This review aims to analyse the role of solution nuclear magnetic resonance spectroscopy in pressure-induced in vitro studies of protein unfolding. Although this transition has been neglected for many years because of technical difficulties, it provides important information about the forces that keep protein structure together. We first analyse what pressure unfolding is, then provide a critical overview of how NMR spectroscopy has contributed to the field and evaluate the observables used in these studies. Finally, we discuss the commonalities and differences between pressure-, cold- and heat-induced unfolding. We conclude that, despite specific peculiarities, in both cold and pressure denaturation the important contribution of the state of hydration of nonpolar side chains is a major factor that determines the pressure dependence of the conformational stability of proteins.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1002/cbic.202300164 | DOI Listing |
Curr Hematol Malig Rep
January 2025
Division of Hematology, Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA.
Purpose Of Review: More than a decade following the discovery of Calreticulin (CALR) mutations as drivers of myeloproliferative neoplasms (MPN), advances in the understanding of CALR-mutant MPN continue to emerge. Here, we summarize recent advances in mehanistic understanding and in targeted therapies for CALR-mutant MPN.
Recent Findings: Structural insights revealed that the mutant CALR-MPL complex is a tetramer and the mutant CALR C-terminus is exposed on the cell surface.
Ambio
January 2025
School of Geography, Earth and Atmospheric Sciences, The University of Melbourne, Parkville, VIC, Australia.
Rising sea levels under a changing climate will cause permanent inundation, flooding, coastal erosion, and saltwater intrusion. An emerging adaptation response is planned relocation, a directed process of relocating people, assets, and infrastructure to safer locations. Climate-related planned relocation is an unfolding process, yet no longitudinal studies have examined outcomes over time.
View Article and Find Full Text PDFNat Rev Neurosci
January 2025
Princeton Neuroscience Institute, Princeton University, Princeton, NJ, USA.
Schemas are rich and complex knowledge structures about the typical unfolding of events in a context; for example, a schema of a dinner at a restaurant. In this Perspective, we suggest that reinforcement learning (RL), a computational theory of learning the structure of the world and relevant goal-oriented behaviour, underlies schema learning. We synthesize literature about schemas and RL to offer that three RL principles might govern the learning of schemas: learning via prediction errors, constructing hierarchical knowledge using hierarchical RL, and dimensionality reduction through learning a simplified and abstract representation of the world.
View Article and Find Full Text PDFPLoS One
January 2025
Physical Biology / Physikalische Biologie (IZN, FB 15), Buchmann Institute for Molecular Life Sciences (BMLS), Cluster of Excellence Frankfurt-Macromolecular Complexes (CEF-MC), Goethe-Universität-Frankfurt am Main (Campus Riedberg), Frankfurt am Main, Germany.
Comparative studies across multiple species provide valuable insights into the evolutionary diversification of developmental strategies. While the fruit fly Drosophila melanogaster has long been the primary insect model organism for understanding molecular genetics and embryonic development, the Mediterranean fruit fly Ceratitis capitata, also known as medfly, presents a promising complementary model for studying developmental biology. With its sequenced genome and a diverse array of molecular techniques, the medfly is well-equipped for study.
View Article and Find Full Text PDFmBio
January 2025
Department of Infectious Diseases, Molecular Virology, Center for Integrative Infectious Disease Research, Medical Faculty Heidelberg, Heidelberg University, Heidelberg, Germany.
The unfolded protein response (UPR) is a cell-autonomous stress response aimed at restoring homeostasis due to the accumulation of misfolded proteins in the endoplasmic reticulum (ER). Viruses often hijack the host cell machinery, leading to an accumulation of misfolded proteins in the ER. The cell-autonomous UPR is the immediate response of an infected cell to this stress, aiming to restore normal function by halting protein translation, degrading misfolded proteins, and activating signaling pathways that increase the production of molecular chaperones.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!