Abstract
L-Tryptophan uptake was assayed under conditions in which the aroT gene had been inactivated by deletion and the product of the aroP permease was competitively inhibition. A mutant carrying a deletion from bgl through tnaA showed negligible L-tryptophan uptake, in contrast to a strain possessing an intact tna region or to strains carrying point mutations in tna. The ability to take up L-tryptophan was not restored by lysogenizing the tna-deleted strain with lambda tna+.
Full text
PDFSelected References
These references are in PubMed. This may not be the complete list of references from this article.
- BURROUS S. E., DEMOSS R. D. STUDIES ON TRYPTOPHAN PERMEASE IN ESCHERICHIA COLI. Biochim Biophys Acta. 1963 Aug 6;73:623–637. doi: 10.1016/0006-3002(63)90332-9. [DOI] [PubMed] [Google Scholar]
- Bachmann B. J., Low K. B. Linkage map of Escherichia coli K-12, edition 6. Microbiol Rev. 1980 Mar;44(1):1–56. doi: 10.1128/mr.44.1.1-56.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Borck K., Beggs J. D., Brammar W. J., Hopkins A. S., Murray N. E. The construction in vitro of transducing derivatives of phage lambda. Mol Gen Genet. 1976 Jul 23;146(2):199–207. doi: 10.1007/BF00268089. [DOI] [PubMed] [Google Scholar]
- Brown K. D. Formation of aromatic amino acid pools in Escherichia coli K-12. J Bacteriol. 1970 Oct;104(1):177–188. doi: 10.1128/jb.104.1.177-188.1970. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Deeley M. C., Yanofsky C. Nucleotide sequence of the structural gene for tryptophanase of Escherichia coli K-12. J Bacteriol. 1981 Sep;147(3):787–796. doi: 10.1128/jb.147.3.787-796.1981. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kuhn J., Somerville R. L. Mutant strains of Escherichia coli K12 that use D-amino acids. Proc Natl Acad Sci U S A. 1971 Oct;68(10):2484–2487. doi: 10.1073/pnas.68.10.2484. [DOI] [PMC free article] [PubMed] [Google Scholar]
- TAYLOR A. L. BACTERIOPHAGE-INDUCED MUTATION IN ESCHERICHIA COLI. Proc Natl Acad Sci U S A. 1963 Dec;50:1043–1051. doi: 10.1073/pnas.50.6.1043. [DOI] [PMC free article] [PubMed] [Google Scholar]
- VOGEL H. J., BONNER D. M. Acetylornithinase of Escherichia coli: partial purification and some properties. J Biol Chem. 1956 Jan;218(1):97–106. [PubMed] [Google Scholar]
- Whipp M. J., Pittard A. J. Regulation of aromatic amino acid transport systems in Escherichia coli K-12. J Bacteriol. 1977 Nov;132(2):453–461. doi: 10.1128/jb.132.2.453-461.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
- White M. K., Yudkin M. D. Complementation analysis of eleven tryptophanase mutations in Escherichia coli. J Gen Microbiol. 1979 Oct;114(2):471–475. doi: 10.1099/00221287-114-2-471. [DOI] [PubMed] [Google Scholar]
- Yudkin M. D. Mutations in Escherichia coli that relieve catabolite repression of tryptophanase synthesis. Mutations distant from the tryptophanase gene. J Gen Microbiol. 1976 Jan;92(1):125–132. doi: 10.1099/00221287-92-1-125. [DOI] [PubMed] [Google Scholar]