The present invention provides techniques for managing a multi-tenant database system. The apparatus includes a parser module, a format module, and an output module. The optimal points of variation are identified by which atoms of a ligand bound to the common ligand site are identified to be proximal to the specificity ligand site. When opened, a series of \u201cS\u201d-shaped grooves along with one that is straight and routed through the center of the case along the long dimension is visible.