Results 91 to 100 of about 29,235,414 (292)

Switching Spike Plasticity Shapes ACE2 Engagement Across SARS‐CoV‐2 Variants

Advanced Science, EarlyView.
Conformational plasticity governs SARS‐CoV‐2 spike function and ACE2 recognition. Using high‐speed AFM and single‐molecule force spectroscopy, we analyzed the ancestral spike and nine variants, revealing progressive rigidification from Delta, variable plasticity in Omicron sublineages, and JN.1 compaction.
Sarah Stainer, Rong Zhu, Manuel Reithofer, Gerhard Stadlmayr, Katharina Stadlbauer, Panchika Prangkio, Christoph Rippel, Markus Hahn, Aniko Eva Kasztner, Stefanie Stohl, Petr Bednar, Daniel Ruzek, David Glück, Robert Tampé, Gordana Wozniak‐Knopp, Yoo Jin Oh, Miriam Klausberger, Peter Hinterdorfer   +17 more
wiley   +1 more source

Substrate‐Dependent Crosslinking by the Cytochrome P450 From Aminopyruvatide Biosynthesis

Angewandte Chemie, EarlyView.
Substitutions in the aminopyruvatide precursor peptide altered the C─C linkage formed from a YLY motif by the P450 ApyO to a N─C linkage in a WLY motif. Moreover, constitutional isomers crosslinked by C─C and C─O linkages were formed from YYY or YWY motifs. ABSTRACT Cytochrome P450s catalyze an array of reactions including crosslinking of aromatic side
Chandrashekhar Padhi, Dinh T. Nguyen, Lingyang Zhu, Lide Cha, Jesse W. Wald, Douglas A. Mitchell, Wilfred A. van der Donk   +6 more
wiley   +2 more sources

Supramolecular Degraders: An Emerging Paradigm in Targeted Protein Degradation

Advanced Science, EarlyView.
Dynamic supramolecular assembly reshapes targeted protein degradation by coordinating modular degrader construction, delivery, functional integration, and intracellular assembly or activation across proteasomal, endosomal–lysosomal, and autophagy–lysosomal pathways.
Kongjun Liu, Xue Yuan, Yan Zhou, Rui Yuan, Shaocheng Xie, Yong Chen, Peiyi Wang, Jianmei Gao, Qihai Gong   +8 more
wiley   +1 more source

Sequential Design of Activatable Photosensitizers for Ablation of Glioma Cells in Brain Cancer Tissues

Angewandte Chemie, EarlyView.
Gal‐SeNBD‐oleamide is an activatable photosensitizer (PS) with efficient uptake and selective, β‐galactosidase‐triggered activation in cancer cells, enabling efficient photodynamic ablation of glioma cells directly in brain tissue slices from mouse preclinical models and human glioblastoma patients.
Utsa Karmakar, Zhiming Cheng, Andrew D. M. Green, Sam Benson, Eleni Nestoros, Clarissa Lim, Justyna Cholewa‐Waclaw, Fabio de Moliner, Paula Lusarreta, Deborah Seah, Alsadeg Bilal, Neza Alfazema, Thibaud Aymoz‐Bressot, Gillian Morrison, Sonja Vermeren, Steven M. Pollard, Paul M. Brennan, Michael G. Tanner, Marc Vendrell   +18 more
wiley   +2 more sources

Inhibition of Cathepsin L: A Possible Mechanism for The Prevention of Ebola Virus Infectivity on The Host Cell

Sokoto Journal of Medical Laboratory Science, 2020
Cathepsin L, a lysosomal endopeptidase expressed in most eukaryotic cells, is a member of the papain-like family of cysteine proteinases. This broad-spectrum protease is potent in degrading several extracellular proteins (laminins, fibronectin, collagens
Minari, J.B.* and Adelabu, M.A.
doaj  

Cathepsin inhibition-induced lysosomal dysfunction enhances pancreatic beta-cell apoptosis in high glucose.

PLoS ONE, 2015
Autophagy is a lysosomal degradative pathway that plays an important role in maintaining cellular homeostasis. We previously showed that the inhibition of autophagy causes pancreatic β-cell apoptosis, suggesting that autophagy is a protective mechanism ...
Minjeong Jung, Jaemeun Lee, Hye-Young Seo, Ji Sun Lim, Eun-Kyoung Kim   +4 more
doaj   +1 more source

In Silico Identification of Potential Natural Product Inhibitors of Human Proteases Key to SARS-CoV-2 Infection

Molecules, 2020
Presently, there are no approved drugs or vaccines to treat COVID-19, which has spread to over 200 countries and at the time of writing was responsible for over 650,000 deaths worldwide.
R.P. Vivek-Ananth, Abhijit Rana, Nithin Rajan, Himansu S. Biswal, Areejit Samal   +4 more
doaj   +1 more source

Analysis of cathepsin B and cathepsin L treatment to clear toxic lysosomal protein aggregates in neuronal ceroid lipofuscinosis

, 2021
: Proteolysis mediated by lysosomal cathepsin proteases maintains a physiological flow in autophagy, phagocytosis and endocytosis. Neuronal Ceroid Lipofuscinosis (NCL) is a childhood neurodegenerative disorder characterized by disturbed autophagic flow ...
Saftig P., Fogh J., Bartsch U., Schmidt L., Thießen N., Di Spiezio A., Marques A. R. A., Gallwitz L.   +7 more
core   +1 more source

ACSL4‐Dependent Lysosomal Lipid Peroxidation Links WTAP‐Mediated m6A Modification to Intervertebral Disc Degeneration

Advanced Science, EarlyView.
IL‐1β upregulates the protein level of WTAP, which promotes the m6A modification of ACSL4 mRNA in an IGF2BP2‐dependent manner, thereby enhancing its stability. The increased ACSL4 drives lipid peroxidation, leading to lysosomal membrane permeabilization (LMP) and impaired mitophagy, which collectively accelerate intervertebral disc degeneration (IVDD).
Shu Jia, Xu Gao, Laimin Zhu, Haixia Song, Jing Wu, Shang Chen, Sheng Gao, Lu Zhang, Chunyang Meng   +8 more
wiley   +1 more source

The Potential Role of the Proteases Cathepsin D and Cathepsin L in the Progression and Metastasis of Epithelial Ovarian Cancer

Biomolecules, 2015
Epithelial ovarian cancer (EOC) is the leading cause of death from gynecologic malignancies and has a poor prognosis due to relatively unspecific early symptoms, and thus often advanced stage, metastasized cancer at presentation. Metastasis of EOC occurs
M. Z. I. Pranjol, N. Gutowski, M. Hannemann, J. Whatmore   +3 more
semanticscholar   +1 more source