Abstract
Every drug discovery research program involves synthesis of a novel and potential drug molecule utilizing atom efficient, economical and environment friendly synthetic strategies. The current work focuses on the role of the reactivity based fingerprints of compounds as filters for virtual screening using a tool ChemScore. A reactant-like (RLS) and a product- like (PLS) score can be predicted for a given compound using the binary fingerprints derived from the numerous known organic reactions which capture the molecule-molecule interactions in the form of addition, substitution, rearrangement, elimination and isomerization reactions. The reaction fingerprints were applied to large databases in biology and chemistry, namely ChEMBL, KEGG, HMDB, DSSTox, and the Drug Bank database. A large network of 1113 synthetic reactions was constructed to visualize and ascertain the reactant product mappings in the chemical reaction space. The cumulative reaction fingerprints were computed for 4000 molecules belonging to 29 therapeutic classes of compounds, and these were found capable of discriminating between the cognition disorder related and anti-allergy compounds with reasonable accuracy of 75% and AUC 0.8. In this study, the transition state based fingerprints were also developed and used effectively for virtual screening in drug related databases. The methodology presented here provides an efficient handle for the rapid scoring of molecular libraries for virtual screening.
Keywords: Fingerprints, intermediates, metabolic pathways, product-like score, reactant-like score, reaction, screening, synthesis, virtual screening.
Combinatorial Chemistry & High Throughput Screening
Title:Role of Chemical Reactivity and Transition State Modeling for Virtual Screening
Volume: 18 Issue: 7
Author(s): Muthukumarasamy Karthikeyan, Renu Vyas, Sanjeev S. Tambe, Deepthi Radhamohan and Bhaskar D. Kulkarni
Affiliation:
Keywords: Fingerprints, intermediates, metabolic pathways, product-like score, reactant-like score, reaction, screening, synthesis, virtual screening.
Abstract: Every drug discovery research program involves synthesis of a novel and potential drug molecule utilizing atom efficient, economical and environment friendly synthetic strategies. The current work focuses on the role of the reactivity based fingerprints of compounds as filters for virtual screening using a tool ChemScore. A reactant-like (RLS) and a product- like (PLS) score can be predicted for a given compound using the binary fingerprints derived from the numerous known organic reactions which capture the molecule-molecule interactions in the form of addition, substitution, rearrangement, elimination and isomerization reactions. The reaction fingerprints were applied to large databases in biology and chemistry, namely ChEMBL, KEGG, HMDB, DSSTox, and the Drug Bank database. A large network of 1113 synthetic reactions was constructed to visualize and ascertain the reactant product mappings in the chemical reaction space. The cumulative reaction fingerprints were computed for 4000 molecules belonging to 29 therapeutic classes of compounds, and these were found capable of discriminating between the cognition disorder related and anti-allergy compounds with reasonable accuracy of 75% and AUC 0.8. In this study, the transition state based fingerprints were also developed and used effectively for virtual screening in drug related databases. The methodology presented here provides an efficient handle for the rapid scoring of molecular libraries for virtual screening.
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Cite this article as:
Karthikeyan Muthukumarasamy, Vyas Renu, S. Tambe Sanjeev, Radhamohan Deepthi and D. Kulkarni Bhaskar, Role of Chemical Reactivity and Transition State Modeling for Virtual Screening, Combinatorial Chemistry & High Throughput Screening 2015; 18 (7) . https://dx.doi.org/10.2174/1386207318666150703113135
DOI https://dx.doi.org/10.2174/1386207318666150703113135 |
Print ISSN 1386-2073 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5402 |
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