Results 81 to 90 of about 11,336 (207)
Isocyanides as a Chemical Tool for Identifying [Fe]‐Hydrogenase‐Dependent Methanogenesis
In model methanogens, [Fe]‐hydrogenase (Hmd) substitutes nickel‐dependent hydrogenases under nickel‐limited conditions. We determined the inhibitory effects of the Hmd inhibitor, isocyanides, on methanogenesis in a cell extract and in a cell suspension.
Shunsuke Nomura, Seigo Shima
wiley +1 more source
By mimicking nature’s use of weak supramolecular interactions, zinc macrocycles are assembled within defective UiO‐67 to create cooperative synzymes for CO2 valorization. Confined amines, hydrogen‐bonding networks and accessible iodides work in concert to activate CO2 and epoxides at ambient pressure, delivering additive‐free catalysis that outperforms
J. E. Chiva +7 more
wiley +1 more source
The Role of Iron‐Hyponitrite Intermediates in Biology and Insights From Synthetic Model Complexes
Despite the difference in active site architecture, NO reduction by different NOR enzymes is expected to be linked by a common intermediate: hyponitrite (N2O22−). However, experimentally, very little is known about the coordination chemistry of iron with hyponitrite and the expected Fe‐hyponitrite intermediates.
Michael O. Lengel, Nicolai Lehnert
wiley +1 more source
An Artificial metalloenzyme was designed by a Michael addition between a MnSalen complex and a cysteine residue within NikA crystals. The heterogeneous catalyst was found capable of an enantioselective and stereospecific epoxidation of cis‐β‐methylstyrene in cristallo.
Manel Boukhallat +8 more
wiley +1 more source
How Proton Incorporation Reshapes Lattice Dynamics In BaSnO3‐Type Proton Conductors
Yttrium‐doped BaSnO3 exhibits isotope‐dependent changes in its low‐energy vibrational density of states upon hydration. Comparison of dry, H2O‐, and D2O‐treated samples re‐veals mass‐dependent phonon renormalization linked to proton dynamics near oxygen va‐cancies, providing experimental insight into hydrogen‐coupled lattice excitations in proton ...
Artur Braun +9 more
wiley +1 more source
Production and biochemical characterization of a new β‐carbonic anhydrase from the probiotic Bifidobacterium longum, one of the main players of human gut microbiota. ABSTRACT The microbiota comprises communities of microorganisms that establish complex relationships with the host and play key roles in physiology, metabolism, and immunity.
Simone Giovannuzzi +11 more
wiley +1 more source
Zinc (Zn) is a vital trace element that plays a pivotal role in protein synthesis, cellular growth, and differentiation and is involved as a cofactor of metalloenzymes, performing a wide variety of metabolic, immune, and synthesis roles.
Mansour Al Qurashi +7 more
doaj +1 more source
ABSTRACT In this study, 12 novel sulfonamide derivatives incorporating 2‐amino‐1,3,4‐oxadiazole and 1,3‐benzazol‐2(3H)‐one scaffolds were synthesized and structurally characterized using 1H NMR, 13C NMR, and LC–MS analyses. Their inhibitory activities were evaluated against acetylcholinesterase (AChE), butyrylcholinesterase (BChE), carbonic anhydrase I
Gülnur Arslan Karahan +4 more
wiley +1 more source
Hot‐water blanching (100°C, 1–5 min), citric acid treatment (1%–5% w/v in water), and microwave blanching (720 W, 30–40 s) were employed to modify the bioactive compounds of banana flowers. Microwave blanching for 40 s yielded the highest amounts of total phenolics (7.60 mg GAE/g), total flavonoids (4.90 mg QE/g), and antioxidant activity.
Saurabh Bhosle +2 more
wiley +1 more source
Two novel axially substituted silicon phthalocyanines were synthesized and characterized. Compound 2a exhibited significantly enhanced inhibition of AChE, BChE, hCA I and hCA II, supported by molecular docking and SAR analysis, highlighting its potential as a multifunctional enzyme inhibitor with promising biological activity.
Seda Ünlü +3 more
wiley +1 more source

