4BAS:
reference: Crystal structure of the small GTPase Arl6/BBS3 from Trypanosomabrucei., Hemsworth GR, Price HP, Smith DF, Wilson KS, Protein Sci. 2012 Nov 26. doi: 10.1002/pro.2198. PMID: 23184293

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