Literature DB >> 10103209

Molecular basis of AmpC hyperproduction in clinical isolates of Escherichia coli.

E C Nelson1, B G Elisha.   

Abstract

DNA sequencing data showed that five clinical isolates of Escherichia coli with reduced susceptibility to ceftazidime, ceftriaxone, and cefotaxime contain an ampC gene that is preceded by a strong promoter. Transcription from the strong promoter was 8- to 18-fold higher than that from the promoter from a susceptible isolate. RNA studies showed that mRNA stability does not play a role in the control of AmpC synthesis.

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Year:  1999        PMID： 10103209      PMCID： PMC89235     

Source DB:  PubMed          Journal:  Antimicrob Agents Chemother        ISSN： 0066-4804            Impact factor:   5.191


  17 in total

1.  Insertion of IS2 creates a novel ampC promoter in Escherichia coli.

Authors:  B Jaurin; S Normark
Journal:  Cell       Date:  1983-03       Impact factor: 41.582

Review 2.  Compilation and analysis of Escherichia coli promoter DNA sequences.

Authors:  D K Hawley; W R McClure
Journal:  Nucleic Acids Res       Date:  1983-04-25       Impact factor: 16.971

3.  ampC cephalosporinase of Escherichia coli K-12 has a different evolutionary origin from that of beta-lactamases of the penicillinase type.

Authors:  B Jaurin; T Grundström
Journal:  Proc Natl Acad Sci U S A       Date:  1981-08       Impact factor: 11.205

4.  Improved M13 phage cloning vectors and host strains: nucleotide sequences of the M13mp18 and pUC19 vectors.

Authors:  C Yanisch-Perron; J Vieira; J Messing
Journal:  Gene       Date:  1985       Impact factor: 3.688

Review 5.  beta-Lactamases in laboratory and clinical resistance.

Authors:  D M Livermore
Journal:  Clin Microbiol Rev       Date:  1995-10       Impact factor: 26.132

6.  ampC beta-lactamase hyperproduction in Escherichia coli: natural ampicillin resistance generated by horizontal chromosomal DNA transfer from Shigella.

Authors:  O Olsson; S Bergström; F P Lindberg; S Normark
Journal:  Proc Natl Acad Sci U S A       Date:  1983-12       Impact factor: 11.205

7.  Isolation and characterization of DNA repetitions carrying the chromosomal beta-lactamase gene of Escherichia coli K-12.

Authors:  T Edlund; T Grundström; S Normark
Journal:  Mol Gen Genet       Date:  1979-06-07

8.  The E. coli beta-lactamase attenuator mediates growth rate-dependent regulation.

Authors:  B Jaurin; T Grundström; T Edlund; S Normark
Journal:  Nature       Date:  1981-03-19       Impact factor: 49.962

9.  Recombination between short DNA homologies causes tandem duplication.

Authors:  T Edlund; S Normark
Journal:  Nature       Date:  1981-07-16       Impact factor: 49.962

10.  Selection and characterization of beta-lactam-resistant Escherichia coli K-12 mutants.

Authors:  A Jaffé; Y A Chabbert; E Derlot
Journal:  Antimicrob Agents Chemother       Date:  1983-04       Impact factor: 5.191
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  27 in total

1.  What's New in beta-lactamases?

Authors:  Patricia A. Bradford
Journal:  Curr Infect Dis Rep       Date:  2001-02       Impact factor: 3.725

Review 2.  Plasmid-determined AmpC-type beta-lactamases.

Authors:  Alain Philippon; Guillaume Arlet; George A Jacoby
Journal:  Antimicrob Agents Chemother       Date:  2002-01       Impact factor: 5.191

3.  Detection of plasmid-mediated AmpC beta-lactamase genes in clinical isolates by using multiplex PCR.

Authors:  F Javier Pérez-Pérez; Nancy D Hanson
Journal:  J Clin Microbiol       Date:  2002-06       Impact factor: 5.948

4.  Activities of imipenem and cephalosporins against clonally related strains of Escherichia coli hyperproducing chromosomal beta-lactamase and showing altered porin profiles.

Authors:  L Martínez-Martínez; M C Conejo; A Pascual; S Hernández-Allés; S Ballesta; E Ramírez De Arellano-Ramos; V J Benedí; E J Perea
Journal:  Antimicrob Agents Chemother       Date:  2000-09       Impact factor: 5.191

5.  Practical approach for reliable detection of AmpC beta-lactamase-producing Enterobacteriaceae.

Authors:  Silke Polsfuss; Guido V Bloemberg; Jacqueline Giger; Vera Meyer; Erik C Böttger; Michael Hombach
Journal:  J Clin Microbiol       Date:  2011-06-01       Impact factor: 5.948

6.  High-level expression of ampC beta-lactamase due to insertion of nucleotides between -10 and -35 promoter sequences in Escherichia coli clinical isolates: cases not responsive to extended-spectrum-cephalosporin treatment.

Authors:  L K Siu; Po-Liang Lu; J-Y Chen; F M Lin; Shan-Chwen Chang
Journal:  Antimicrob Agents Chemother       Date:  2003-07       Impact factor: 5.191

7.  -11 Mutation in the ampC promoter increasing resistance to beta-lactams in a clinical Escherichia coli strain.

Authors:  S Corvec; N Caroff; E Espaze; J Marraillac; A Reynaud
Journal:  Antimicrob Agents Chemother       Date:  2002-10       Impact factor: 5.191

8.  Molecular characterization of cefoxitin-resistant Escherichia coli from Canadian hospitals.

Authors:  Michael R Mulvey; Elizabeth Bryce; David A Boyd; Marianna Ofner-Agostini; Allison M Land; Andrew E Simor; Shirley Paton
Journal:  Antimicrob Agents Chemother       Date:  2005-01       Impact factor: 5.191

9.  Beta-lactamases in ampicillin-resistant Escherichia coli isolates from foods, humans, and healthy animals.

Authors:  Laura Briñas; Myriam Zarazaga; Yolanda Sáenz; Fernanda Ruiz-Larrea; Carmen Torres
Journal:  Antimicrob Agents Chemother       Date:  2002-10       Impact factor: 5.191

10.  Evaluation of the NCCLS extended-spectrum beta-lactamase confirmation methods for Escherichia coli with isolates collected during Project ICARE.

Authors:  Fred C Tenover; Patti M Raney; Portia P Williams; J Kamile Rasheed; James W Biddle; Antonio Oliver; Scott K Fridkin; Laura Jevitt; John E McGowan
Journal:  J Clin Microbiol       Date:  2003-07       Impact factor: 5.948
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