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The Sulfur Shift: An Activation Mechanism for Periplasmic Nitrate Reductase and Formate Dehydrogenase
(American Chemical Society, 2013-09)
A structural rearrangement known as sulfur shift occurs in some Mo-containing enzymes of the DMSO reductase family. This mechanism is characterized by the displacement of a coordinating cysteine thiol (or SeCys in Fdh) ...
Predicting 13Ca chemical shifts for validation of protein structures
(Springer, 2007-07)
The 13Ca chemical shifts for 16,299 residues from 213 conformations of four proteins (experimentally determined by X-ray crystallography and Nuclear Magnetic Resonance methods) were computed by using a combination of ...
Novel achromatic single reflection quarter-wave retarder: design and measurement
(American Institute of Physics, 2014-03)
In this work, we present an achromatic quarter-wave retarder whose design is based upon the reflection properties of an isotropic-anisotropic interface. In theory, it is possible to obtain a π/2 phase shift by means of a ...
Experimental-numerical comparison of the cantilever MEMS frequency shift in presence of a residual stress gradient
(Molecular Diversity Preservation International-mdpiBaselSuíça, 2008)
Factors affecting the use of 13Cα chemical shifts to determine, refine, and validate protein structures
(Veterinary and Human Toxicology, 2008-05)
Interest centers here on the analysis of two different, but related, phenomena that affect side-chain conformations and consequently 13Cα chemical shifts and their applications to determine, refine, and validate protein ...
A network-based approach to the analysis of ontogenetic diet shifts: An example with an endangered, small-sized fish
(Elsevier, 2011)
Many organisms exhibit ontogenetic shifts in their diet and habitat use, which often exert a large
influence on the structure and expected dynamics of food webs and ecological communities.
Nevertheless, reliable methods ...
Detection of methylation, acetylation and glycosylation of protein residues by monitoring 13C chemical-shift changes: A quantum-chemical study
(PeerJ, 2016-06)
Post-translational modifications of proteins expand the diversity of the proteome by several orders of magnitude and have a profound effect on several biological processes. Their detection by experimental methods is not ...
Effects of naps at work on the sleepiness of 12-hour night shift nursing personnel
(São Paulo, 2009)
Background and objective: The purpose of the present study was to evaluate the effects of a nap at work on the sleepiness of 12-hour, night-shift (registered and assistant) nursing personnel.Methods: Twelve nurses filled ...
Core-level shift analysis of amorphous CdTeO (x) materials
(SPRINGER, 2010-03-15)
We show the importance of considering the
detailed local distributions of oxygen atoms around tellurium
in CdTeOx glasses when interpreting X-ray photoemission
experiments. We perform first principles
calculations of ...