Density-Based Clustering of Small Peptide Conformations Sampled from a Molecular Dynamics Simulation
- Authors
- Kim, Minkyoung; Choi, Seung-Hoon; Kim, Junhyoung; Choi, Kihang; Shin, Jae-Min; Kang, Sang-Kee; Choi, Yun-Jaie; Jung, Dong Hyun
- Issue Date
- 11월-2009
- Publisher
- AMER CHEMICAL SOC
- Citation
- JOURNAL OF CHEMICAL INFORMATION AND MODELING, v.49, no.11, pp.2528 - 2536
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF CHEMICAL INFORMATION AND MODELING
- Volume
- 49
- Number
- 11
- Start Page
- 2528
- End Page
- 2536
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/118967
- DOI
- 10.1021/ci800434e
- ISSN
- 1549-9596
- Abstract
- This study describes the application of a density-based algorithm to clustering small peptide conformations after a molecular dynamics simulation. We propose a clustering method for small peptide conformations that enables adjacent clusters to be separated more clearly on the basis of neighbor density. Neighbor density means the number of neighboring conformations, so if a conformation has too few neighboring conformations, then it is considered as noise or an outlier and is excluded from the list of cluster members. With this approach, we can easily identify clusters in which the members are densely crowded in the conformational space, and we can safely avoid misclustering individual clusters linked by noise or outliers. Consideration of neighbor density significantly improves the efficiency of clustering of small peptide conformations sampled from molecular dynamics Simulations and can be used for predicting peptide structures.
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