1LMP:
reference: Crystal structures of three complexes between chito-oligosaccharides and lysozyme from the rainbow trout. How distorted is the NAG sugar in site D?, Karlsen S, Hough E, Acta Crystallogr D Biol Crystallogr. 1995 Nov 1;51(Pt 6):962-78. PMID: 15299765

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