| 2F1F: reference: Structure of the Regulatory Subunit of Acetohydroxyacid Synthase Isozyme III from Escherichia coli., Kaplun A, Vyazmensky M, Zherdev Y, Belenky I, Slutzker A, Mendel S, Barak Z, Chipman DM, Shaanan B, J Mol Biol. 2006 Mar 31;357(3):951-63. Epub 2006 Jan 18. PMID: 16458324 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).