1EU8:
reference: The crystal structure of a liganded trehalose/maltose-binding protein from the hyperthermophilic Archaeon Thermococcus litoralis at 1.85 A., Diez J, Diederichs K, Greller G, Horlacher R, Boos W, Welte W, J Mol Biol 2001 Jan 26;305(4):905-15. PMID: 11162101

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