Comparison of interaction free energy of Ser-27 in streptavidin (SAV)-SBP complex (chain Y in 4jo6) with that of top five residues in SAV which are making the strongest interaction with the same SBP tag.

Chain Y of SBP only makes contact with subunits A and C in streptavidin.*The interaction free energy is expressed in terms of the MolDock score. SAV-SBP interaction free energy represents the total interaction free energy for the interactions between streptavidin (subunits A and C) with one of the bound SBP tags (chain Y).