Two interfaces derived from the PDB entry 1UBY. (a) The used dimer structure in the Bahadur dataset which is derived by a computational tool with regard to the biomolecule 2 of REMARK 350 in 1UBY; (b) the dimer structure determined by the authors of 1UBY. The original B factors in 1UBY are ranged between 13.22 and 83.45 according to Equation 1. The colors from blue to white and to red indicate B factors from small to large. The structures are shown in the surface view. The regions without any surface view are the binding sites on chain A. The binding sites on chain B are not shown due to the symmetry of the interfaces.