4OCB:
reference: Phosphates in the Z-DNA dodecamer are flexible, but their P-SAD signal is sufficient for structure solution., Luo Z, Dauter M, Dauter Z, Acta Crystallogr D Biol Crystallogr. 2014 Jul;70(Pt 7):1790-800. doi:, 10.1107/S1399004714004684. Epub 2014 Jun 24. PMID: 25004957

This OCA Structure page
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