Papers › Graph Nets for Partial Charge Prediction

Graph Nets for Partial Charge Prediction

17 Sep 2019arXiv:1909.07903archive 2025-07-28

Yuanqing Wang, Josh Fass, Chaya D. Stern, Kun Luo, John Chodera

Atomic partial charges are crucial parameters for Molecular Dynamics (MD) simulations, molecular mechanics calculations, and virtual screening, as they determine the electrostatic contributions to interaction energies. Current methods for calculating partial charges, however, are either slow and scale poorly with molecular size (quantum chemical methods) or unreliable (empirical methods). Here, we present a new charge derivation method based on Graph Nets---a set of update and aggregate functions that operate on molecular topologies and propagate information thereon---that could approximate charges derived from Density Functional Theory (DFT) calculations with high accuracy and an over 500-fold speed up.

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