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Structure Characterization of a Disordered Peptide Using In-Droplet Hydrogen/Deuterium Exchange Mass Spectrometry and Molecular Dynamics.
ACS Phys Chem Au
January 2025
Department of Chemistry, West Virginia University, Morgantown, West Virginia 26506, United States.
In-droplet hydrogen/deuterium exchange (HDX)-mass spectrometry (MS) experiments have been conducted for peptides of highly varied conformational type. A new model is presented that combines the use of protection factors (PF) from molecular dynamics (MD) simulations with intrinsic HDX rates ( ) to obtain a structure-to-reactivity calibration curve. Using the model, the relationship of peptide structural flexibility and HDX reactivity for different peptides is elucidated.
View Article and Find Full Text PDFModeling of the Carbohydrate Oxacarbenium Ionic Intermediates of Glycosylation Reactions with Explicit Account for Protective Group Effects.
ACS Omega
January 2025
Laboratory of Glycoconjugate Chemistry, N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia.
O-Protected oxacarbenium ions are key intermediates of glycosylation reactions. The knowledge of their conformational preferences is crucial for choosing the correct blocking group pattern to achieve the required stereochemical outcome. This article describes a computational study of several glucosyl oxacarbenium cations.
View Article and Find Full Text PDFEvaluating the antioxidant, anti-inflammatory, and neuroprotective potential of fruiting body and mycelium extracts from edible yellow morel (Morchella esculenta L. Pers.).
J Food Sci
January 2025
Department of Biosciences, COMSATS University Islamabad (CUI), Park Road, Islamabad, Pakistan.
Scope: This study aimed to assess the antioxidant, anti-inflammatory, and acetylcholinesterase activities of fruiting bodies (FB) and mycelium (M) extracts of Morchella esculenta L. collected from various regions of Pakistan. The samples included Skardu fruiting body (SKFB) and mycelia Skardu (SKM), Malam Jaba fruiting body (MJFB) and Malam Jaba mycelia (MJM), Krair Mansehra fruiting body (KMFB) and Krair Mansehra mycelia (KMM), and Thandiani fruiting body (TFB) and Thandiani mycelia (TM).
View Article and Find Full Text PDFExogenous dsRNA triggers sequence-specific RNAi and fungal stress responses to control Magnaporthe oryzae in Brachypodium distachyon.
Commun Biol
January 2025
Institute of Phytopathology, Research Centre for BioSystems, Land Use and Nutrition, Justus Liebig University Giessen, Heinrich-Buff-Ring 26, 35392, Giessen, Germany.
In vertebrates and plants, dsRNA plays crucial roles as PAMP and as a mediator of RNAi. How higher fungi respond to dsRNA is not known. We demonstrate that Magnaporthe oryzae (Mo), a globally significant crop pathogen, internalizes dsRNA across a broad size range of 21 to about 3000 bp.
View Article and Find Full Text PDFRNAi-based biocontrol for crops: a revised expectation for a non-recent technology.
Planta
January 2025
School of Life Sciences and Technology, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung, 40132, Indonesia.
The exogenous application of RNAi technology offers new promises for crops improvement. Cell-based or synthetically produced strands are economical, non-transgenic and could induce the same responses. The substantial population growth demands novel strategies to produce crops without further damaging the environment.
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