6I0T:
reference: Structural basis for acceptor RNA substrate selectivity of the 3' terminal uridylyl transferase Tailor., Kroupova A, Ivascu A, Reimao-Pinto MM, Ameres SL, Jinek M, Nucleic Acids Res. 2018 Nov 20. pii: 5193338. doi: 10.1093/nar/gky1164. PMID: 30462292

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