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(a) and (d) Binding preference for WW domain toward PRM and Gd@C82(OH)22. (b) and (e) Binding preference for PRM toward WW domain and Gd@C82(OH)22. (c) and (f) Binding preference of Gd@C82(OH)22 toward WW domain and PRM. The contact areas were used for panel (a), (b) and (c) and the centre-of-mass distances for panel (d), (e) & (f).
