5LSB:
reference: Crystal structure of U2 snRNP SF3b components: Hsh49p in complex with Cus1p binding domain., van Roon AA, Oubridge C, Obayashi E, Sposito B, Newman AJ, Seraphin B, Nagai K, RNA. 2017 Mar 27. pii: rna.059378.116. doi: 10.1261/rna.059378.116. PMID: 28348170

This OCA Structure page
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