3U2N:
reference: Small-molecule binding to the DNA minor groove is mediated by a conserved water cluster., Wei D, Wilson WD, Neidle S, J Am Chem Soc. 2013 Jan 30;135(4):1369-77. doi: 10.1021/ja308952y. Epub 2013 Jan , 16. PMID: 23276263

This OCA Structure page
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