Results 41 to 50 of about 1,085,040 (311)

Genetic Insights on Meropenem Resistance Concerning Klebsiella pneumoniae Clinical Isolates

Life
The transferable genetic elements are associated with the dissemination of virulence determinants amongst Klebsiella pneumoniae. Thus, we assessed the correlated antimicrobial resistance in carbapenem-resistant Klebsiella pneumoniae clinical isolates ...
Fathy M. Elkady, Bahaa M. Badr, Abdel-Aty E. Alfeky, Mohammed S. Abdulrahman, Amr H. Hashem, Abdulaziz A. Al-Askar, Gehad AbdElgayed, Hany R. Hashem   +7 more
doaj   +1 more source

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

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

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

Emergence of plasmid stability under non-selective conditions maintains antibiotic resistance

Nature Communications, 2019
Plasmid acquisition is an important mechanism of rapid adaptation and niche expansion in prokaryotes. Positive selection for plasmid-coded functions is a major driver of plasmid evolution, while plasmids that do not confer a selective advantage are ...
Tanita Wein, Nils F. Hülter, I. Mizrahi, Tal Dagan   +3 more
semanticscholar   +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

Plasmid detection and assembly in genomic and metagenomic data sets

Genome Research, 2019
Although plasmids are important for bacterial survival and adaptation, plasmid detection and assembly from genomic, let alone metagenomic, samples remain challenging.
D. Antipov, Mikhail Raiko, A. Lapidus, P. Pevzner   +3 more
semanticscholar   +1 more source

Linked dimers of the AAA+ ATPase Msp1 reveal energetic demands and mechanistic plasticity for substrate extraction from lipid bilayers

FEBS Letters, EarlyView.
Cells must clear mislocalized or faulty proteins from membranes to survive. The AAA+ ATPase Msp1 performs this task, but dissecting how its six subunits work together is challenging. We engineered linked dimers with varied numbers of functional subunits to reveal how Msp1 subunits cooperate and use energy to extract proteins from the lipid bilayer ...
Deepika Gaur, Brian Acquaviva, Baylee A. Smith, Nathan Walker, Isabella Walter, Matthew L. Wohlever   +5 more
wiley   +1 more source

CCT4 promotes tunneling nanotube formation

FEBS Letters, EarlyView.
Tunneling nanotubes (TNTs) are membranous tunnel‐like structures that transport molecules and organelles between cells. They vary in thickness, and thick nanotubes often contain microtubules in addition to actin fibers. We found that cells expressing monomeric CCT4 generate many thick TNTs with tubulin.
Miyu Enomoto, Akiko Asada, Taro Saito, Kanae Ando   +3 more
wiley   +1 more source