1VFF:
reference: X-ray structure of a membrane-bound beta-glycosidase from the hyperthermophilic archaeon Pyrococcus horikoshii., Akiba T, Nishio M, Matsui I, Harata K, Proteins 2004 Nov 1;57(2):422-31. PMID: 15340929

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