Results 21 to 30 of about 116,936 (212)

The role of the Staphylococcal VraTSR regulatory system on vancomycin resistance and vanA operon expression in vancomycin-resistant Staphylococcus aureus. [PDF]

PLoS ONE, 2014
Vancomycin is often the preferred treatment for invasive methicillin-resistant Staphylococcus aureus (MRSA) infection. With the increase in incidence of MRSA infections, the use of vancomycin has increased and, as feared, isolates of vancomycin-resistant
Nadia K Qureshi, Shaohui Yin, Susan Boyle-Vavra   +2 more
doaj   +1 more source

Gene Expression Analysis of Zobellia galactanivorans during the Degradation of Algal Polysaccharides Reveals both Substrate-Specific and Shared Transcriptome-Wide Responses

Frontiers in Microbiology, 2017
Flavobacteriia are recognized as key players in the marine carbon cycle, due to their ability to efficiently degrade algal polysaccharides both in the open ocean and in coastal regions.
François Thomas, Philippe Bordron, Philippe Bordron, Philippe Bordron, Damien Eveillard, Gurvan Michel   +5 more
doaj   +1 more source

An NMR Study on the clpC Operon Binding Region of Transcription Factor CtsR from Bacillus subtilis

Chinese Journal of Magnetic Resonance, 2021
When Gram-positive bacterium Bacillus subtilis responds to heat-shock, protein arginine kinase McsB phosphorylates Arg62 (R) in the clpC operon binding region of transcription factor CtsR, leading to dissociation of CtsR and clpC operon and initiation of
CHEN Xiao-wen, HUANG Bi-ling, HUANG Shao-hua, ZHAO Yu-fen   +3 more
doaj   +1 more source

Probable Role of Type IV Pili of Aeromonas hydrophila in Human Pathogenicity

Pathogens
Background: Aeromonas hydrophila is a widely recognized broad-spectrum pathogen that primarily targets the gastrointestinal tract. Type IV pili (T4P) are proteinaceous nano-machines located on the bacterial cell surface, playing a crucial role in host ...
Agradip Bhattacharyya, Goutam Banerjee, Pritam Chattopadhyay   +2 more
doaj   +1 more source

Unraveling a Tangled Skein: Evolutionary Analysis of the Bacterial Gibberellin Biosynthetic Operon

mSphere, 2020
Gibberellin (GA) phytohormones are ubiquitous regulators of growth and developmental processes in vascular plants. The convergent evolution of GA production by plant-associated bacteria, including both symbiotic nitrogen-fixing rhizobia and ...
Ryan S. Nett, Huy Nguyen, Raimund Nagel, Ariana Marcassa, Trevor C. Charles, Iddo Friedberg, Reuben J. Peters   +6 more
doaj   +1 more source

The Rhizobium etli trpB Gene Is Essential for an Effective Symbiotic Interaction with Phaseolus vulgaris

Molecular Plant-Microbe Interactions, 1999
A mutant strain (CTNUX4) of Rhizobium etli carrying Tn5 unable to grow with ammonium as the sole nitrogen source was isolated and characterized. Sequence analysis showed that Tn5 is inserted into a trpB (tryptophan synthase)-homologous gene.
Rosarita Taté, Anna Riccio, Emilia Caputo, Michele Cermola, Renee Favre, Eduardo J. Patriarca   +5 more
doaj   +1 more source

Relatively slow stochastic gene-state switching in the presence of positive feedback significantly broadens the region of bimodality through stabilizing the uninduced phenotypic state. [PDF]

PLoS Computational Biology, 2018
Within an isogenic population, even in the same extracellular environment, individual cells can exhibit various phenotypic states. The exact role of stochastic gene-state switching regulating the transition among these phenotypic states in a single cell ...
Hao Ge, Pingping Wu, Hong Qian, Xiaoliang Sunney Xie   +3 more
doaj   +1 more source

In vivo evidence for glycyl radical insertion into a catalytically inactive variant of pyruvate formate‐lyase

FEBS Letters, EarlyView.
Dimeric pyruvate formate‐lyase cleaves pyruvate using a radical‐based mechanism. G734 serves as a radical storage location, and the radical is transferred to the catalytic C419 residue. Mutation of the C418‐C419 pair causes loss of enzyme activity, but does not impede radical introduction onto G734. Therefore, cis‐ but not trans‐radical transfer occurs
Michelle Kammel, A. F. Volker Wagner, R. Gary Sawers   +2 more
wiley   +1 more source

Horizontal gene transfer and diverse functional constrains within a common replication-partitioning system in Alphaproteobacteria: the repABC operon

BMC Genomics, 2009
Background The repABC plasmid family, which is extensively present within Alphaproteobacteria, and some secondary chromosomes of the Rhizobiales have the particular feature that all the elements involved in replication and partitioning reside within one ...
Cevallos Miguel A, González Víctor, Vázquez-Castellanos Jorge F, Castillo-Ramírez Santiago   +3 more
doaj   +1 more source

Mutations in SilS and CusS/OmpC represent different routes to achieve high level silver ion tolerance in Klebsiella pneumoniae

BMC Microbiology, 2022
Background Silver ions have potent broad-spectrum antimicrobial activity and are widely incorporated into a variety of products to limit bacterial growth.
Charlotte A. Woolley, J. Mark Sutton, Matthew E. Wand   +2 more
doaj   +1 more source