Figure 1From: Protein-protein binding site identification by enumerating the configurationsSteps to obtain a transformation. (1) put a i at one of the O( ( 1 ε ) 3 ) grid points d-ball of b i′ . (2) put a j at a grid point on the intersection of the sphere centered at a i with radius |a i a j | and d-ball of b j′ . There are at most O( ( 1 ε ) 2 ) grid points on the intersection. (3) use a i and a j as the rotation axis.Back to article page