Number of water molecules close to a residue in a folded state (W(F))


This index counts the parametric number of water molecules surrounding a residue in a protein folded state.

Where means the number of water molecules associated to a polar residue, is a parameter that takes value one if a residue j if within 9.4 of residue i and cero otherwise, takes value one if the residue is superficial (i.e. its accessible surface area is different than cero) and cero otherwise.