2VS1:
reference: The crystal structure of Pyrococcus abyssi tRNA (uracil-54, C5)-methyltransferase provides insights into its tRNA specificity., Walbott H, Leulliot N, Grosjean H, Golinelli-Pimpaneau B, Nucleic Acids Res. 2008 Jul 24. PMID: 18653523

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