3J6Q:
reference: Identification of the active sites in the methyltransferases of a transcribing dsRNA virus., Zhu B, Yang C, Liu H, Cheng L, Song F, Zeng S, Huang X, Ji G, Zhu P, J Mol Biol. 2014 May 29;426(11):2167-74. doi: 10.1016/j.jmb.2014.03.013. Epub, 2014 Mar 30. PMID: 24690366

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