161D:
reference: A single 2'-hydroxyl group converts B-DNA to A-DNA. Crystal structure of the DNA-RNA chimeric decamer duplex d(CCGGC)r(G)d(CCGG) with a novel intermolecular G-C base-paired quadruplet., Ban C, Ramakrishnan B, Sundaralingam M, J Mol Biol 1994 Feb 11;236(1):275-85. PMID: 7508984

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