3R1L: Crystal Structure Of The Class I Ligase Ribozyme-Substrate P Complex, C47u Mutant, Mg2+ Bound
reference: The structural basis of RNA-catalyzed RNA polymerization., Shechner DM, Bartel DP, Nat Struct Mol Biol. 2011 Aug 21;18(9):1036-42. doi: 10.1038/nsmb.2107. PMID: 21857665

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