6A7Y:
reference: NMR solution structure of an asymmetric intermolecular leaped V-shape G-quadruplex: selective recognition of the d(G2NG3NG4) sequence motif by a short linear G-rich DNA probe., Wan C, Fu W, Jing H, Zhang N, Nucleic Acids Res. 2018 Nov 16. pii: 5184730. doi: 10.1093/nar/gky1167. PMID: 30445650

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