搜索结果: 1-15 共查到“理学 proton”相关记录133条 . 查询时间(0.171 秒)
For the first time,scientists catch water molecules passing the proton baton
first time scientists water molecules proton baton
2016/12/13
Water conducts electricity, but the process by which this familiar fluid passes along positive charges has puzzled scientists for decades.But in a paper published in the Dec. 2 issue of the ...
Dissecting Proton Delocalization in an Enzyme’s Hydrogen Bond Network with Unnatural Amino Acids
Dissecting Proton Delocalization Enzyme’s Hydrogen Bond Network Unnatural Amino Acids
2016/5/25
Extended hydrogen bond networks are a common structural motif of enzymes. A recent analysis proposed quantum delocalization of protons as a feature present in the hydrogen bond network spanning a tria...
Short Hydrogen Bonds and Proton Delocalization in Green Fluorescent Protein (GFP)
Short Hydrogen Bonds Proton Delocalization Green Fluorescent Protein GFP
2016/5/25
Short hydrogen bonds and specifically low-barrier hydrogen bonds (LBHBs) have been the focus of much attention and controversy for their possible role in enzymatic catalysis. The green fluorescent pro...
Ground-state Proton Transfer Kinetics in Green Fluorescent Protein (GFP)
Mitotic centromere-associated kinase (MCAK/Kif2C) Cellular senescence p53 Human primary cells
2016/5/25
Proton transfer plays an important role in the optical properties of green fluorescent protein (GFP). While much is known about excited-state proton transfer reactions (ESPT) in GFP occurring on ultra...
Quantitative Dissection of Hydrogen Bond-Mediated Proton Transfer in the Ketosteroid Isomerase Active Site
active site environment computational modeling enzyme catalysis protein electrostatics protein semisynthesis
2016/5/25
Hydrogen bond networks are key elements of protein structure and function but have been challenging to study within the complex protein environment. We have carried out in-depth interrogations of the ...
Proton Affinity of the Oxyanion Hole in the Active Site of Ketosteroid Isomerase
Pseudomonas putida Protons Steroid Isomerases Crystallography,X-Ray Nuclear Magnetic Resonance,Biomolecular Catalytic Domain Protein Conformation Substrate Specificity Ketosteroids Mutagenesis, Site-Directed
2016/5/25
The absorption spectra of a series of inhibitors bound at the active site of Delta(5)-3-ketosteroid isomerase from Pseudomonas putida were found to exhibit substantial variations in the contributions ...
Green Fluorescent Protein Variants as Ratiometric Dual Emission pH Sensors.3.Temperature Dependence of Proton Transfer
Green Fluorescent Proteins Amino Acid Substitution Spectrometry, Fluorescence Kinetics Mutagenesis,Site-Directed Models,Theoretical Genetic Variation Hydrogen-Ion Concentration Thermodynamics Solvents
2016/5/24
In parts 1 and 2 of this series [Hanson, G. T., McAnaney, T. B., Park, E. S., Rendell, M. E. P., Yarbrough, D. K., Chu, S. Y., Xi, L. X., Boxer, S. G., Montrose, M. H., and Remington, S. J. (2002) Bio...
Ultra-fast Excited State Dynamics in Green Fluorescent Protein:Multiple States and Proton Transfer
Protons Luminescent Proteins Green Fluorescent Proteins Recombinant Proteins Spectrometry, Fluorescence Temperature Amino Acid Sequence Protein Conformation Structure-Activity Relationship Oxidation-Reduction
2016/5/23
The green fluorescent protein (GFP) of the jellyfish Aequorea Victoria has attracted widespread interest since the discovery that its chromophore is generated by the autocatalytic, posttranslational c...
Ligand and Proton Exchange Dynamics in Recombinant Human Myoglobin Mutants
Mb myoglobin n.m.r. nuclear magnetic resonance fwhm full width at half maximum TSP sodium 3-trimethyl silyl propionate DSS 4,4-dimethyl-4-sila pentane-1-sulfonate
2016/5/20
Site-specific mutants of human myoglobin have been prepared in which lysine 45 is replaced by arginine (K45R) and aspartate 60 by glutamate (D60E), in order to examine the influence of these residues ...
Proton-conducting material found in electrosensory organs of sharks
Proton-conducting material electrosensory organs sharks
2016/5/19
Sharks, skates, and rays can detect very weak electric fields produced by prey and other animals using an array of unusual organs known as the ampullae of Lorenzini. Exactly how these electrosensory o...
Higher order polarizabilities of the proton
Compton scattering protons high order polarization quark model
2014/12/22
Compton scattering results are used to probe proton structure via measurement of higher order polarizabilities. Values for αE2p, βE2p, αEνp, and βEνp determined via dispersion relations ar...
Measuring Proton Spin Polarizabilities with Polarized Compton Scattering
Compton Polarizabilities
2014/11/20
Polarized nuclear Compton scattering on a proton target provides a test of low energy QCD. The beam-target asymmetries of a circularly polarized Bremsstrahlung photon beam on a transversely polarized ...
Charge Transport Studies of Proton and Ion Conducting Materials
charge transport impedance spectroscopy ionic conductor PEM PFG-NMR proton conductor
2014/11/20
The development of a high-throughput impedance spectroscopy instrumentation platform for conductivity characterization of ion transport materials is outlined. Collaborative studies using this system a...
Clustering, Reorientation Dynamics, and Proton Transfer In Glassy Oligomeric Solids
imidazole proton transfer reorientation
2014/11/20
We have modelled structures and dynamics of hydrogen bond networks that form from imidazoles tethered to oligomeric aliphatic backbones in crystalline and glassy phases. We have studied the behavior o...
Understanding Hard Interaction in QCD and the Search for the Gluon Spin Contribution to the Spin of the Proton
asymmetry hadron proton spin
2014/11/20
In the following discourse unpolarized cross sections and double helicity asymmetries of single inclusive positive and negative charged hadrons at mid-rapidity from p + p collisions at p s = 62:4 GeV ...