Subscript	Description
hb	Interactions between hydrogen bond donor–acceptor pairs. An optimistic view is taken; for example, two hydroxyl groups are assumed to interact in the most favorable way
ion	Ionic interactions. A Coulomb-like term is used to evaluate the interactions between charged groups. This can contribute to or detract from binding affinity
mlig	Metal ligation. Interactions between nitrogens/sulfurs and transition metals are assumed to be metal ligation interactions
hh	Hydrophobic interactions, for example, between alkane carbons. These interactions are generally favorable
hp	Interactions between hydrophobic and polar atoms. These interactions are generally unfavorable
aa	An interaction between any two atoms. This interaction is weak and generally favorable