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Structure of the SF1NTD and U2AF65UHM complex. (A) Ribbon representation of the ensemble of the 10 lowest energy structures and surface representation coloured according to electrostatic surface potential at 3 kT/e for positive (blue) or negative (red) charge potential using the program APBS (36). (B) Close-up view of SF1NTD–U2AF65UHM complex interface. Side chains of key residues mediating the interactions between the α-helices and the N/C-termini are shown as sticks.
