| 2MWZ: reference: Xanthine and 8-oxoguanine in G-quadruplexes: formation of a G.G.X.O tetrad., Cheong VV, Heddi B, Lech CJ, Phan AT, Nucleic Acids Res. 2015 Sep 22. pii: gkv826. PMID: 26400177 |
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