Figure 1.

Illustration of the hierarchical charge partitioning (HCP) of biomolecular structures. In this illustration a biomolecular structure is partitioned into multiple hierarchical levels components based on the natural organization of biomolecules. The charge distribution of distant components are approximated by a small number of charges, while nearby atoms are treated exactly.

Daga and Feng BMC Bioinformatics 2012 13(Suppl 5):S4   doi:10.1186/1471-2105-13-S5-S4