期刊
BIOINFORMATICS
卷 27, 期 16, 页码 2209-2215出版社
OXFORD UNIV PRESS
DOI: 10.1093/bioinformatics/btr374
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资金
- American Heart Association [09PRE2090068]
- University of North Carolina Research Council
- National Institutes of Health [R01GM080742, GM080742-03S1, GM066940-06S1]
Motivation: Increasing use of structural modeling for understanding structure-function relationships in proteins has led to the need to ensure that the protein models being used are of acceptable quality. Quality of a given protein structure can be assessed by comparing various intrinsic structural properties of the protein to those observed in high-resolution protein structures. Results: In this study, we present tools to compare a given structure to high-resolution crystal structures. We assess packing by calculating the total void volume, the percentage of unsatisfied hydrogen bonds, the number of steric clashes and the scaling of the accessible surface area. We assess covalent geometry by determining bond lengths, angles, dihedrals and rotamers. The statistical parameters for the above measures, obtained from high-resolution crystal structures enable us to provide a quality-score that points to specific areas where a given protein structural model needs improvement.
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