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Escherichia coli - Genetics
Research News and Information
Definition of 'Escherichia coli'A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc. |
Monday, November 23, 2009
21 Oct 2009 
Using the Keio collection of gene-disrupted mutants of Escherichia coli, we have recently carried out a genome-wide screening of the genes affecting glycogen metabolism. Among the mutants identified in the study, Delta mgtA, Delta phoP and Delta ... Read more...
An oxygen-sensing diguanylate cyclase and phosphodiesterase couple for c-di-GMP control.
18 Oct 2009 A commonly observed coupling of sensory domains to GGDEF-class diguanylate cyclases and EAL-class phosphodiesterases has long suggested that c-di-GMP synthesizing and degrading enzymes sense environmental signals. Nevertheless, relatively few signal ... Read more...
Reduced capacity of alternative sigmas to melt promoters ensures stringent promoter recognition.
13 Oct 2009 In bacteria, multiple sigmas direct RNA polymerase to distinct sets of promoters. Housekeeping sigmas direct transcription from thousands of promoters, whereas most alternative sigmas are more selective, recognizing more highly conserved promoter ... Read more...
Latest indexed articles for 'Escherichia coli - Genetics'
These are the very latest articles for this heading:
- Escherichia coli glycogen metabolism is controlled by the PhoP-PhoQ regulatory system at submillimolar environmental Mg2+ concentrations, and is highly interconnected with a wide variety of cellular processes. 21 Oct 2009
- An oxygen-sensing diguanylate cyclase and phosphodiesterase couple for c-di-GMP control. 18 Oct 2009
- Reduced capacity of alternative sigmas to melt promoters ensures stringent promoter recognition. 13 Oct 2009
- Plasmid DNA production combining antibiotic-free selection, inducible high yield fermentation, and novel autolytic purification. 13 Oct 2009
- Crystal structures of penicillin-binding protein 6 from Escherichia coli. 12 Oct 2009
- Genetically encoding N(epsilon)-methyl-L-lysine in recombinant histones. 12 Oct 2009
- The outermost N-terminal region of tapasin facilitates folding of major histocompatibility complex class I. 29 Sep 2009
- Combination of IMP-4 metallo-beta-lactamase production and porin deficiency causes carbapenem resistance in a Klebsiella oxytoca clinical isolate. 29 Sep 2009
- Biofilm formation as a novel phenotypic feature of adherent-invasive Escherichia coli (AIEC). 19 Sep 2009
- The response regulator SprE (RssB) modulates polyadenylation and mRNA stability in Escherichia coli. 16 Sep 2009
- Tryptophan inhibits Proteus vulgaris TnaC leader peptide elongation, activating tna operon expression. 16 Sep 2009
- Synthesis of functional signaling domains by combinatorial polymerization of phosphorylation motifs. 16 Sep 2009
- Reconstitution and engineering of apoptotic protein interactions on the bacterial cell surface. 15 Sep 2009
- Systematic phenome analysis of Escherichia coli multiple-knockout mutants reveals hidden reactions in central carbon metabolism. 13 Sep 2009
- Novel minicircle vector for gene therapy in murine myocardial infarction. 13 Sep 2009
- Interactions between large and small subunits of different acetohydroxyacid synthase isozymes of Escherichia coli. 13 Sep 2009
- Structural basis for autoregulation of the zinc transporter YiiP. 11 Sep 2009
- Identification of functional LsrB-like autoinducer-2 receptors. 9 Sep 2009
- Depletion of the signal recognition particle receptor inactivates ribosomes in Escherichia coli. 9 Sep 2009
- YjhS (NanS) is required for Escherichia coli to grow on 9-O-acetylated N-acetylneuraminic acid. 9 Sep 2009
See a longer list of these articles.
Technical information about 'Escherichia coli'
Definition: A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc.
Descriptor UI: D004926
Alternative terms: Escherichia coli; E coli; Diffusely Adherent Escherichia coli; Diffusely Adherent E. coli; Enteroinvasive Escherichia coli; Enteroinvasive E. coli; Alkalescens-Dispar Group; Enteroaggregative Escherichia coli; Enteroaggregative E. coli; EAggEC;
Related Mesh Headings: Escherichia coli Proteins;
Allowable Qualifiers: classification; cytology; drug effects; enzymology; genetics; growth & development; immunology; isolation & purification; metabolism; pathogenicity; physiology; radiation effects; ultrastructure; chemistry; virology;
Tree Number: B03.440.450.425.325.300; B03.660.250.150.180.100;
Online Note: use SHIGELLA to search ALKALESCENS-DISPAR GROUP 1974; use ENTEROBACTERIACEAE 1966-73
History Note: ALKALESCENS-DISPAR GROUP was heading 1975-96 (see under ESCHERICHIA 1975-90); was see under SHIGELLA 1974; was see under ENTEROBACTERIACEAE 1963-73 (Prov 1963-67)
Technical Notes: not for "coliform bacillus" ( = COLIFORM BACILLI see ENTEROBACTERIACEAE); note specific strains; infection = ESCHERICHIA COLI INFECTIONS