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ZDOCK: An initial-stage protein-docking algorithm
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DOI：10.1002/prot.10389.png)
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The development of scoring functions is of great importance to protein docking. Here we present a new scoring function for the initial stage of unbound docking. It combines our recently developed pairwise shape complementarity with desolvation and electrostatics. We compare this scoring function with three other functions on a large benchmark of 49 nonredundant test cases and show its superior performance, especially for the antibody-antigen category of test cases. For 44 test cases (90% of the benchmark), we can retain at least one near-native structure within the top 2000 predictions at the 6degrees rotational sampling density, with an average of 52 near-native structures per test case. The remaining five difficult test cases can be explained by a combination of poor binding affinity, large backbone conformational changes, and our algorithm's strong tendency for identifying large concave binding pockets. All four scoring functions have been integrated into our Fast Fourier Transform based docking algorithm ZDOCK, which is freely available to academic users at http://zlab.bu.edu/similar torongtdock. (C) 2003 Wiley-Liss, Inc.
Keyword:
ZDOCK
protein docking
initial-stage docking
shape complementarity
pairwise shape complementarity
scoring function
binding free energy
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Proceedings of 1993 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS '93)
Proceedings of 1993 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS '93)IF0
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