195D:
reference: X-ray structures of the B-DNA dodecamer d(CGCGTTAACGCG) with an inverted central tetranucleotide and its netropsin complex., Balendiran K, Rao ST, Sekharudu CY, Zon G, Sundaralingam M, Acta Crystallogr D Biol Crystallogr. 1995 Mar 1;51(Pt 2):190-8. PMID: 15299320

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