beta- and beta'-subunits of RNA polymerase is viable and can colonize conventional mice. Mol Microbiol 1999 1.09
92 Specificities of eleven different DNA methyltransferases of Helicobacter pylori strain 26695. J Bacteriol 2001 1.07
93 The largest subunits of RNA polymerase from gastric helicobacters are tethered. J Biol Chem 1998 1.07
94 Mycoplasma gallisepticum strain differentiation by arbitrary primer PCR (RAPD) fingerprinting. Mol Cell Probes 1994 1.06
95 High prevalence of mixed infections by Helicobacter pylori in Hong Kong: metronidazole sensitivity and overall genotype. Aliment Pharmacol Ther 2001 1.06
96 Curvularia lunata endocarditis treated with terbinafine: case report. Clin Infect Dis 1993 1.06
97 Expression of histo-blood group antigens by lipopolysaccharides of Helicobacter pylori strains from asian hosts: the propensity to express type 1 blood-group antigens. Glycobiology 2000 1.05
98 Genotypes of Helicobacter pylori in Lithuanian families. Helicobacter 1998 1.04
99 Mutational analysis of the Escherichia coli serB promoter region reveals transcriptional linkage to a downstream gene. Gene 1992 1.03
100 Mechanism of IS1 transposition in E. coli: choice between simple insertion and cointegration. Genetics 1984 1.03
101 Transposon Tn5supF-based reverse genetic method for mutational analysis of Escherichia coli with DNAs cloned in lambda phage. J Bacteriol 1991 1.03
102 Aspirin inhibits the growth of Helicobacter pylori and enhances its susceptibility to antimicrobial agents. Gut 2003 1.02
103 Mechanism of F factor-enhanced excision of transposon Tn5. Gene 1983 1.02
104 Specificity of deletion events in pBR322. Plasmid 1989 1.01
105 Structure and stability of transposon 5-mediated cointegrates. J Mol Biol 1982 1.01
106 Inversions and deletions generated by a mini-gamma delta (Tn1000) transposon. J Bacteriol 1994 0.99
107 Transductional instability of Tn5-induced mutations: generalized and specialized transduction of Tn5 by bacteriophage P1. Genetics 1983 0.99
108 IS50-mediated inverse transposition: specificity and precision. Gene 1985 0.98
109 Transcriptional control of IS1 transposition in Escherichia coli. J Mol Biol 1984 0.98
110 pDUAL: a transposon-based cosmid cloning vector for generating nested deletions and DNA sequencing templates in vivo. Proc Natl Acad Sci U S A 1993 0.98
111 Mutagenesis of Bordetella pertussis with transposon Tn5tac1: conditional expression of virulence-associated genes. J Bacteriol 1990 0.96
112 Transposon-facilitated sequencing of DNAs cloned in plasmids. Methods Enzymol 1993 0.94
113 Mouse-colonizing Helicobacter pylori SS1 is unusually susceptible to metronidazole due to two complementary reductase activities. Antimicrob Agents Chemother 2000 0.93
114 Identification of potential diagnostic and vaccine candidates of Helicobacter pylori by two-dimensional gel electrophoresis, sequence analysis, and serum profiling. Clin Diagn Lab Immunol 1998 0.93
115 N protein causes the lambda dv plasmid to inhibit heteroimmune phage lambda imm434 growth and stimulates lambda dv replication. Virology 1974 0.91
116 Specificity of bacteriophage Mu excision. Mol Gen Genet 1987 0.91
117 Mechanisms of transposition in bacteria. Basic Life Sci 1985 0.90
118 A comparison of a string test-PCR assay and a stool antigen immunoassay (HpSA) for Helicobacter pylori screening in Peru. Trans R Soc Trop Med Hyg 2001 0.90
119 Pseudomonas aeruginosa corneal ulcer isolates distinguished using the arbitrarily primed PCR DNA fingerprinting method. Curr Eye Res 1994 0.90
120 Identification of differentially regulated proteins in metronidozole resistant Helicobacter pylori by proteome techniques. Proteomics 2001 0.89
121 Sequences essential for IS50 transposition. The first base-pair. J Mol Biol 1985 0.89
122 Epidemiology of cagA/vacA genes in H. pylori isolated from children and adults in Poland. J Physiol Pharmacol 1997 0.89
123 Most Helicobacter pylori strains of Kolkata in India are resistant to metronidazole but susceptible to other drugs commonly used for eradication and ulcer therapy. Aliment Pharmacol Ther 2005 0.89
124 Context effects in the formation of deletions in Escherichia coli. Genetics 1990 0.87
125 pBR322-derived multicopy plasmids harboring large inserts are often dimers in Escherichia coli K-12. Plasmid 1989 0.87
126 Transposition effect of adenine (Dam) methylation on activity of O end mutants of IS50. J Mol Biol 1989 0.87
127 Identification of potential diagnostic and vaccine candidates of Helicobacter pylori by "proteome" technologies. Helicobacter 1998 0.87
128 Transposon Tn5: specific sequence recognition and conservative transposition. Cold Spring Harb Symp Quant Biol 1984 0.86
129 DNA sequence conservation and diversity in transposable element IS605 of Helicobacter pylori. Helicobacter 1998 0.86
130 Analysis of CRP-CytR interactions at the Escherichia coli udp promoter. J Bacteriol 1996 0.86
131 Cloning and characterization of hemolytic genes from Helicobacter pylori. Infect Immun 1995 0.85
132 Nonrandom orientation of transposon Tn5supF insertions in phage lambda. Gene 1992 0.85
133 Cure of Helicobacter pylori infection by omeprazole-clarithromycin-based therapy in non-human primates. J Gastroenterol 1998 0.84
134 Tn5 insertion specificity is not influenced by IS50 end sequences in target DNA. Mol Gen Genet 1991 0.84
135 Accessory DNAs in the bacterial gene pool: playground for coevolution. Ciba Found Symp 1984 0.84
136 Fused and overlapping rpoB and rpoC genes in Helicobacters, Campylobacters, and related bacteria. J Bacteriol 1999 0.83
137 Saturation mutagenesis of the inside end of insertion sequence IS50. Gene 1989 0.83
138 Construction of a genomic DNA 'feature map' by sequencing from nested deletions: application to the HLA class I region. Nucleic Acids Res 1995 0.82
139 Localization of action of the IS50-encoded transposase protein. Genetics 1986 0.82
140 Efficient large-scale sequencing of the Escherichia coli genome: implementation of a transposon- and PCR-based strategy for the analysis of ordered lambda phage clones. Nucleic Acids Res 1992 0.81
141 PCR-based diagnosis of Helicobacter pylori infection in Polish children and adults. J Med Microbiol 1999 0.81
142 A sequence at the inside end of IS50 down regulates transposition. Plasmid 1991 0.81
143 Transposon-based and polymerase chain reaction-based sequencing of DNAs cloned in lambda phage. Methods Enzymol 1993 0.78
144 Characterization of a Helicobacter pylori vaccine candidate by proteome techniques. J Chromatogr B Biomed Sci Appl 1998 0.78
145 The Nonhuman Primate Model for H. pylori Infection. Methods Mol Med 1997 0.78
146 Molecular & evolutionary genetics & drug resistance of the gastric pathogen, Helicobacter pylori. Indian J Med Res 2002 0.77
147 Estimation of vacuolating cytotoxin secreted by different strains of Helicobacter pylori using bead enzyme-linked immunosorbent assay & its correlation with bacterial genotype. Indian J Med Res 2001 0.76
148 Viability of folA-null derivatives of wild-type (thyA+) Escherichia coli K-12. J Bacteriol 1993 0.75
149 A product of the TN5 transposase gene inhibits transposition. Genetics 1983 0.75
150 A plan for preventing student suicide. Sch Health Rev 1970 0.75
151 Restriction map of a 35-kb HLA fragment constructed by nested deletion 'drop-out' mapping. Gene 1995 0.75
152 Venous thrombosis: antithrombin III deficiency. Crit Care Nurs Clin North Am 1993 0.75
153 Activation of the coagulation system in Gulf War Illness: a potential pathophysiologic link with chronic fatigue syndrome. A laboratory approach to diagnosis. Blood Coagul Fibrinolysis 2000 0.75
154 Reoperation: cardiac surgery. AACN Clin Issues Crit Care Nurs 1990 0.75
155 Components and defects of the coagulation system. Nurse Pract Forum 1992 0.75
156 Association between serum and secretory immunoglobulins and chronic otitis media in Indian children. Ann Otol Rhinol Laryngol 1971 0.75
157 Recognition and management of bleeding following cardiac surgery. Crit Care Nurs Clin North Am 1991 0.75
158 Genotypes of Helicobacter pylori in Polish population. Acta Microbiol Pol 1999 0.75
159 Conditional dihydrofolate reductase deficiency due to transposon Tn5tac1 insertion downstream from the folA gene in Escherichia coli. Gene 1993 0.75
160 Fate of Campylobacter jejuni in butter. J Food Prot 2000 0.75