Results 131 to 140 of about 27,575 (332)

Two‐metal‐edge extended X‐ray absorption fine structure analysis of oxygen octahedral rotation in SrTiO3 using the reverse Monte Carlo method

open access: yesJournal of Synchrotron Radiation, EarlyView.
Improved accuracy of the octahedral local rotation in SrTiO3 has been achieved by simultaneous two‐metal‐edge EXAFS refinement.A three‐dimensional analysis method for X‐ray absorption spectra, combining two‐metal‐edge extended X‐ray absorption fine structure (EXAFS) analysis with reverse Monte Carlo simulations, was applied to study the cubic‐to ...
Kai Kamijo   +3 more
wiley   +1 more source

Proton NMR Spectroscopy as a Probe of Dinuclear Copper(II) Active Sites in Metalloproteins. Characterization of the Hyperactive Copper(II)-Substituted Aminopeptidase from \u3cem\u3eAeromonas proteolytica\u3c/em\u3e [PDF]

open access: yes, 1998
Proton NMR spectra of the hyperactive Cu(II)-substituted aminopeptidase from Aeromonas proteolytica (AAP) were recorded in both H2O and D2O buffered solution at pH 6.7.
Bennett, Brian   +3 more
core   +1 more source

Rapid and Precise Determination of Zero-Field Splittings by Terahertz Time-Domain Electron Paramagnetic Resonance Spectroscopy

open access: yes, 2017
Zero-field splitting (ZFS) parameters are fundamentally tied to the geometries of metal ion complexes. Despite their critical importance for understanding the magnetism and spectroscopy of metal complexes, they are not routinely available through general
Belvin, Carina   +9 more
core   +1 more source

Preparing for successful protein crystallization experiments

open access: yesActa Crystallographica Section F, EarlyView.
All crystal‐based structural biology methods, including X‐ray crystallography, serial synchrotron and serial femtosecond crystallography, and electron diffraction, require the preparation of biomolecular crystals. This article covers strategies for careful sample preparation in crystallization experiments to increase the chance of success.Crystal‐based
Gabrielle R. Budziszewski   +2 more
wiley   +1 more source

Quantum Effects in Cation Interactions with First and Second Coordination Shell Ligands in Metalloproteins

open access: yesJournal of Chemical Theory and Computation, 2015
Despite decades of investigations, the principal mechanisms responsible for the high affinity and specificity of proteins for key physiological cations K+, Na+, and Ca2+ remain a hotly debated topic. At the core of the debate is an apparent need (or lack
Van A. Ngo   +8 more
semanticscholar   +1 more source

Relaxin‐2 improves type I diabetes mellitus‐induced erectile dysfunction in rats by protecting cavernous endothelial and smooth muscle function, and inhibiting penile fibrosis and apoptosis

open access: yesAndrology, EarlyView.
Abstract Background Diabetes mellitus‐induced erectile dysfunction (DMED) responds poorly to first‐line treatments, necessitating the development of new therapeutic strategies. Relaxin‐2 (RLX‐2) plays a crucial role in protecting vascular endothelium, vasodilatation, and antifibrosis in various diseases.
Bocheng Tu   +10 more
wiley   +1 more source

ONETEP + TOSCAM: uniting dynamical mean field theory and linear-scaling density functional theory [PDF]

open access: yesarXiv, 2019
We introduce the unification of dynamical mean field theory (DMFT) and linear-scaling density functional theory (DFT), as recently implemented in ONETEP, a linear-scaling DFT package, and TOSCAM, a DMFT toolbox. This code can account for strongly correlated electronic behavior while simultaneously including the effects of the environment, making it ...
arxiv  

Cryptococcus neoformans Iron-Sulfur Protein Biogenesis Machinery Is a Novel Layer of Protection against Cu Stress

open access: yesmBio, 2017
Copper (Cu) ions serve as catalytic cofactors to drive key biochemical processes, and yet Cu levels that exceed cellular homeostatic control capacity are toxic. The underlying mechanisms for Cu toxicity are poorly understood.
Sarela Garcia-Santamarina   +4 more
doaj   +1 more source

Elevated COMMD1 Contributes to Cardiomyocyte Copper Efflux in Chronic Myocardial Ischemia: Insights From Rhesus Monkey

open access: yesCell Proliferation, EarlyView.
Elevated COMMD1 contributes to copper efflux in cardiomyocytes during chronic ischaemia in rhesus monkey hearts, regulated by XIAP through post‐translational modification. Our findings suggest a positive feedback loop among XIAP, COMMD1 and copper efflux, contributing to ischaemic cardiomyocyte loss.
Chen Li   +10 more
wiley   +1 more source

Clinical efficacy of reamberine in therapy for influenza

open access: yesТерапевтический архив, 2010
Aim. To evaluate the tolerance and therapeutic effectiveness of 1.5% reamberine (RB) solution infusions in complex therapy for pneumonia-complicated pneumonia and acute respiratory diseases (ARD). Subjects and methods.
Valeriy Aleksandrovich Isakov   +7 more
doaj  

Home - About - Disclaimer - Privacy