1QYP: Thermococcus Celer Rpb9, Nmr, 25 Structures
reference: High-resolution structure of an archaeal zinc ribbon defines a general architectural motif in eukaryotic RNA polymerases., Wang B, Jones DN, Kaine BP, Weiss MA, Structure 1998 May 15;6(5):555-69. PMID: 9634694

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