6JJH:
reference: Native de novo structural determinations of non-canonical nucleic acid motifs by X-ray crystallography at long wavelengths., Zhang Y, El Omari K, Duman R, Liu S, Haider S, Wagner A, Parkinson GN, Wei D, Nucleic Acids Res. 2020 May 26. pii: 5846030. doi: 10.1093/nar/gkaa439. PMID: 32453431

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