Results 21 to 30 of about 16,282 (199)

Artificial citrate operon confers mineral phosphate solubilization ability to diverse fluorescent pseudomonads. [PDF]

PLoS ONE, 2014
Citric acid is a strong acid with good cation chelating ability and can be very efficient in solubilizing mineral phosphates. Only a few phosphate solubilizing bacteria and fungi are known to secrete citric acids. In this work, we incorporated artificial
Hemanta Adhikary, Paulomi B Sanghavi, Silviya R Macwan, Gattupalli Archana, G Naresh Kumar   +4 more
doaj   +1 more source

Allosteric regulation of substrate channeling: Salmonella typhimurium tryptophan synthase

Frontiers in Molecular Biosciences, 2022
The regulation of the synthesis of L-tryptophan (L-Trp) in enteric bacteria begins at the level of gene expression where the cellular concentration of L-Trp tightly controls expression of the five enzymes of the Trp operon responsible for the synthesis ...
Rittik K. Ghosh, Eduardo Hilario, Chia-en A. Chang, Leonard J. Mueller, Michael F. Dunn   +4 more
doaj   +1 more source

TnA-directed Deletion of the trp Operon from RSF2124-trp in Escherichia coli [PDF]

Microbiology, 1981
Plasmid pMT-trp was constructed by digestion of RSF2124-trp with restriction endonuclease PstI and ligation with T4 ligase. In pMT-trp about 78% of the DNA of transposon TnA from RSF2124-trp was deleted, and hence the gene for ampicillin resistance was lost.
Hiroshi Tsunekawa, Masako Tateishi, Tsuneo Imanaka, Setsuya Aiba   +3 more
openalex   +4 more sources

Comprehensive Genomic Characterization of Staphylococcus aureus Isolated from Atopic Dermatitis Patients in Japan: Correlations with Disease Severity, Eruption Type, and Anatomical Site

Microbiology Spectrum, 2023
Atopic dermatitis (AD) shows frequent recurrence. Staphylococcus aureus is the primary microbial component in AD and is associated with disease activity.
Shoko Obata, Junzo Hisatsune, Hiroshi Kawasaki, Ayano Fukushima-Nomura, Tamotsu Ebihara, Chika Arai, Kanako Masuda, Shoko Kutsuno, Yasuhisa Iwao, Motoyuki Sugai, Masayuki Amagai, Keiji Tanese   +11 more
doaj   +1 more source

The iron-dependent repressor YtgR is a tryptophan-dependent attenuator of the trpRBA operon in Chlamydia trachomatis

Nature Communications, 2020
Chlamydia trachomatis does not possess TrpL-mediated transcription attenuation of its trp operon. Here, the authors show that an iron-dependent regulator, YtgR, acts as a tryptophan-dependent attenuator of the trp operon in this organism, due to ...
Nick D. Pokorzynski, Nathan D. Hatch, Scot P. Ouellette, Rey A. Carabeo   +3 more
doaj   +1 more source

Ribosome release modulates basal level expression of the trp operon of Escherichia coli.

Journal of Biological Chemistry, 1988
The leader peptide stop codon (UGA) of the Escherichia coli trp operon was replaced by UAA and UAG. The transcriptional behavior of the mutated leader regions in vitro and the extent of transcription termination observed with each in vivo were virtually identical to that of the wild type leader region.
James R. Roesser, Charles Yanofsky
openalex   +4 more sources

The sequence of the trp operon of Bacillus subtilis 168 (trpC2) revisited

Microbiology, 1999
The origin of the 168 strain of Bacillus subtilis based on the comparison of its trp operon sequnce with that of other WT ...
Alessandra M. Albertini, Alessandro Galizzi   +1 more
openalex   +4 more sources

Multiple Transcriptional Control of the Lactococcus lactis trp Operon [PDF]

Journal of Bacteriology, 1998
ABSTRACT The Lactococcus lactis trpEGDCFBA operon is preceded by a noncoding leader region. Transcriptional studies of the trp operon revealed three transcripts with respective sizes of 8 kb (encompassing the entire operon), 290 bases, and 160 bases (corresponding to parts of the ...
Raul Raya, Jacek Bardowski, Paal Skytt Andersen, S. Dusko Ehrlich, Alain Chopin   +4 more
openalex   +5 more sources

cis-acting sites in the transcript of the Bacillus subtilis trp operon regulate expression of the operon [PDF]

Journal of Bacteriology, 1988
Transcription of the trp operon of Bacillus subtilis is regulated by attenuation. A trpE'-'lacZ gene fusion preceded by the wild-type trp promoter-leader region was used to analyze regulation. Overproduction of the trp leader transcript in trans from a multicopy plasmid caused constitutive expression of the chromosomal trpE'-'lacZ fusion, presumably by
D J Henner, C Yanofsky, Mitzi I. Kuroda
openaire   +3 more sources

Effect of dnaA and rpoB mutations on attenuation in the trp operon of Escherichia coli [PDF]

Journal of Bacteriology, 1983
The rate of synthesis of tryptophan synthetase was found to be increased by heat inactivation of the dnaA protein in three dnaA mutants temperature sensitive for initiation of DNA replication. The effect of the dnaA mutations was dependent upon the presence of an intact attenuator in the tryptophan operon.
Tove Atlung, Flemming Hansen
openalex   +4 more sources