1A1I:
reference: High-resolution structures of variant Zif268-DNA complexes: implications for understanding zinc finger-DNA recognition., Elrod-Erickson M, Benson TE, Pabo CO, Structure 1998 Apr 15;6(4):451-64. PMID: 9562555

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