The E-State as the Basis for Molecular Structure Space Definition and Structure Similarity

Autor: H. Hall, Lowell, B. Kier, Lemont
Zdroj: Journal of Chemical Information and Modeling; May 2000, Vol. 40 Issue: 3 p784-791, 8p
Abstrakt: The electrotopological state (E-state) is presented as a representation of molecular structure useful for definition of a space for chemical structures. This E-state representation provides the basis for chemical database management. The E-state formalism is presented along with its extension to the atom-type E-state. An approach to database organization, using polychlorobiphenyls (PCBs) as examples, reveals the descriptive power of the E-state paradigm. A well-organized chemical database, as described here, may be searched to find structures similar to a target structure with the expectation that such structures may exhibit properties similar to the target. Searches using the atom-type E-state indices are demonstrated with two example drug molecules.
Databáze: Supplemental Index