Literature DB >> 1675635

The tyrosine repressor negatively regulates aroH expression in Escherichia coli.

G K Muday1, D I Johnson, R L Somerville, K M Herrmann.   

Abstract

The levels of the tryptophan-sensitive isoenzyme of 3-deoxy-D-arabino-heptulosonate 7-phosphate synthase of Escherichia coli, encoded by the aroH gene, were elevated in tyrR and/or trpR mutants. The effect of tyrR and trpR lesions on aroH expression was confirmed by using a lacZ reporter system. The mutational elimination of either repressor led to a threefold increase in beta-galactosidase.

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Year:  1991        PMID： 1675635      PMCID： PMC208031          DOI： 10.1128/jb.173.12.3930-3932.1991

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


  25 in total

1.  Mutational analysis of the catalytic and feedback sites of the tryptophan-sensitive 3-deoxy-D-arabino-heptulosonate-7-phosphate synthase of Escherichia coli.

Authors:  J M Ray; C Yanofsky; R Bauerle
Journal:  J Bacteriol       Date:  1988-12       Impact factor: 3.490

2.  trp repressor interactions with the trp aroH and trpR operators. Comparison of repressor binding in vitro and repression in vivo.

Authors:  L S Klig; J Carey; C Yanofsky
Journal:  J Mol Biol       Date:  1988-08-20       Impact factor: 5.469

3.  Nucleotide sequence of the transcription unit containing the aroL and aroM genes from Escherichia coli K-12.

Authors:  R C DeFeyter; B E Davidson; J Pittard
Journal:  J Bacteriol       Date:  1986-01       Impact factor: 3.490

4.  Transcription control of the aroP gene in Escherichia coli K-12: analysis of operator mutants.

Authors:  M L Chye; J Pittard
Journal:  J Bacteriol       Date:  1987-01       Impact factor: 3.490

5.  Regulatory mutants of the aroF-tyrA operon of Escherichia coli K-12.

Authors:  C S Cobbett; M L Delbridge
Journal:  J Bacteriol       Date:  1987-06       Impact factor: 3.490

6.  Molecular analysis of the regulatory region of the Escherichia coli K-12 tyrB gene.

Authors:  J Yang; J Pittard
Journal:  J Bacteriol       Date:  1987-10       Impact factor: 3.490

7.  Operator mutations of the Escherichia coli aroF gene.

Authors:  C C Garner; K M Herrmann
Journal:  J Biol Chem       Date:  1985-03-25       Impact factor: 5.157

8.  Regulation of the aroH operon of Escherichia coli by the tryptophan repressor.

Authors:  C L Grove; R P Gunsalus
Journal:  J Bacteriol       Date:  1987-05       Impact factor: 3.490

9.  Repression of aromatic amino acid biosynthesis in Escherichia coli K-12.

Authors:  K D Brown; R L Somerville
Journal:  J Bacteriol       Date:  1971-10       Impact factor: 3.490

10.  The tryptophan-specific permease gene, mtr, is differentially regulated by the tryptophan and tyrosine repressors in Escherichia coli K-12.

Authors:  V M Heatwole; R L Somerville
Journal:  J Bacteriol       Date:  1991-06       Impact factor: 3.490
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  10 in total

1.  The Shikimate Pathway: Early Steps in the Biosynthesis of Aromatic Compounds.

Authors:  K. M. Herrmann
Journal:  Plant Cell       Date:  1995-07       Impact factor: 11.277

Review 2.  Linkage map of Escherichia coli K-12, edition 10: the traditional map.

Authors:  M K Berlyn
Journal:  Microbiol Mol Biol Rev       Date:  1998-09       Impact factor: 11.056

3.  Mutations in the tyrR gene of Escherichia coli which affect TyrR-mediated activation but not TyrR-mediated repression.

Authors:  J Yang; H Camakaris; A J Pittard
Journal:  J Bacteriol       Date:  1993-10       Impact factor: 3.490

4.  A mutational analysis of the structural basis for transcriptional activation and monomer-monomer interaction in the TyrR system of Escherichia coli K-12.

Authors:  J Cui; R L Somerville
Journal:  J Bacteriol       Date:  1993-03       Impact factor: 3.490

5.  Mutational uncoupling of the transcriptional activation function of the TyrR protein of Escherichia coli K-12 from the repression function.

Authors:  J Cui; R L Somerville
Journal:  J Bacteriol       Date:  1993-01       Impact factor: 3.490

Review 6.  The shikimate pathway as an entry to aromatic secondary metabolism.

Authors:  K M Herrmann
Journal:  Plant Physiol       Date:  1995-01       Impact factor: 8.340

7.  Cloning of the trp gene cluster from a tryptophan-hyperproducing strain of Corynebacterium glutamicum: identification of a mutation in the trp leader sequence.

Authors:  D M Heery; L K Dunican
Journal:  Appl Environ Microbiol       Date:  1993-03       Impact factor: 4.792

8.  Impaired Wound Induction of 3-Deoxy-D-arabino-heptulosonate-7-phosphate (DAHP) Synthase and Altered Stem Development in Transgenic Potato Plants Expressing a DAHP Synthase Antisense Construct.

Authors:  J. D. Jones; J. M. Henstrand; A. K. Handa; K. M. Herrmann; S. C. Weller
Journal:  Plant Physiol       Date:  1995-08       Impact factor: 8.340

9.  Synergism between the Trp repressor and Tyr repressor in repression of the aroL promoter of Escherichia coli K-12.

Authors:  V M Heatwole; R L Somerville
Journal:  J Bacteriol       Date:  1992-01       Impact factor: 3.490

10.  Aromatic amino acid biosynthesis in Buchnera aphidicola (endosymbiont of aphids): cloning and sequencing of a DNA fragment containing aroH-thrS-infC-rpmI-rplT.

Authors:  D Kolibachuk; D Rouhbakhsh; P Baumann
Journal:  Curr Microbiol       Date:  1995-05       Impact factor: 2.188
  10 in total

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