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Beta-glucoside (bgl) operon of Escherichia coli K-12: nucleotide sequence, genetic organization, and possible evolutionary relationship to regulatory components of two Bacillus subtilis genes
Homologies to sequences preceding the gene for an excreted levansucrase of Bacillus subtilis, which are known to be involved in the regulation of this gene, and to sequences prior to that of B. subtILis suggest a close evolutionary relationship among the regulatory components of all three systems. Expand
High-level ribosomal frameshifting directs the synthesis of IS150 gene products.
- K. Vögele, E. Schwartz, C. Welz, E. Schiltz, B. Rak
- Biology, Medicine
- Nucleic acids research
- 25 August 1991
IS150 contains two tandem, out-of-phase, overlapping genes, ins150A and ins150B, which are controlled by the same promoter. These genes encode proteins of 19 and 31 kD, respectively. A third protein… Expand
Catabolite control of Escherichia coli regulatory protein BglG activity by antagonistically acting phosphorylations
Evidence is presented that in addition BglG must be phosphorylated by HPr at a distinct site to gain activity in the phosphoenolpyruvate:sugar phosphotransferase system, which may represent a highly integrated signal transduction network in carbon catabolite control. Expand
Feedback control of glucosamine‐6‐phosphate synthase GlmS expression depends on the small RNA GlmZ and involves the novel protein YhbJ in Escherichia coli
- Falk Kalamorz, Birte Reichenbach, W. März, B. Rak, B. Görke
- Biology, Medicine
- Molecular microbiology
- 1 September 2007
It is reported here that expression of the Escherichia coli glmS gene is negatively feedback regulated by its product GlcN‐6‐P at the post‐transcriptional level. Expand
Regulation of the bgl operon of Escherichia coli by transcriptional antitermination.
This report shows that integration of IS5 into the vicinity of the bgl promoter (P0) enhances its activity by greater than 60‐fold thereby activating the operon and shows that substrate‐dependent regulation involves specific termination/antitermination of transcription at two signal structures flanking the first gene of the Operon, bglG. Expand
LicT, a Bacillus subtilis transcriptional antiterminator protein of the BglG family
Disruption of gene licT leads not only to loss of inducibility of licS but also to Loss of growth on lichenan or on its degradation products, indicating its stringent role in beta-glucan utilization. Expand
IS5: a mobile enhancer of transcription in Escherichia coli.
Introduction of internal deletions into IS5 almost completely abolished P0 enhancement, demonstrating that enhancement is not simply the result of mutational inactivation of some inhibitory sequences. Expand
IS150: distribution, nucleotide sequence and phylogenetic relationships of a new E. coli insertion element.
Comparison of nucleotide and deduced amino acid sequences of IS150, IS2, IS3, IS51, IS600 and IS629 reveals significant homologies suggesting that these elements are members of a family of phylogenetically related insertion sequences. Expand
Escherichia coli Insertion Sequence IS150: Transposition via Circular and Linear Intermediates
It is demonstrated that the InsAB protein represents the IS150 element's transposase, indicating that the primary role of InsA may be to prevent abortive production of the linear species and to couple generation of these species to productive insertion events. Expand
Sugar permeases of the bacterial phosphoenolpyruvate‐dependent phosphotransferase system: sequence comparisons
- M. Saier, M. Yamada, +12 authors R. Doolittle
- Biology, Medicine
- FASEB journal : official publication of the…
- 1 March 1988
More extensive intragenic rearrangements may have given rise to entirely different positions of phosphorylation in the glucitol, mannose, and lactose systems. Expand