1Z5T:
reference: Structure of B-DNA with cations tethered in the major groove., Moulaei T, Maehigashi T, Lountos GT, Komeda S, Watkins D, Stone MP, Marky LA, Li JS, Gold B, Williams LD, Biochemistry 2005 May 24;44(20):7458-68. PMID: 15895989

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