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Human naïve B cells recognize prepandemic influenza virus hemagglutinins.
Sci Immunol
January 2025
Ragon Institute of Mass General, MIT, and Harvard, Cambridge, MA 02139, USA.
Understanding the naïve B cell repertoire and its specificity for potential zoonotic threats, such as the highly pathogenic avian influenza (HPAI) H5Nx viruses, may allow prediction of infection- or vaccine-specific responses. However, this naïve repertoire and the possibility to respond to emerging, prepandemic viruses are largely undetermined. Here, we profiled naïve B cell reactivity against a prototypical HPAI H5 hemagglutinin (HA), the major target of antibody responses.
View Article and Find Full Text PDFFirst Record and Identification of a Microsporidian Pathogen, Nosema Maddoxi in the Population of Brown Marmorated Stink Bug Halyomorpha Halys (Hemiptera: Pentatomidae) in Türkiye.
Acta Parasitol
January 2025
Department of Molecular Biology and Genetics, Faculty of Arts and Science, Ordu University, Ordu, Türkiye.
Purpose: The brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae), is an invasive and a highly polyphagous species with a strong dispersal capacity. Unfortunately, there is currently no effective control method that can prevent or reduce the economic loss caused by this pest. Among natural enemies, microsporidia cause infections in insects so that they can generally shorten life span, reduce fertility and inhibit growth.
View Article and Find Full Text PDFCryo-EM structure of the conjugation H-pilus reveals the cyclic nature of the TrhA pilin.
bioRxiv
December 2024
Rutherford Appleton Laboratory, Research Complex at Harwell, Didcot, Oxfordshire, UK.
Conjugation, the major driver of the spread of antimicrobial resistance genes, relies on a conjugation pilus for DNA transfer. Conjugative pili, such as the F-pilus, are dynamic tubular structures, composed of a polymerized pilin, that mediate the initial donor-recipient interactions, a process known as mating pair formation (MPF). IncH are low-copy-number plasmids, traditionally considered broad host range, which are found in bacteria infecting both humans and animals.
View Article and Find Full Text PDFTuning the properties of soy protein isolate-based adhesive using various sustainable additives.
Int J Biol Macromol
January 2025
Department of Chemical, Metallurgical and Materials Engineering (Polymer Division), Institute of NanoEngineering Research (INER), Tshwane University of Technology, Pretoria, South Africa.
This work investigates the adhesive property of Soy Protein Isolate (SPI) polymer solution by studying mechanical properties of composites formed using waste wood granules and SPI solutions. To improve the adhesive strength of SPI solution, Carboxymethyl Cellulose Sodium (NaCMC) was mixed (in the weight ratios of 9:1 and 8:2) due to its strong gel formation capabilities. The adhesive performance of these composites was further investigated in the presence and absence of non-toxic additives, including sorbitol (SOR) and stearic acid (SA).
View Article and Find Full Text PDFHigher-order transient structures and the principle of dynamic connectivity in membrane signaling.
Proc Natl Acad Sci U S A
January 2025
Laboratory of Molecular Neurobiology and Biophysics, The Rockefeller University, New York, NY 10065.
We examine the role of higher-order transient structures (HOTS) in M2R regulation of GIRK channels. Electron microscopic membrane protein location maps show that both proteins form HOTS that exhibit a statistical bias to be near each other. Theoretical calculations and electrophysiological measurements suggest that channel activity is isolated near larger M2R HOTS.
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