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Welcome to the Pubget Medical Subject Headings (MESH) browser. Click on a topic or subtopic below to explore related papers. In the gold box is the most recent paper about the current MESH term, and below are 20 related papers.
Gene Expression Regulation, Bacterial (0):
Recent article
Gene Expression Regulation, Bacterial
Abstract
We report the current knowledge about the sRNAs of these socioeconomically relevant Gram-positive pathogens, overview the state-of-the-art high-throughput sRNA screening methods and summarize bioinformatics approaches for genome-wide sRNA identification and target prediction. Finally, we discuss the...
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PMID: 21255362
PDF is available here.
PDF is available here.
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EMBO Journal (29)21 2010
Abstract
We provide evidence that CtsR activity during heat stress is mediated by intrinsic heat sensing through a glycine-rich loop, probably in all Gram-positive species. Moreover, a function for the recently identified arginine kinase McsB is confirmed, however, not for initial inactivation and dissociati...
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PMID: 20852588
PDF is available here.
PDF is available here.
Abstract
Lipopeptides constitute a structurally diverse group of metabolites produced by various bacterial and fungal genera. In the past decades, research on lipopeptides has been fueled by their antimicrobial, antitumour, immunosuppressant and surfactant activities. However, the natural functions of lipope...
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PMID: 20412310
PDF is available here.
PDF is available here.
Abstract
We focus particularly on the various signaling pathways that control the activity of the enzymes of glycogen storage. We also discuss our recent understanding of the important role played by the vacuole in glycogen metabolism. In the case of bacterial glycogen, special emphasis is placed on aspects...
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PMID: 20412306
PDF is available here.
PDF is available here.
Abstract
We have identified in C. thermocellum a set of putative σ and anti-σ factors that include extracellular polysaccharide-sensing components [Kahel-Raifer et al. (2010) FEMS Microbiol Lett 308:84-93]. These factor-encoding genes are homologous to the Bacillus subtilis bicistronic operon sigI-rsgI, wh...
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PMID: 20937888
PDF is available here.
PDF is available here.
Abstract
Streptococcus mutans and Streptococcus sobrinus are considered the primary organisms responsible for human dental caries. The ability to generate acids and to adapt to low pH conditions is directly associated with the cariogenic potential of these bacteria. To survive acidic conditions, both species...
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PMID: 20883222
PDF is available here.
PDF is available here.
Abstract
We generated the deletion mutant for the DR_B0100 ORF. The mutant exhibited a nearly 2-log cycle reduction in growth rate when exposed to a 10,000 Gray dose of γ-radiation, and a significant loss in mitomycin C and methylmethane sulphonate tolerance as compared with wild type. Functional complement...
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PMID: 20921990
PDF is available here.
PDF is available here.
Abstract
We used random arbitrarily primed polymerase chain reaction (RAP-PCR) to screen and identify differentially expressed genes from bacteria grown on Fe(2+) or S(0) as the energy source. Fifty-five differential cDNA fragments were isolated and subjected to single-pass sequencing. Thirty-five fragments...
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PMID: 21099135
PDF is available here.
PDF is available here.
Abstract
Our study revealed eight inducible proteins (DnaK, fabG4, DNA-binding, hypothetical, two 14 kDa antigen and two 10 kDa chaperonin) that were upregulated in the presence of drug.
This preliminary study has thrown light on whether or not and how the resistant isolate responds to streptomycin at its no...
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PMID: 20966518
PDF is available here.
PDF is available here.
Abstract
Staphylococcus aureus is an important food poisoning bacterium. In food preservation, acidification is a well-known method. Permeant weak organic acids, like lactic and acetic acids, are known to be more effective against bacteria than inorganic strong acids (e.g., HCl). Growth experiments and metab...
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PMID: 20921988
PDF is available here.
PDF is available here.
Food Microbiology (27)6 2010
Abstract
We monitored changes in the virulence properties of one high virulent (CCUG 3998) and one low virulent (442) L. monocytogenes strains grown on raw salmon (Salmo salar L.). The effect of temperature exposures (0 degrees C, 4 degrees C and 20 degrees C) on the expression levels of virulence genes (hly...
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PMID: 20630322
PDF is available here.
PDF is available here.
Abstract
Genes uniquely expressed in vivo may contribute to the overall pathogenicity of an organism and are likely to serve as potential targets for the development of new vaccine. This study aims to screen the genes expressed in vivo after Vibrio anguillarum infection by in vivo-induced antigen technology...
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PMID: 20849396
PDF is available here.
PDF is available here.
Abstract
The Phi CTX-based integration vector pYM101 harboring a tightly controlled modified phage T7 early gene promoter/LacI(q) repressor (T7/LacI) system was constructed for the generation of unmarked conditional mutants in Pseudomonas aeruginosa. Promoter activity of the T7/LacI system was demonstrated t...
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PMID: 20538017
PDF is available here.
PDF is available here.
Journal of Antibiotics (63)9 2010
Abstract
We hypothesized that the BIVR phenomenon might be exerted by a peptidoglycan derivative(s) generated as a consequence of β-lactam antibiotic action. To verify this hypothesis, we isolated the fraction that mimicked the effect of β-lactam antibiotics by the enzymatic treatment of the crude cell wal...
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PMID: 20588304
PDF is available here.
PDF is available here.
Abstract
We describe the transcriptional programs mediated by isoniazid (INH) during the transition from log-phase to nonreplicating bacilli, from INH-sensitive to INH-tolerant bacilli respectively, using the Wayne model.
INH treatment did not elicit a transcriptional response from nonreplica...
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PMID: 21426023
PDF is available here.
PDF is available here.
Infection and Immunity (78)8 2010
Abstract
We reveal the role of LuxS in the regulation of capsular polysaccharide synthesis in S. aureus NCTC8325 and show that AI-2 can regulate gene expression and is involved in some physiological activities in S. aureus as a signaling molecule. Inactivation of luxS in S. aureus NCTC8325 resulted in higher...
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PMID: 20498265
PDF is available here.
PDF is available here.
FEMS Microbiology Letters (309)1 2010
Abstract
We performed random mutagenesis using mini-Tn5 in order to screen for the transcriptional regulators of the phlA gene, a biosynthase gene responsible for 2,4-DAPG production. The mutant PMphlA23 with significantly decreased phlA gene expression was identified from approximately 10,000 insertion colo...
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PMID: 20528945
PDF is available here.
PDF is available here.
Molecular Cell (39)2 2010
Abstract
We report an interaction between poxA, encoding a paralog of lysyl tRNA-synthetase, and the closely linked yjeK gene, encoding a putative 2,3-beta-lysine aminomutase, that is critical for virulence and stress resistance in Salmonella enterica. Salmonella poxA and yjeK mutants share extensive phenoty...
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PMID: 20670890
PDF is available here.
PDF is available here.
Abstract
We investigated the transcription of nodC, nodG, and glgX genes, located in the nod operon of PRF 81 strain, by reverse-transcription quantitative PCR. All three genes showed low levels of transcription when the cells were grown until exponential growth phase in the presence of common-bean-seed exud...
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PMID: 20013017
PDF is available here.
PDF is available here.
Abstract
We have been able to reconstruct a series of molecular envelopes of the stressosome. These maps have been interpreted at near-atomic resolution with crystal structures of the individual components of the stressosome to provide the first visualization of this unique signalling hub. The macromolecular...
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PMID: 20658979
PDF is available here.
PDF is available here.
Marine Biotechnology (12)4 2010
Abstract
We identified a novel esterase that belongs to the SGNH hydrolase superfamily of esterases. The substrate specificity of EstHE1 was determined using p-nitrophenyl (pNP) ester (C2: acetate, C4: butylate, C6: caproate, C12: laurate, C16: palmitate). EstHE1 exhibited activity against C2 (5.6 U/mg), C4...
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PMID: 19789923
PDF is available here.
PDF is available here.
Journal of Bacteriology (192)15 2010
Abstract
We used site-directed mutagenesis to study the importance of different regions of the E. coli ClyA protein for export and activity. The data indicate that ClyA translocation to the periplasm requires several protein segments located closely adjacent to each other in the "tail" domain of the ClyA mon...
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PMID: 20511497
PDF is available here.
PDF is available here.
Journal of Bacteriology (192)15 2010
Abstract
We have previously shown that for the Serratia marcescens hemophore HasA, interactions with the ABC protein and subsequent T1SS assembly require additional regions. In this work, we characterize these regions and demonstrate that they are numerous, distributed throughout the HasA polypeptide, and mo...
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PMID: 20418390
PDF is available here.
PDF is available here.
Journal of Bacteriology (192)15 2010
Abstract
We showed that the putative pneumococcal carbonic anhydrase (PCA) is essential for in vitro growth of S. pneumoniae under the CO(2)-poor conditions found in environmental ambient air. Enzymatic analysis showed that PCA catalyzes the reversible hydration of CO(2) to bicarbonate (HCO(3)(-)), an essent...
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PMID: 20525828
PDF is available here.
PDF is available here.
Journal of Bacteriology (192)15 2010
Abstract
We identified a new spore protein, ExsM, from a beta-mercaptoethanol extract of B. cereus ATCC 4342 spores. Subcellular localization of an ExsM-green fluorescent protein (GFP) protein revealed a dynamic pattern of fluorescence that follows the site of formation of the exosporium around the forespore...
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PMID: 20543075
PDF is available here.
PDF is available here.