Results 91 to 100 of about 10,973 (280)

5-Aryl-2-(3,5-dialkyl-4-hydroxyphenyl)-4,4-dimethyl-4H-imidazole 3-Oxides and Their Redox Species: How Antioxidant Activity of 1-Hydroxy-2,5-dihydro-1H-imidazoles Correlates with the Stability of Hybrid Phenoxyl–Nitroxides

Molecules, 2020
Cyclic nitrones of the imidazole series, containing a sterically hindered phenol group, are promising objects for studying antioxidant activity; on the other hand, they can form persistent hybrid phenoxyl–nitroxyl radicals (HPNs) upon oxidation.
Svetlana A. Amitina, Elena V. Zaytseva, Natalya A. Dmitrieva, Alyona V. Lomanovich, Natalya V. Kandalintseva, Yury A. Ten, Ilya A. Artamonov, Alexander F. Markov, Dmitrii G. Mazhukin   +8 more
doaj   +1 more source

Desferrioxamine biosynthesis : diverse hydroxamate assembly by substrate-tolerant acyl transferase DesC [PDF]

, 2018
Hydroxamate groups play key roles in the biological function of diverse natural products. Important examples include trichostatin A, which inhibits histone deacetylases via coordination of the active site zinc(II) ion with a hydroxamate group, and the ...
Alkhalaf, Lona M., Challis, Gregory L., Kadi, Nadia, McMahon, Stephen A., Naismith, James H., Ronan, Jade L.   +5 more
core   +1 more source

Spike‐Embedded Nanocatalysts via Metal‐Directed Carbonization for Highly Efficient and Robust Semi‐Hydrogenation

Advanced Science, EarlyView.
A metal‐directed carbonization strategy transforms hierarchical organic microspheres into spiky carbon catalysts with Pd nanoparticles embedded at the tips. This approach resolves the activity‐stability trade‐off, achieving exceptional poison resistance in semi‐hydrogenations, offering a versatile, scalable platform for designing high‐performance ...
Yintao Li, Yang Sun, Minghang Li, Wenxuan Zhang, Zhengtao Li, Yihao Ni, Yao Zhang, Yong Wang, Samuel S. Veroneau, Pengfei Ji   +9 more
wiley   +1 more source

Ferredoxin:NADP(H) Oxidoreductase Abundance and Location Influences Redox Poise and Stress Tolerance [PDF]

, 2016
In linear photosynthetic electron transport, ferredoxin:NADP(H) oxidoreductase (FNR) transfers electrons from ferredoxin (Fd) to NADP(+). Both NADPH and reduced Fd (Fd(red)) are required for reductive assimilation and light/dark activation/deactivation ...
Garapati, P, Goss, T, Hanke, GT, Hase, T, Ivanov, B, Klare, JP, Kozuleva, M, Rudi, K, Scheibe, R, Selinski, J, Steinhoff, H-J, Trapka, J, Twachtmann, M   +12 more
core   +1 more source

ZDHHC18‐Mediated Palmitoylation of ORF3a Promotes SARS‐CoV‐2 Pathogenesis by Antagonizing TRIM16‐Mediated Ubiquitination and Proteasomal Degradation

Advanced Science, EarlyView.
Palmitoylation by ZDHHC18 blocks ORF3a K27‐linked ubiquitination mediated by TRIM16, thereby preventing its proteasomal degradation and strengthening viral pathogenesis. Targeting palmitoylation through a pharmacological inhibitor (2‐BP), a competitive inhibitory peptide (OPIP), or adenovirus‐mediated knockdown of ZDHHC18 expression presents a ...
Sidi Yang, Kun Li, Lihong Liu, Linsen Zeng, Qifeng Deng, Jiacheng Huang, Xiaoran Dong, Xin Wang, Jianwei Liang, Hongchao Liu, Hong Peng, Yuxin Lin, Xiaolu Xie, Yuzhen Ye, Tiefeng Xu, Zhaohuan Wang, Chun‐Mei Li, Deyin Guo   +17 more
wiley   +1 more source

Nano Carbon‐mesh with Excellent Bonding Performance via Hydro‐cage De‐shielding Strategy

Advanced Science, EarlyView.
A hydro‐cage de‐shielding strategy transforms cellulose‐based films into a dragonfly‐wing‐like nano carbon‐mesh (NCM) adhesive through instantaneous carbonization‐polymerization. The resulting NCM‐plywood achieves exceptional wet shear strength (1.24 MPa at 63°C), exceeding Class II plywood standards, and retains 0.73 MPa after boiling‐water cycles ...
Weijia Yang, Jianyong Wan, Hongda Guo, Haizhu Wu, Yongli Yang, Wenhe Bi, Zhengyong Yang, Chenghua Wang, Bertrand Charrier, Hisham Essawy, Antonio Pizzi, Xinyi Chen, Zhijun Chen, Guanben Du, Xiaojian Zhou   +14 more
wiley   +1 more source

Membrane-lipid therapy in operation: the HSP co-inducer BGP-15 activates stress signal transduction pathways by remodeling plasma membrane rafts.

PLoS ONE, 2011
Aging and pathophysiological conditions are linked to membrane changes which modulate membrane-controlled molecular switches, causing dysregulated heat shock protein (HSP) expression.
Imre Gombos, Tim Crul, Stefano Piotto, Burcin Güngör, Zsolt Török, Gábor Balogh, Mária Péter, J Peter Slotte, Federica Campana, Ana-Maria Pilbat, Akos Hunya, Noémi Tóth, Zsuzsanna Literati-Nagy, László Vígh, Attila Glatz, Mario Brameshuber, Gerhard J Schütz, Andrea Hevener, Mark A Febbraio, Ibolya Horváth, László Vígh   +20 more
doaj   +1 more source

One-pot multicomponent nitro-Mannich reaction using a heterogeneous catalyst under solvent-free conditions [PDF]

, 2018
An environmentally-friendly, one-pot multicomponent reaction of various aldehydes, amines and nitroalkanes for the synthesis of β-nitroamines is here described.
Bosica, Giovanna, Zammit, Ramon
core   +2 more sources

ZDHHC17‐Mediated CDK4 Palmitoylation Drives Cell Cycle Progression and Orchestrates Cancer Immune Surveillance

Advanced Science, EarlyView.
ZDHHC17 palmitoylates CDK4, which together with TRAF6‐mediated ubiquitination, drives cell cycle progression and immune surveillance, revealing a rational combination of CDK4 inhibitors with immune checkpoint blockers for ZDHHC17‐driven cancers. ABSTRACT Uncontrolled cell cycle progression is a hallmark of cancer, tightly regulated by both intrinsic ...
Zekang Wang, Peipei Song, Xueji Wu, Lei Wang, Wei Xie, Pinning Feng, Chao Cheng, Jianping Guo   +7 more
wiley   +1 more source

Synthesis And Characterization Of (pyNO−)2GaCl: A Redox-Active Gallium Complex [PDF]

, 2018
We report the synthesis of a gallium complex incorporating redox-active pyridyl nitroxide ligands. The (pyNO−)2GaCl complex was prepared in 85% yield via a salt metathesis route and was characterized by 1H and 13C NMR spectroscopies, X-ray diffraction ...
Carroll, P. J., Graves, Christopher R., Kirsh, Jacob M., , \u2717, Manor, B. C., Rablen, Paul R., Woodside, Audra J., , \u2719   +5 more
core   +2 more sources