Au, C.K., Cai, Y., Zheng, J., & Woo, T. (2010). Orienting a protein model by crossing number to generate the characteristic views for identification. Computer Modeling in Engineering & Sciences, 68(3), 221-237.
Permanent Research Commons link: http://hdl.handle.net/10289/7346
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.
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