2ZNF:
reference: High-resolution structure of an HIV zinc fingerlike domain via a new NMR-based distance geometry approach., Summers MF, South TL, Kim B, Hare DR, Biochemistry 1990 Jan 16;29(2):329-40. PMID: 2105740

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