Automated Discovery of Active Motifs in Three Dimensional Molecules

Xiong Wang, Jason T.L. Wang, Dennis Shasha, Bruce Shapiro, Sitaram Dikshitulu, Isidore Rigoutsos, Kaizhong Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

17 Scopus citations

Abstract

In this paper we present a method for discovering approximately common motifs (also known as active motifs) in three dimensional (3D) molecules. Each node in a molecule is represented by a 3D point in the Euclidean Space and each edge is represented by an undirected line segment connecting two nodes in the molecule. Motifs are rigid substructures which may occur in a molecule after allowing for an arbitrary number of rotations and translations as well as a small number (specified by the user) of node insert/delete operations in the motifs or the molecule. (We call this "approximate occurrence.") The proposed method combines the geometric hashing technique and block detection algorithms for undirected graphs. To demonstrate the utility of our algorithms, we discuss their applications to classifying three families of molecules pertaining to antibacterial sulfa drugs, anti-anxiety agents (benzodiazepines) and antiadrenergic agents (β receptors). Experimental results indicate the good performance of our algorithms and the high quality of the discovered motifs.

Original languageEnglish (US)
Title of host publicationProceedings - 3rd International Conference on Knowledge Discovery and Data Mining, KDD 1997
EditorsDavid Heckerman, Heikki Mannila, Daryl Pregibon, Ramasamy Uthurusamy
PublisherAAAI press
Pages89-95
Number of pages7
ISBN (Electronic)1577350278, 9781577350279
StatePublished - 1997
Event3rd International Conference on Knowledge Discovery and Data Mining, KDD 1997 - Newport Beach, United States
Duration: Aug 14 1997Aug 17 1997

Publication series

NameProceedings - 3rd International Conference on Knowledge Discovery and Data Mining, KDD 1997

Conference

Conference3rd International Conference on Knowledge Discovery and Data Mining, KDD 1997
Country/TerritoryUnited States
CityNewport Beach
Period8/14/978/17/97

All Science Journal Classification (ASJC) codes

  • Software
  • Computer Science Applications

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