scholarly journals MoD-QM/MM Structural Refinement Method: Characterization of Hydrogen Bonding in the Oxytricha nova G-Quadruplex

2014 ◽  
Vol 10 (11) ◽  
pp. 5125-5135 ◽  
Author(s):  
Junming Ho ◽  
Michael B. Newcomer ◽  
Christina M. Ragain ◽  
Jose A. Gascon ◽  
Enrique R. Batista ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Structural Refinement ◽  
Refinement Method ◽  
G Quadruplex ◽  
Oxytricha Nova

Characterization of Cordierite Glass with the Addition Colorant Ceramic Glaze for FIR Therapy

2016 ◽  
Vol 840 ◽  
pp. 207-212
Author(s):  
Lim Yi Xuan ◽  
Johar Banjuraizah ◽  
Zainal Arifin Ahmad
Keyword(s):  
High Hardness ◽  
Structural Refinement ◽  
X Ray Diffraction ◽  
Porosity Level ◽  
X Ray ◽  
Refinement Method ◽  
Cordierite Glass ◽  
Crystallization Of Glass ◽  
Rietveld Structural Refinement

α-Cordierite glass ceramic was synthesised through crystallization of glass compacts made of milled glass frits. The effect of temperatures and colorants were studied. The crystal structure of α-cordierite was analysed using X-ray diffraction technique and Rietveld structural refinement method. Density, porosity and shrinkage analysis, Vickers hardness and SEM were also performed. The result revealed that at higher sintering temperatures, the properties of α-cordierite was getting better. Low apparent porosity level and high hardness dense α-cordierite was fabricated at temperature 1350oC. The low porosity level may lead to high thermal conductivity which suggested that cordierite was candidates for FIR therapy instrumemts.________________________________________________________________________

scholarly journals Crystallization and characterization of the thallium form of the Oxytricha nova G-quadruplex

2006 ◽  
Vol 34 (16) ◽  
pp. 4506-4514 ◽  
Author(s):  
Michelle L. Gill ◽  
Scott A. Strobel ◽  
J. Patrick Loria
Keyword(s):  
G Quadruplex ◽  
Oxytricha Nova

scholarly journals DNA G-quadruplexes for native mass spectrometry in potassium: a database of validated structures in electrospray-compatible conditions

2021 ◽  
Author(s):  
Anirban Ghosh ◽  
Eric Largy ◽  
Valérie Gabelica
Keyword(s):  
Mass Spectrometry ◽  
Drug Targets ◽  
Native Mass Spectrometry ◽  
Drug Binding ◽  
Quadruplex Dna ◽  
Dna Structures ◽  
Nmr Structures ◽  
G Quadruplex ◽  
Screening Assays

Abstract G-quadruplex DNA structures have become attractive drug targets, and native mass spectrometry can provide detailed characterization of drug binding stoichiometry and affinity, potentially at high throughput. However, the G-quadruplex DNA polymorphism poses problems for interpreting ligand screening assays. In order to establish standardized MS-based screening assays, we studied 28 sequences with documented NMR structures in (usually ∼100 mM) potassium, and report here their circular dichroism (CD), melting temperature (Tm), NMR spectra and electrospray mass spectra in 1 mM KCl/100 mM trimethylammonium acetate. Based on these results, we make a short-list of sequences that adopt the same structure in the MS assay as reported by NMR, and provide recommendations on using them for MS-based assays. We also built an R-based open-source application to build and consult a database, wherein further sequences can be incorporated in the future. The application handles automatically most of the data processing, and allows generating custom figures and reports. The database is included in the g4dbr package (https://github.com/EricLarG4/g4dbr) and can be explored online (https://ericlarg4.github.io/G4_database.html).

A computational characterization of the hydrogen-bonding and stacking interactions of hypoxanthine

2007 ◽  
Vol 9 (4) ◽  
pp. 497-509 ◽  
Author(s):  
Lesley R. Rutledge ◽  
Craig A. Wheaton ◽  
Stacey D. Wetmore
Keyword(s):  
Hydrogen Bonding ◽  
Stacking Interactions

Characterization of Heme–DNA Complexes Composed of Some Chemically Modified Hemes and Parallel G-Quadruplex DNAs

Biochemistry ◽  
2015 ◽  
Vol 54 (49) ◽  
pp. 7168-7177 ◽  
Author(s):  
Yasuhiko Yamamoto ◽  
Masashi Kinoshita ◽  
Yuya Katahira ◽  
Haruna Shimizu ◽  
Yue Di ◽  
...  
Keyword(s):  
Dna Complexes ◽  
Chemically Modified ◽  
G Quadruplex

Hydrogen bonding. Part 29. Characterization of 14 sorbent coatings for chemical microsensors using a new solvation equation

1995 ◽  
pp. 369 ◽  
Author(s):  
Michael H. Abraham ◽  
Jenik Andonian-Haftvan ◽  
Chau My Du ◽  
Valerie Diart ◽  
Gary S. Whiting ◽  
...  
Keyword(s):  
Hydrogen Bonding
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