1UC2:
reference: Crystal structure of an RtcB homolog protein (PH1602-extein protein) from Pyrococcus horikoshii reveals a novel fold., Okada C, Maegawa Y, Yao M, Tanaka I, Proteins. 2006 Jun 1;63(4):1119-22. PMID: 16485279

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