3NCU:
reference: Structural and functional insights into 5'-ppp RNA pattern recognition by the innate immune receptor RIG-I., Wang Y, Ludwig J, Schuberth C, Goldeck M, Schlee M, Li H, Juranek S, Sheng G, Micura R, Tuschl T, Hartmann G, Patel DJ, Nat Struct Mol Biol. 2010 Jul;17(7):781-7. Epub 2010 Jun 27. PMID: 20581823

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