Scatter plots of coarse-grained and all-atom Domain-Domain interaction energies clustered based on RMSD in the (a) A-N Interaction in E2P (1WPG) state, (b) A-P Interaction in E2P , (c) P-N Interaction in E2P , (d) A-N Interaction in E1P (2ZBD) state, (e) A-P Interaction in E1P, (f) P-N Interaction in E1P state.