Results 41 to 50 of about 1,300,884 (312)

A Primary Physiological Role of Toxin/Antitoxin Systems Is Phage Inhibition

Frontiers in Microbiology, 2020
Toxin/antitoxin (TA) systems are present in most prokaryote genomes. Toxins are almost exclusively proteins that reduce metabolism (but do not cause cell death), and antitoxins are either RNA or proteins that counteract the toxin or the RNA that encodes ...
Sooyeon Song, Thomas K. Wood
doaj   +1 more source

First Report of a Methicillin-Resistant, High-Level Mupirocin-Resistant Staphylococcus argenteus

Frontiers in Cellular and Infection Microbiology, 2022
We describe the identification of a methicillin-resistant, high-level mupirocin-resistant Staphylococcus argenteus. The isolate (1801221) was characterized as t6675-ST2250-SCCmecIVc, and whole-genome sequencing revealed that the isolate possessed two ...
Adebayo Osagie Shittu, Adebayo Osagie Shittu, Franziska Layer-Nicolaou, Birgit Strommenger, Minh-Thu Nguyen, Stefan Bletz, Alexander Mellmann, Frieder Schaumburg   +7 more
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

Genetic and biochemical analyses of chromosome and plasmid gene homologues encoding ICL and ArCP domains in Vibrioanguillarum strain 775 [PDF]

, 2011
Anguibactin, the siderophore produced by Vibrio anguillarum 775 is synthesized from 2,3-dihydroxybenzoic acid (DHBA), cysteine and hydroxyhistamine via a nonribosomal peptide synthetase (NRPS) mechanism.
AF Alice, AM Gehring, B Schwyn, C Notredame, CG Marshall, DH Figurski, EJ Drake, EL Arnow, F Bolivar, F Rusnak, H Naka, HW Boyer, J Frey, J Sambrook, JF Parsons, JF Staab, JH Crosa, JH Crosa, Jorge H. Crosa, JR Lai, JR Pollack, KA Datsenko, LA Actis, LA Actis, LE Quadri, M Balado, M Di Lorenzo, M Di Lorenzo, M Di Lorenzo, M Hahn, M Jalal, M Stork, MA Walter, Manuela Di Lorenzo, ME Tolmasky, ME Tolmasky, Michiel Stork, MK Wolf, PA Bates, Q Chen, RF Conchas, SF Altschul, TA Keating, TJ Welch   +43 more
core   +2 more sources

Intramuscular DNA vaccine provides protection in non-human primate and mouse models of SARS-CoV-2

Frontiers in Immunology
Nucleic acid vaccine approaches have proven successful in the context of the SARS-CoV-2 pandemic, however challenges with delivery remain. Here we describe PlaCCine, a DNA-based vaccine platform that utilizes a device- and vector-free chemical delivery ...
Subeena Sood, Ebony N. Gary, Majed Matar, Jessica Kim, Casey E. Hojecki, Bryce Warner, Robert Vendramelli, Thang Truong, Alanna Smith, Jennifer Rice, Jeff Sparks, Michael DeSalvo, John Henderson, Joseph A. Rogers, Ankur Sharma, Laurent Pessaint, Carlo A. Iavarone, Darwyn Kobasa, Jean D. Boyer, Stacy Lindborg, Khursheed Anwer   +20 more
doaj   +1 more source

Plasmodium falciparum gametogenesis essential protein 1 (GEP1) is a transmission‐blocking target

FEBS Letters, EarlyView.
This study shows Plasmodium falciparum GEP1 is vital for activating sexual stages of malarial parasites even independently of a mosquito factor. Knockout parasites completely fail gamete formation even when a phosphodiesterase inhibitor is added. Two single‐nucleotide polymorphisms (V241L and S263P) are found in 12%–20% of field samples.
Frederik Huppertz, Milagros Siebeck Caturelli, Lina S. Lehmann, Florian Kurth, Alexander G. Maier, Kai Matuschewski   +5 more
wiley   +1 more source

Plasmid-Encoded Multidrug Resistance of Salmonella typhi and some Enteric Bacteria in and around Kolkata, India: A Preliminary Study [PDF]

, 2005
The present study investigates the occurrence of R-plasmid in Salmonella typhi isolates from enteric fever cases in and around Kolkata (1991-2001), India following in vitro conjugation experiments, isolation of plasmid DNAs and agarose gel ...
Mandal, Mr. Shyamapada, Mandal, Ms. Manisha Deb, Pal, Dr. Nishith Kumar   +2 more
core  

Insights into a Novel blaKPC-2-Encoding IncP-6 Plasmid Reveal Carbapenem-Resistance Circulation in Several Enterobacteriaceae Species from Wastewater and a Hospital Source in Spain [PDF]

, 2017
Untreated wastewater, particularly from hospitals and other healthcare facilities, is considered to be a reservoir for multidrug-resistant bacteria.
Cantón, Rafael, Chakraborty, Trinad, Dominguez, Lucas, Falgenhauer, Linda, Imirzalioglu, Can, Lazaro-Perona, Fernando, Mingorance, Jesús, Valverde, Aránzazu, Yao, Yancheng   +8 more
core   +1 more source

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

FEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer, Matheus Felipe Santos, Maurício Mazzine Filho, Gabriela Oliveira Castro, Agustín Hernández, Manoel Aparecido Peres, Alejandro Miguel Katzin, Marcell Crispim   +7 more
wiley   +1 more source

A second large plasmid encodes conjugative transfer and antimicrobial resistance in O119:H2 and some typical O111 enteropathogenic \u3ci\u3eEscherichia coli\u3c/i\u3e strains [PDF]

, 2007
A novel and functional conjugative transfer system identified in O119:H2 enteropathogenic Escherichia coli (EPEC) strain MB80 by subtractive hybridization is encoded on a large multidrug resistance plasmid, distinct from the well-described EPEC adherence
Mucci, Tania, Nwaneshiudu, Adaobi I., Okeke, Iruka N., Pickard, Derek J.   +3 more
core   +1 more source