Publication details

Atomic Charge Calculator II: web-based tool for the calculation of partial atomic charges

Authors

RAČEK Tomáš SCHINDLER Ondřej TOUŠEK Dominik HORSKÝ Vladimír BERKA Karel KOČA Jaroslav SVOBODOVÁ Radka

Year of publication 2020
Type Article in Periodical
Magazine / Source Nucleic acids research
MU Faculty or unit

Central European Institute of Technology

Citation
Web domovská stránka výsledku
Doi http://dx.doi.org/10.1093/nar/gkaa367
Keywords partial atomic charges; molecular structures; non-QM charge calculation methods; electrostatics; chemoinformatics
Attached files
Description Partial atomic charges serve as a simple model for the electrostatic distribution of a molecule that drives its interactions with its surroundings. Since partial atomic charges are frequently used in computational chemistry, chemoinformatics and bioinformatics, many computational approaches for calculating them have been introduced. The most applicable are fast and reasonably accurate empirical charge calculation approaches. Here, we introduce Atomic Charge Calculator II (ACC II), a web application that enables the calculation of partial atomic charges via all the main empirical approaches and for all types of molecules. ACC II implements 17 empirical charge calculation methods, including the highly cited (QEq, EEM), the recently published (EQeq, EQeq+C), and the old but still often used (PEOE). ACC II enables the fast calculation of charges even for large macromolecular structures. The web server also offers charge visualization, courtesy of the powerful LiteMol viewer. The calculation setup of ACC II is very straightforward and enables the quick calculation of high-quality partial charges. The application is available at https://acc2.ncbr.muni.cz.
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