1A3Q:
reference: Structure of the human NF-kappaB p52 homodimer-DNA complex at 2.1 A resolution., Cramer P, Larson CJ, Verdine GL, Muller CW, EMBO J 1997 Dec 1;16(23):7078-90. PMID: 9384586

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