TY  - EJOU
AU  - Au, Chikit 
AU  - Cai, Yiyu 
AU  - Zheng, Jianmin 
AU  - Woo, Tony 

TI  - Orienting a Protein Model by Crossing Number to Generate the Characteristic Views for Identification
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2010
VL  - 68
IS  - 3
SN  - 1526-1506

AB  - A protein model (such as a ribbon model) can be created from the atomic coordinates in the protein data base files. These coordinates are obtained by X-ray crystallography or NMR spectroscopy with the protein arbitrarily oriented.
As such, identifying or comparing a novel structure with a known item using protein model in the protein data base can be a timely process since a large number of transformations may be involved. The identification efficiency will be improved if the protein models are uniformly oriented. This paper presents an approach to orient a protein model to generate the characteristic views with minimum and maximum crossings respectively. The projection directions for these characteristic views are determined by a set of crossing maps (C-maps). Re-orientating the protein models in the protein data base to two characteristic views will facilitate the process of identification.
KW  - Characteristic views
KW  -  crossing
KW  -  projection
KW  -  C-map
KW  -  spherical polygons

DO  - 10.3970/cmes.2010.068.221