Literature DB >> 1917851

Transcriptional organization of the rfaGBIJ locus of Salmonella typhimurium.

R Brazas1, E Davie, A Farewell, L I Rothfield.   

Abstract

The transcriptional organization of the rfaGBIJ gene cluster of Salmonella typhimurium was studied by using lacZ and cat transcriptional probes. The results indicated that the leftward end of the gene cluster (rfaG-rfaB-rfaI) is an operon that is transcribed from one or more promoters that lie upstream of rfaG. The results further indicated that the product of the rfaH (sfrB) gene acts as a positive regulator of transcription of the entire rfaGBIJ cluster. At least one site required for the RfaH-mediated transcriptional regulation lies within or very close to the upstream promoter.

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Year:  1991        PMID： 1917851      PMCID： PMC208367          DOI： 10.1128/jb.173.19.6168-6173.1991

Source DB:  PubMed          Journal:  J Bacteriol        ISSN： 0021-9193            Impact factor:   3.490


  19 in total

1.  Gene Q antiterminator proteins of Escherichia coli phages 82 and lambda suppress pausing by RNA polymerase at a rho-dependent terminator and at other sites.

Authors:  X J Yang; J W Roberts
Journal:  Proc Natl Acad Sci U S A       Date:  1989-07       Impact factor: 11.205

2.  Suppression of the abnormal phenotype of Salmonella typhimurium rfaH mutants by mutations in the gene for transcription termination factor Rho.

Authors:  A Farewell; R Brazas; E Davie; J Mason; L I Rothfield
Journal:  J Bacteriol       Date:  1991-08       Impact factor: 3.490

3.  Genetic analysis of lipopolysaccharide core biosynthesis by Escherichia coli K-12: insertion mutagenesis of the rfa locus.

Authors:  E A Austin; J F Graves; L A Hite; C T Parker; C A Schnaitman
Journal:  J Bacteriol       Date:  1990-09       Impact factor: 3.490

Review 4.  Linkage map of Salmonella typhimurium, edition VII.

Authors:  K E Sanderson; J R Roth
Journal:  Microbiol Rev       Date:  1988-12

Review 5.  Phage lambda and the regulation of transcription termination.

Authors:  J W Roberts
Journal:  Cell       Date:  1988-01-15       Impact factor: 41.582

6.  Non-smooth mutants of Salmonella typhimurium: differentiation by phage sensitivity and genetic mapping.

Authors:  R G Wilkinson; P Gemski; B A Stocker
Journal:  J Gen Microbiol       Date:  1972-05

7.  Antitermination of E. coli rRNA transcription is caused by a control region segment containing lambda nut-like sequences.

Authors:  S C Li; C L Squires; C Squires
Journal:  Cell       Date:  1984-10       Impact factor: 41.582

8.  New Tn10 derivatives for transposon mutagenesis and for construction of lacZ operon fusions by transposition.

Authors:  J C Way; M A Davis; D Morisato; D E Roberts; N Kleckner
Journal:  Gene       Date:  1984-12       Impact factor: 3.688

9.  Cloning of rfaG, B, I, and J genes for glycosyltransferase enzymes for synthesis of the lipopolysaccharide core of Salmonella typhimurium.

Authors:  S K Kadam; A Rehemtulla; K E Sanderson
Journal:  J Bacteriol       Date:  1985-01       Impact factor: 3.490

10.  Phage lambda gene Q antiterminator recognizes RNA polymerase near the promoter and accelerates it through a pause site.

Authors:  E J Grayhack; X J Yang; L F Lau; J W Roberts
Journal:  Cell       Date:  1985-08       Impact factor: 41.582
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  7 in total

1.  RfaB, a galactosyltransferase, contributes to the resistance to detergent and the virulence of Salmonella enterica serovar Enteritidis.

Authors:  Jing Su; Dommo Timbely; Minmin Zhu; Xiaomei Hua; Biao Liu; Yanjun Pang; Hengguan Shen; Jinliang Qi; Yonghua Yang
Journal:  Med Microbiol Immunol       Date:  2009-04-29       Impact factor: 3.402

2.  Genetic analysis of the genes involved in synthesis of the lipopolysaccharide core in Escherichia coli K-12: three operons in the rfa locus.

Authors:  C Roncero; M J Casadaban
Journal:  J Bacteriol       Date:  1992-05       Impact factor: 3.490

Review 3.  Genetics of lipopolysaccharide biosynthesis in enteric bacteria.

Authors:  C A Schnaitman; J D Klena
Journal:  Microbiol Rev       Date:  1993-09

4.  Enhancing transcription through the Escherichia coli hemolysin operon, hlyCABD: RfaH and upstream JUMPStart DNA sequences function together via a postinitiation mechanism.

Authors:  J A Leeds; R A Welch
Journal:  J Bacteriol       Date:  1997-06       Impact factor: 3.490

5.  Down-regulation of key virulence factors makes the Salmonella enterica serovar Typhimurium rfaH mutant a promising live-attenuated vaccine candidate.

Authors:  Gábor Nagy; Vittoria Danino; Ulrich Dobrindt; Mark Pallen; Roy Chaudhuri; Levente Emödy; Jay C Hinton; Jörg Hacker
Journal:  Infect Immun       Date:  2006-10       Impact factor: 3.441

Review 6.  Genetic map of Salmonella typhimurium, edition VIII.

Authors:  K E Sanderson; A Hessel; K E Rudd
Journal:  Microbiol Rev       Date:  1995-06

7.  RfaH enhances elongation of Escherichia coli hlyCABD mRNA.

Authors:  J A Leeds; R A Welch
Journal:  J Bacteriol       Date:  1996-04       Impact factor: 3.490
  7 in total

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