5XVR:
reference: Structural basis of protein arginine rhamnosylation by glycosyltransferase EarP., Sengoku T, Suzuki T, Dohmae N, Watanabe C, Honma T, Hikida Y, Yamaguchi Y, Takahashi H, Yokoyama S, Yanagisawa T, Nat Chem Biol. 2018 Feb 13. pii: 10.1038/s41589-018-0002-y. doi:, 10.1038/s41589-018-0002-y. PMID: 29440735

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