Literature DB >> 172487

Operator-constitutive mutants in the threonine operon of Escherichia coli K-12.

I Saint-Girons, D Margarita.   

Abstract

Three Escherichia coli K-12 mutant strains resistant to DL-alpha-amino-beta-hydroxyvaleric acid were isolated in which the expression of the thr operon is constitutive. The localization and dominance properties of the mutations involved, called thrO, are those of operator mutations. The gene sequence is OABC as suggested by earlier studies.

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Year:  1975        PMID： 172487      PMCID： PMC236018          DOI： 10.1128/jb.124.3.1137-1141.1975

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


  14 in total

1.  [Retro-inhibition and repression of the homoserine dehydrogenase of Escherichia coli].

Authors:  J C PATTE; G LE BRAS; T LOVINY; G N COHEN
Journal:  Biochim Biophys Acta       Date:  1963-01-08

2.  Multivalent repression in the biosynthesis of threonine in Salmonella typhimurium and Escherichia coli.

Authors:  M FREUNDLICH
Journal:  Biochem Biophys Res Commun       Date:  1963-02-06       Impact factor: 3.575

3.  Regulation of threonine biosynthesis in Escherichia coli.

Authors:  E H WORMSER; A B PARDEE
Journal:  Arch Biochem Biophys       Date:  1958-12       Impact factor: 4.013

4.  Transduction of linked genetic characters of the host by bacteriophage P1.

Authors:  E S LENNOX
Journal:  Virology       Date:  1955-07       Impact factor: 3.616

5.  Characterization of a defective lambda bacteriophage transducing the threonine operon of Escherichia coli K12.

Authors:  J Théze; D Margarita
Journal:  Mol Gen Genet       Date:  1974

6.  Alteration of structure of level of threonyl-tRNA-synthetase in Borrelidin resistant mutants of E. coli.

Authors:  G Nass; J Thomale
Journal:  FEBS Lett       Date:  1974-02-15       Impact factor: 4.124

7.  Threonine synthetase of Bacillus subtilis. The nature of an associated dehydratase activity.

Authors:  M T Skarstedt; S B Greer
Journal:  J Biol Chem       Date:  1973-02-10       Impact factor: 5.157

8.  Mapping of the structural genes of the three aspartokinases and of the two homoserine dehydrogenases of Escherichia coli K-12.

Authors:  J Thèze; D Margarita; G N Cohen; F Borne; J C Patte
Journal:  J Bacteriol       Date:  1974-01       Impact factor: 3.490

9.  A simple method for making new transducing lines of coliphage lambda.

Authors:  W J Schrenk; R A Weisberg
Journal:  Mol Gen Genet       Date:  1975

10.  Threonine locus of Escherichia coli K-12: genetic structure and evidence for an operon.

Authors:  J Thèze; I Saint-Girons
Journal:  J Bacteriol       Date:  1974-06       Impact factor: 3.490
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  10 in total

1.  Construction and expression of a hybrid plasmid containing the Escherichia coli thrA and thrB genes.

Authors:  P Cossart; M Katinka; M Yaniv; I Saint Girons; G N Cohen
Journal:  Mol Gen Genet       Date:  1979-08

Review 2.  Linkage map of Escherichia coli K-12, edition 6.

Authors:  B J Bachmann; K B Low
Journal:  Microbiol Rev       Date:  1980-03

3.  New regulatory mutations affecting the expression of the threonine operon in Escherichia coli K-12.

Authors:  I Saint-Girons
Journal:  Mol Gen Genet       Date:  1978-06-01

4.  Regulation of the threonine operon: tandem threonine and isoleucine codons in the control region and translational control of transcription termination.

Authors:  J F Gardner
Journal:  Proc Natl Acad Sci U S A       Date:  1979-04       Impact factor: 11.205

5.  Threonyl-transfer ribonucleic acid synthetase and the regulation of the threonine operon in Escherichia coli.

Authors:  E J Johnson; G N Cohen; I Saint-Girons
Journal:  J Bacteriol       Date:  1977-01       Impact factor: 3.490

6.  Fine structure analysis of the threonine operon in Escherichia coli K-12.

Authors:  I Saint-Girons; D Margarita
Journal:  Mol Gen Genet       Date:  1978-06-01

7.  Threonine production by regulatory mutants of Serratia marcescens.

Authors:  S Komatsubara; M Kisumi; K Murata; I Chibata
Journal:  Appl Environ Microbiol       Date:  1978-05       Impact factor: 4.792

8.  Attenuation regulation in the thr operon of Escherichia coli K-12: molecular cloning and transcription of the controlling region.

Authors:  S P Lynn; J F Gardner; W S Reznikoff
Journal:  J Bacteriol       Date:  1982-10       Impact factor: 3.490

9.  Production of threonine by Brevibacterium flavum containing threonine biosynthesis genes from Escherichia coli.

Authors:  M Pátek; J Hochmannová; J Nesvera
Journal:  Folia Microbiol (Praha)       Date:  1993       Impact factor: 2.099

10.  Evidence that repression mechanisms can exert control over the thr, leu, and ilv operons of Escherichia coli K-12.

Authors:  D I Johnson; R L Somerville
Journal:  J Bacteriol       Date:  1983-07       Impact factor: 3.490
  10 in total

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