Results 1 to 10 of about 183,677 (243)

Enantiotropy of Simvastatin as a Result of Weakened Interactions in the Crystal Lattice: Entropy-Driven Double Transitions and the Transient Modulated Phase as Seen by Solid-State NMR Spectroscopy

open access: yesMolecules, 2022
In crystalline molecular solids, in the absence of strong intermolecular interactions, entropy-driven processes play a key role in the formation of dynamically modulated transient phases.
Jiri Brus   +3 more
doaj   +1 more source

Protein NMR spectroscopy [PDF]

open access: yesCurrent Biology, 1998
Protein NMR spectroscopy does have its limitations. It has so far been used mainly for small proteins with molecular weight of less than 30 kDa, although a handful of publications have now reported the NMR study of proteins up to 40–50 kDa. Larger proteins typically have faster relaxation rates, which results in fatter NMR peaks that tend to merge with
openaire   +2 more sources

Energetics of Excitatory and Inhibitory Neurotransmission in Aluminum Chloride Model of Alzheimer’s Disease: Reversal of Behavioral and Metabolic Deficits by Rasa Sindoor

open access: yesFrontiers in Molecular Neuroscience, 2017
Alzheimer’s disease (AD) is an age-related neurodegenerative disorder, characterized by progressive loss of cognitive functions and memory. Excessive intake of aluminum chloride in drinking water is associated with amyloid plaques and neurofibrillary ...
Kamal Saba   +6 more
doaj   +1 more source

A distinct mechanism of C-type inactivation in the Kv-like KcsA mutant E71V

open access: yesNature Communications, 2022
Constriction of the selectivity filter is assumed to be a hallmark of C-type inactivation in K+ channels. Using different high-resolution methods, this study shows a distinct C-type inactivation mechanism in a KcsA mutant that emulates Kv-channels.
Ahmed Rohaim   +8 more
doaj   +1 more source

Regulation of the Target of Rapamycin and Other Phosphatidylinositol 3-Kinase-Related Kinases by Membrane Targeting

open access: yesMembranes, 2015
Phosphatidylinositol 3-kinase-related kinases (PIKKs) play vital roles in the regulation of cell growth, proliferation, survival, and consequently metabolism, as well as in the cellular response to stresses such as ionizing radiation or redox changes. In
Maristella De Cicco   +2 more
doaj   +1 more source

Formation of the β-barrel assembly machinery complex in lipid bilayers as seen by solid-state NMR

open access: yesNature Communications, 2018
The β-barrel assembly machinery (BAM) catalyzes β-barrel protein insertion into the outer membrane of E.coli. Here authors employ high-sensitivity solid-state NMR to reveal how the lipid environment and formation of the BamA-BamCDE complex affect BamA ...
Cecilia Pinto   +5 more
doaj   +1 more source

Atomic-level insight into mRNA processing bodies by combining solid and solution-state NMR spectroscopy

open access: yesNature Communications, 2019
Processing bodies are membrane less organelles that contain enzymes involved in mRNA turnover, among them enhancer of decapping 3 (Edc3). Here the authors use solid- and solution-state NMR spectroscopy to characterize the structural organization and ...
Reinier Damman   +5 more
doaj   +1 more source

Characterization of the cell wall of a mushroom forming fungus at atomic resolution using solid-state NMR spectroscopy

open access: yesThe Cell Surface, 2020
Cell walls are essential in the interaction of fungi with the (a)biotic environment and are also key to hyphal morphogenesis and mechanical strength. Here, we used solid-state NMR (ssNMR) spectroscopy combined with HPLC and GC–MS to study the structural ...
Helena Leona Ehren   +5 more
doaj   +1 more source

Probing Nuclear Dipole Moments and Magnetic Shielding Constants through 3-Helium NMR Spectroscopy

open access: yesPhyschem, 2022
Multinuclear NMR studies of the gaseous mixtures that involve volatile compounds and 3He atoms are featured in this review. The precise analyses of 3He and other nuclei resonance frequencies show linear dependencies on gas density.
Włodzimierz Makulski
doaj   +1 more source

Shifts in the selectivity filter dynamics cause modal gating in K+ channels

open access: yesNature Communications, 2019
Spontaneous activity shifts at constant experimental conditions are widespread among ion channels but the molecular origins are poorly understood. Here, using solid-state NMR and MD simulations, the authors reveal that modal gating shifts in K + channels
Shehrazade Jekhmane   +7 more
doaj   +1 more source

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