Title
Uniqueness for ab initio phase retrieval in macromolecular X-ray crystallography
Abstract
Protein X-ray crystallography, the determination of three-dimensional structures of protein molecules from crystal X-ray diffraction data, requires determining the phases of the diffraction signal, since only the amplitude is measured. This so-called phase problem is a key component of protein X-ray crystallography. Most current methods for phasing are experimentally based and utilise either additional diffraction data from modified crystals or knowledge of the structure of a related protein. Ab initio phasing refers to computational methods that utilise only the measured diffraction amplitudes and some a priori information on protein electron densities, and potentially offer a dramatic reduction in effort over experimental methods. A key question in ab initio phasing is whether the diffraction amplitudes and the a priori information are sufficient to uniquely define the phases. The question of uniqueness is examined here for the case of a priori information on the molecular envelope.
Year
DOI
Venue
2015
10.1109/IVCNZ.2015.7761511
2015 International Conference on Image and Vision Computing New Zealand (IVCNZ)
Keywords
Field
DocType
ab initio phase retrieval,macromolecular X-ray crystallography,protein X-ray crystallography,3D protein molecule structure,crystal X-ray diffraction data,diffraction signal amplitude,phase problem,ab initio phasing,protein electron density,molecular envelope
Uniqueness,Chemical physics,X-ray crystallography,Phase retrieval,Pattern recognition,Computer science,Phase problem,Crystal,Phaser,Artificial intelligence,Ab initio,Diffraction
Conference
ISSN
ISBN
Citations 
2151-2191
978-1-5090-0358-7
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Romain D. Arnal100.68
Rick P. Millane244.83