Journal of Molecular Modeling

, Volume 16, Issue 5, pp 903–913

A fast protein-ligand docking algorithm based on hydrogen bond matching and surface shape complementarity

Original Paper

DOI: 10.1007/s00894-009-0598-7

Cite this article as:
Luo, W., Pei, J. & Zhu, Y. J Mol Model (2010) 16: 903. doi:10.1007/s00894-009-0598-7

Abstract

With the rapid development of structural determination of target proteins for human diseases, high throughout virtual screening based drug discovery is gaining popularity gradually. In this paper, a fast docking algorithm (H-DOCK) based on hydrogen bond matching and surface shape complementarity was developed. In H-DOCK, firstly a divide-and-conquer strategy based enumeration approach is applied to rank the intermolecular modes between protein and ligand by maximizing their hydrogen bonds matching, then each docked conformation of the ligand is calculated according to the matched hydrogen bonding geometry, finally a simple but effective scoring function reflecting mainly the van der Waals interaction is used to evaluate the docked conformations of the ligand. H-DOCK is tested for rigid ligand docking and flexible one, the latter is implemented by repeating rigid docking for multiple conformations of a small molecule and ranking all together. For rigid ligands, H-DOCK was tested on a set of 271 complexes where there is at least one intermolecular hydrogen bond, and H-DOCK achieved success rate (RMSD<2.0 Å) of 91.1%. For flexible ligands, H-DOCK was tested on another set of 93 complexes, where each case was a conformation ensemble containing native ligand conformation as well as 100 decoy ones generated by AutoDock [1], and the success rate reached 81.7%. The high success rate of H-DOCK indicates that the hydrogen bonding and steric hindrance can grasp the key interaction between protein and ligand. H-DOCK is quite efficient compared with the conventional docking algorithms, and it takes only about 0.14 seconds for a rigid ligand docking and about 8.25 seconds for a flexible one on average. According to the preliminary docking results, it implies that H-DOCK can be potentially used for large scale virtual screening as a pre-filter for a more accurate but less efficient docking algorithm.

Keywords

Combinatorial optimization Docking Hydrogen bond matching Virtual screening 

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  1. 1.Department of Chemical EngineeringTsinghua UniversityBeijingPeople′s Republic of China
  2. 2.State Key Laboratory for Structural Chemistry of Stable and Unstable Species, College of Chemistry and Molecular EngineeringPeking UniversityBeijingPeople′s Republic of China
  3. 3.Center for Theoretical BiologyPeking UniversityBeijingPeople′s Republic of China

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