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Literature DB >> 334742

Regulation of aromatic amino acid transport systems in Escherichia coli K-12.

Abstract

The regulation of the aromatic amino acid transport systems was investigated. The common (general) aromatic transport system and the tyrosine-specific transport system were found to be subject to repression control, thus confirming earlier reports. In addition, tryosine- and tryptophan-specific transport were found to be enhanced by growth of cells with phenylalanine. The repression and enhancement of the transport systems was abolished in a strain carrying an amber mutation in the regulator gene tyrR. This indicates that the tyrR gene product, which was previously shown to be involved in regulation of aromatic biosynthetic enzymes, is also involved in the regulation of the aromatic amino acid transport systems.

Entities: Chemical Gene Species

Mesh：

Substances：

Year: 1977 PMID： 334742 PMCID： PMC221884 DOI： 10.1128/jb.132.2.453-461.1977

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

20 in total

1. Role of leucyl-tRNA synthetase in regulation of branched-chain amino-acid transport.

Authors: S C Quay; E L Kline; D L Oxender
Journal: Proc Natl Acad Sci U S A Date: 1975-10 Impact factor: 11.205

2. STUDIES ON TRYPTOPHAN PERMEASE IN ESCHERICHIA COLI.

Authors: S E BURROUS; R D DEMOSS
Journal: Biochim Biophys Acta Date: 1963-08-06

3. [The biosynthesis of beta-galactosidase (lactase) in Escherichia coli; the specificity of induction].

Authors: J MONOD; G COHEN-BAZIRE; M COHN
Journal: Biochim Biophys Acta Date: 1951-11

Review 4. Recalibrated linkage map of Escherichia coli K-12.

Authors: B J Bachmann; K B Low; A L Taylor
Journal: Bacteriol Rev Date: 1976-03

5. Maintenance and exchange of the aromatic amino acid pool in Escherichia coli.

Authors: K D Brown
Journal: J Bacteriol Date: 1971-04 Impact factor: 3.490

6. Regulation of branched-chain amino acid transport in Escherichia coli.

Authors: S C Quay; D L Oxender
Journal: J Bacteriol Date: 1976-09 Impact factor: 3.490

7. Phenylalanine and tyrosine biosynthesis in Escherichia coli K-12: mutants derepressed for 3-deoxy-D-arabinoheptulosonic acid 7-phosphate synthetase (phe), 3-deoxy-D-arabinoheptulosonic acid 7-phosphate synthetase (tyr), chorismate mutase T-prephenate dehydrogenase, and transaminase A.

Authors: S W Im; H Davidson; J Pittard
Journal: J Bacteriol Date: 1971-10 Impact factor: 3.490

2. Demonstration that the TyrR protein and RNA polymerase complex formed at the divergent P3 promoter inhibits binding of RNA polymerase to the major promoter, P1, of the aroP gene of Escherichia coli.

Authors: P Wang; J Yang; A Ishihama; A J Pittard
Journal: J Bacteriol Date: 1998-10 Impact factor: 3.490

3. Integration host factor and cyclic AMP receptor protein are required for TyrR-mediated activation of tpl in Citrobacter freundii.

Authors: Q Bai; R L Somerville
Journal: J Bacteriol Date: 1998-12 Impact factor: 3.490

Regulation of aromatic amino acid transport systems in Escherichia coli K-12.

1. Role of leucyl-tRNA synthetase in regulation of branched-chain amino-acid transport.

2. STUDIES ON TRYPTOPHAN PERMEASE IN ESCHERICHIA COLI.

3. [The biosynthesis of beta-galactosidase (lactase) in Escherichia coli; the specificity of induction].

Review 4. Recalibrated linkage map of Escherichia coli K-12.

5. Maintenance and exchange of the aromatic amino acid pool in Escherichia coli.

6. Regulation of branched-chain amino acid transport in Escherichia coli.

7. Phenylalanine and tyrosine biosynthesis in Escherichia coli K-12: mutants derepressed for 3-deoxy-D-arabinoheptulosonic acid 7-phosphate synthetase (phe), 3-deoxy-D-arabinoheptulosonic acid 7-phosphate synthetase (tyr), chorismate mutase T-prephenate dehydrogenase, and transaminase A.

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

9. Transport systems for alanine, serine, and glycine in Escherichia coli K-12.

10. Regulator gene controlling enzymes concerned in tyrosine biosynthesis in Escherichia coli.

1. A study of AroP-PheP chimeric proteins and identification of a residue involved in tryptophan transport.

2. Demonstration that the TyrR protein and RNA polymerase complex formed at the divergent P3 promoter inhibits binding of RNA polymerase to the major promoter, P1, of the aroP gene of Escherichia coli.

3. Integration host factor and cyclic AMP receptor protein are required for TyrR-mediated activation of tpl in Citrobacter freundii.

4. DNA sequence of the gene (tyrP) encoding the tyrosine-specific transport system of Escherichia coli.

5. Genetic and molecular analysis of aroL, the gene for shikimate kinase II in Escherichia coli K-12.

6. Cloning of the aroP gene and identification of its product in Escherichia coli K-12.

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

8. 1-Methylguanosine deficiency of tRNA influences cognate codon interaction and metabolism in Salmonella typhimurium.

9. Autoregulation of the tyrR gene.

10. Molecular analysis of the TyrR protein-mediated activation of mtr gene expression in Escherichia coli K-12.