1R6Z:
reference: The crystal structure of the Argonaute2 PAZ domain reveals an RNA binding motif in RNAi effector complexes., Song JJ, Liu J, Tolia NH, Schneiderman J, Smith SK, Martienssen RA, Hannon GJ, Joshua-Tor L, Nat Struct Biol 2003 Dec;10(12):1026-32. Epub 2003 Nov 16. PMID: 14625589

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