4IPH:
reference: Surface Reengineering of RPA70N Enables Cocrystallization with an Inhibitor of the Replication Protein A Interaction Motif of ATR Interacting Protein., Feldkamp MD, Frank AO, Kennedy JP, Patrone JD, Vangamudi B, Waterson AG, Fesik SW, Chazin WJ, Biochemistry. 2013 Sep 6. PMID: 23962067

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