3BBD:
reference: The crystal structure of Nep1 reveals an extended SPOUT-class methyltransferase fold and a pre-organized SAM-binding site., Taylor AB, Meyer B, Leal BZ, Kotter P, Schirf V, Demeler B, Hart PJ, Entian KD, Wohnert J, Nucleic Acids Res. 2008 Mar;36(5):1542-54. Epub 2008 Jan 21. PMID: 18208838

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