3IRQ:
reference: Crystal structure of a junction between two Z-DNA helices., de Rosa M, de Sanctis D, Rosario AL, Archer M, Rich A, Athanasiadis A, Carrondo MA, Proc Natl Acad Sci U S A. 2010 May 3. PMID: 20439751

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).