Extended phases & beheaded phrases Comments on Marcel den Dikken's ‘Phase Extension’

2007 ◽  
Vol 33 (1) ◽  
Author(s):  
Hubert Haider
Keyword(s):  
Phase Extension

The use of low-resolution phasing followed by phase extension from 7.6 to 2.5 Å resolution with noncrystallographic symmetry to solve the structure of a bacteriophage capsid protein

2011 ◽  
Vol 67 (3) ◽  
pp. 228-232 ◽  
Author(s):  
Nicola G. A. Abrescia ◽  
Jonathan M. Grimes ◽  
Hanna M. Oksanen ◽  
Jaana K. H. Bamford ◽  
Dennis H. Bamford ◽  
...  
Keyword(s):  
Capsid Protein ◽  
Low Resolution ◽  
Phase Extension

scholarly journals Large time behavior of a two phase extension of the porous medium equation

2019 ◽  
Vol 21 (2) ◽  
pp. 199-229 ◽  
Author(s):  
Ahmed Ait Hammou Oulhaj ◽  
Clément Cancès ◽  
Claire Chainais-Hillairet ◽  
Philippe Laurençot
Keyword(s):  
Porous Medium ◽  
Large Time ◽  
Porous Medium Equation ◽  
Large Time Behavior ◽  
Time Behavior ◽  
Two Phase ◽  
Medium Equation ◽  
Phase Extension

Low-resolution phase extension and refinement by maximum entropy

1988 ◽  
Vol 44 (4) ◽  
pp. 545-551 ◽  
Author(s):  
A. D. Podjarny ◽  
D. Moras ◽  
J. Navaza ◽  
P. M. Alzari
Keyword(s):  
Maximum Entropy ◽  
Low Resolution ◽  
Phase Extension

scholarly journals CrystTwiV: a webserver for automated phase extension and refinement in X-ray crystallography

2007 ◽  
Vol 35 (Web Server) ◽  
pp. W718-W722 ◽  
Author(s):  
T. Thireou ◽  
V. Atlamazoglou ◽  
M. Levakis ◽  
E. Eliopoulos ◽  
A. Hountas ◽  
...  
Keyword(s):  
X Ray ◽  
X Ray Crystallography ◽  
Phase Extension

scholarly journals From lows to highs: using low-resolution models to phase X-ray data

2013 ◽  
Vol 69 (11) ◽  
pp. 2257-2265 ◽  
Author(s):  
David I. Stuart ◽  
Nicola G. A. Abrescia
Keyword(s):  
Structural Biology ◽  
General Concept ◽  
Molecular Replacement ◽  
X Ray ◽  
X Ray Crystallography ◽  
X Ray Scattering ◽  
Phase Extension ◽  
Intact Virus ◽  
Structural Methods

The study of virus structures has contributed to methodological advances in structural biology that are generally applicable (molecular replacement and noncrystallographic symmetry are just two of the best known examples). Moreover, structural virology has been instrumental in forging the more general concept of exploiting phase information derived from multiple structural techniques. This hybridization of structural methods, primarily electron microscopy (EM) and X-ray crystallography, but also small-angle X-ray scattering (SAXS) and nuclear magnetic resonance (NMR) spectroscopy, is central to integrative structural biology. Here, the interplay of X-ray crystallography and EM is illustrated through the example of the structural determination of the marine lipid-containing bacteriophage PM2. Molecular replacement starting from an ∼13 Å cryo-EM reconstruction, followed by cycling density averaging, phase extension and solvent flattening, gave the X-ray structure of the intact virus at 7 Å resolution This in turn served as a bridge to phase, to 2.5 Å resolution, data from twinned crystals of the major coat protein (P2), ultimately yielding a quasi-atomic model of the particle, which provided significant insights into virus evolution and viral membrane biogenesis.

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