Results 81 to 90 of about 723,767 (301)

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Exposure to outdoor artificial light at night is associated with a higher risk of ulcerative colitis: a prospective cohort study from the UK Biobank

Frontiers in Public Health
BackgroundInflammatory bowel disease (IBD) is a chronic inflammatory condition of the gastrointestinal tract, and environmental factors are believed to play an important role in its pathogenesis.
Jiamiao Chen, Jiamiao Chen, Laifu Li, Laifu Li, Yan Ran, Yan Ran, Zhuoya Sun, Zhuoya Sun, Shiwei Lu, Shiwei Lu, Yan Zhuang, Yan Zhuang, Lianli Wang, Lianli Wang, Yating Sun, Yating Sun, Fei Dai, Fei Dai   +17 more
doaj   +1 more source

The myosin X motor is optimized for movement on actin bundles

Nature Communications, 2016
Myosin X is a molecular motor unique in its ability to generate filopodia, but the mechanism explaining this behaviour is not known. Here, through a combination of structure, single-molecule assays and modelling the authors show that myosin X is ...
Virginie Ropars, Zhaohui Yang, Tatiana Isabet, Florian Blanc, Kaifeng Zhou, Tianming Lin, Xiaoyan Liu, Pascale Hissier, Frédéric Samazan, Béatrice Amigues, Eric D. Yang, Hyokeun Park, Olena Pylypenko, Marco Cecchini, Charles V. Sindelar, H. Lee Sweeney, Anne Houdusse   +16 more
doaj   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Differences in the progression of liver disease in male and female rats induced by TAA: considerations in the development of pharmacological therapies

Annals of Hepatology
Introduction and Objectives: Thioacetamide (TAA) is a hepatotoxic agent that causes fibrosis, cirrhosis, and cancer. Various doses and regimens of TAA have been tested in different murine models to validate hepatoprotective compounds.
Jesús Dorantes-Alvarez, Moisés Martínez-Castillo, Adrián Flores-Sánchez, Ángel García-López, Luz Castro-Hernández, Abigail Hernandez-Barragan, Marisela Hernández-Santillán, Gabriela Gutierrez-Reyes   +7 more
doaj   +1 more source

Esophageal High Pressure Zones: Effect of Perisophageal Structures on Esophageal Manometric Recording

Canadian Journal of Gastroenterology, 1994
During the course of esophageal motility studies, short zones of elevated esophageal baseline pressure are occasionally noticed. The aim of this study is to determine their frequency and their cause. Among 77 consecutive esophageal manometries (group 1),
G Bédard, A Pellicano, R Ste-Marie
doaj   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

A Cellular Automata Model for Citrus Variagated Chlorosis

, 2000
A cellular automata model is proposed to analyze the progress of Citrus Variegated Chlorosis epidemics in S\~ao Paulo oranges plantation. In this model epidemiological and environmental features, such as motility of sharpshooter vectors which perform L ...
A. Kleczkowski, A. L. Barabási, B. Hau, B. L. Hill, C. A. Gilligan, C. A. Gilligan, C. C. B. Bufon, C. K. Peng, D. A. Palazzo, F. F. Laranjeira, G. B. Ermentrout, G. Ceotto, G. M. Viswanathan, H. E. Stanley, H. Larralde, J. A. Sales, J. G. Moreira, J. M. Silva, J. R. S. Lopes, K. P. Minogue, L. Amorim, L. Amorim, M. J. G. Beretta, M. L. Martins, P. Bak, S. G. Alves, S. R. Roberto, S. Wolfram, T. R. Gottwald, T. Vicsek   +29 more
core   +2 more sources

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

Omecamtiv mecarbil and Mavacamten target the same myosin pocket despite opposite effects in heart contraction

Nature Communications
Inherited cardiomyopathies are common cardiac diseases worldwide, leading in the late stage to heart failure and death. The most promising treatments against these diseases are small molecules directly modulating the force produced by β-cardiac myosin ...
Daniel Auguin, Julien Robert-Paganin, Stéphane Réty, Carlos Kikuti, Amandine David, Gabriele Theumer, Arndt W. Schmidt, Hans-Joachim Knölker, Anne Houdusse   +8 more
doaj   +1 more source