4PJ3:
reference: The RNA helicase Aquarius exhibits structural adaptations mediating its recruitment to spliceosomes., De I, Bessonov S, Hofele R, Dos Santos K, Will CL, Urlaub H, Luhrmann R, Pena V, Nat Struct Mol Biol. 2015 Feb;22(2):138-44. doi: 10.1038/nsmb.2951. Epub 2015 Jan, 19. PMID: 25599396

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