Browse > Article

Molecular Interaction Interface Computing Based on Voxel Map  

Choi, Jihoon (Graduate School of EECS, Kyungpook National University)
Kim, Byungjoo (Graduate School of Electronics, Kyungpook National University)
Kim, Ku-jin (School of Computer Science & Engineering, Kyungpook National)
Abstract
In this paper, we propose a method to compute the interface between protein molecules. When a molecules is represented as a set of spheres with van der Waals radii, the distance from a spatial point p to the molecule corresponds to the distance from p to the closet sphere. The molecular interface is composed of equi-distant points from two molecules. Our algorithm decomposes the space into a set of voxels, and then constructs a voxel map by storing the information of spheres intersecting each voxel. By using the voxel map, we compute the distance between a point and the molecule. We also use GPU for the parallel processing, and efficiently approximate the interface of a pair of molecules.
Keywords
protein molecule; voxel map; molecular interface; GPU;
Citations & Related Records
연도 인용수 순위
  • Reference
1 W. E. Lorensen, H. E. Cline, Marching Cubes: A high resolution 3D surface construction algorithm, Computer Graphics 21 (4) (1987) 163-169.   DOI
2 M. Petrek, M. Otyepka, P. Banas, P. Kosinova,J. Koca, CAVER: a new tool to explore routes from protein clefts, pockets and cavities, BMC Bioinformatics 7 (2006) 316.   DOI
3 C. Bajaj, R. A. Chowdhury, M. Rasheed, A dynamic data structure for flexible molecular maintenance and informatics, Proceedings of SIAM/ACM Joint Conference on Geometric and Physical Modeling (2009).
4 D. Levine, M. Facello, P. Hallstrom, G. Reeder, B. Walenz, F. Stevens, Stalk: an interactive system for virtual molecular docking,
5 H. Nagata, H. Mizushima, H. Tanaka, Concept and prototype of protein-ligand docking simulator with force feedback technology, Bioinformatics 18 (1) (2002) 140-146.   DOI
6 S. K. Lai-Yuen, Y. S. Lee, Interactive computer-aided design for molecular docking and assembly, Computer-Aided Design and Applications 3 (6) (2006) 701-709.
7 N. Ray, X. Cavin, J. C. Paul, B. Maigret, Intersurf: dynamic interface between proteins, Journal of Molecular Graphics and Modelling23 (4) (2005) 347-354.   DOI
8 W. Humphrey, A. Dalk:e, K. Schulten, VMD: visual molecular dynamics, Journal of Molecular Graphics and Modelling 14 (1996) 33-38.   DOI
9 S. Gong, G. Yoon, I. Jang, D. Bolser, P. Dafas, M. Schroeder, H. Choi, Y. Cho, K. Han, S. Lee, H. Choi, M. Lappe, L. Holm, S. Kim, D. Oh, J. Bhak, PSIBASE: A database of protein structural interactome map (psimap), Bioinformatics 21 (10) (2005) 2541-2543.
10 J. Seong, N. Baek, K. Kim, Real-time computation of molecular interaction interfaces, Computer-Aided Design 43 (12) (2011) 1598-1605.   DOI