4DCM:
reference: Structural insights into the function of 23S rRNA methyltransferase RlmG (m2G1835) from Escherichia coli., Zhang H, Gao ZQ, Wei Y, Wang WJ, Liu GF, Shtykova EV, Xu JH, Dong YH, RNA. 2012 Aug;18(8):1500-9. Epub 2012 Jul 2. PMID: 22753782

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