3ZPJ:
reference: Structure of the hypothetical protein Ton1535 from Thermococcus onnurineus NA1 reveals unique structural properties by a left-handed helical turn in normal alpha-solenoid protein., Jeong JH, Kim YS, Rojvirija C, Jin Cha H, Kim YG, Chul Ha S, Proteins. 2013 Nov 22. doi: 10.1002/prot.24444. PMID: 24265202

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