Journal of Bacteriology
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#1Jeremy D. Amon (Harvard University)H-Index: 1
#2Lior Artzi (Harvard University)H-Index: 7
Last. David Z. Rudner (Harvard University)H-Index: 51
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Bacterial spores can rapidly exit dormancy through the process of germination. This process begins with the activation of nutrient receptors embedded in the spore membrane. The prototypical germinant receptor in Bacillus subtilis responds to L-alanine and is thought to be a complex of proteins encoded by the genes in the gerA operon: gerAA, gerAB, and gerAC. The GerAB subunit has recently been shown to function as the nutrient sensor, but beyond contributing to complex stability, no additional f...
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#1Marie-Madlen Pust (MHH: Hannover Medical School)H-Index: 1
#2Colin F. Davenport (MHH: Hannover Medical School)H-Index: 15
Last. Burkhard Tümmler (MHH: Hannover Medical School)H-Index: 81
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The transcriptomes of Pseudomonas aeruginosa clone C isolates NN2 and SG17M during the mid-exponential and early stationary phase of planktonic growth were evaluated by direct RNA sequencing on the nanopore platform and compared with established short-read cDNA sequencing on the Illumina platform. Fifty to ninety percent of the sense RNAs turned out to be rRNA molecules followed by similar proportions of mRNA transcripts and non-coding RNAs. Both platforms detected similar proportions of uncharg...
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#1Cynthia A. Hale (CWRU: Case Western Reserve University)H-Index: 11
#2Logan Persons (CWRU: Case Western Reserve University)H-Index: 4
Last. Piet A. J. de Boer (CWRU: Case Western Reserve University)H-Index: 28
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The Tol-Pal system of Gram-negative bacteria helps maintain integrity of the cell envelope and ensures that invagination of the envelope layers during cell fission occurs in a well-coordinated manner. In E. coli, the five Tol-Pal proteins (TolQ, R, A, B and Pal) accumulate at cell constriction sites in a manner that normally requires the activity of the cell constriction initiation protein FtsN. While septal recruitment of TolR, TolB and Pal also requires the presence of TolQ and/or TolA, each o...
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#1Christian H. Ahrens (SIB: Swiss Institute of Bioinformatics)H-Index: 34
#2Joseph T. Wade (NYSDOH: New York State Department of Health)H-Index: 32
Last. Julian D. Langer (MPG: Max Planck Society)H-Index: 25
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Small proteins of up to ∼50 amino acids are an abundant class of biomolecules across all domains of life. Yet, due to the challenges inherent in their size, they are often missed in genome annotations, and are difficult to identify and characterize using standard experimental approaches. Consequently, we still know few small proteins even in well-studied prokaryotic model organisms. Mass spectrometry (MS) has great potential for the discovery, validation, and functional characterization of small...
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#1Zhexian Liu (UBC: University of British Columbia)H-Index: 3
#2Sarzana S. Hossain (UBC: University of British Columbia)H-Index: 2
Last. Cara H. Haney (UBC: University of British Columbia)H-Index: 12
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Pseudomonas aeruginosa, an opportunistic bacterial pathogen can synthesize and catabolize a number of small cationic molecules known as polyamines. In several clades of bacteria polyamines regulate biofilm formation, a lifestyle-switching process that confers resistance to environmental stress. The polyamine putrescine and its biosynthetic precursors, L-arginine and agmatine, promote biofilm formation in Pseudomonas spp. However, it remains unclear whether the effect is a direct effect of polyam...
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#1Cristina Landeta (IU: Indiana University)H-Index: 7
#2Adrian Mejia-Santana (IU: Indiana University)
Antimicrobial resistance is one of the greatest global health challenges today. For over three decades antibacterial discovery research and development has been focused on cell-based and target-based high throughput assays. Target-based screens use diagnostic enzymatic reactions to look for molecules that can bind directly and inhibit the target. Target-based screens are only applied to proteins that can be successfully expressed, purified and the activity of which can be effectively measured us...
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#1Yuki Yamanaka (Hosei University)H-Index: 5
#2Shin-Ichi Aizawa (Prefectural University of Hiroshima)H-Index: 25
Last. Kaneyoshi Yamamoto (Hosei University)H-Index: 33
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Escherichia coli survives under acid stress conditions by the glutamic acid-dependent acid resistance (GAD) system, which enzymatically decreases intracellular protons. We found a linkage between GAD and flagellar systems in E. coli. The hdeD gene, one of the GAD cluster genes, encodes an uncharacterized membrane protein. A reporter assay showed that the hdeD promoter was induced in a GadE-dependent manner when grown in the M9 glycerol medium. Transcriptome analysis revealed that most of the tra...
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#1Fabrizio Damiano (University of Salento)H-Index: 22
#2Matteo Calcagnile (University of Salento)H-Index: 5
Last. Pietro Alifano (University of Salento)H-Index: 29
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The YjgF/YER057c/UK114 (Rid) is a protein family breadth conserved in all domains of life and includes the widely distributed archetypal RidA (YjgF) subfamily and seven other subfamilies (Rid1 to Rid7). Among these subfamilies, RidA is the only family to have been biochemically well characterized and is involved in the deamination of the reactive enamine/imine intermediates. In this study, we have characterized a protein of the Rid7 subfamily, named Rid7C, in Nonomuraea gerenzanensis, an actinom...
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#1Stefan Katharios-Lanwermeyer (Dartmouth College)H-Index: 1
#2Sophia Koval (Dartmouth College)
Last. George A. O'Toole (Dartmouth College)H-Index: 47
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Pseudomonas aeruginosa forms surface-attached communities that persist in the face of antimicrobial agents and environmental perturbation. Published work has found extracellular polysaccharide (EPS) production, regulation of motility and induction of stress response pathways as contributing to biofilm tolerance during such insults. However, little is known regarding the mechanism(s) whereby biofilm maintenance is regulated when exposed to such environmental challenges. Here, we provide evidence ...
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