1USG: L-Leucine-Binding Protein, Apo Form
reference: X-ray structures of the leucine-binding protein illustrate conformational changes and the basis of ligand specificity., Magnusson U, Salopek-Sondi B, Luck LA, Mowbray SL, J Biol Chem 2004 Mar 5;279(10):8747-52. Epub 2003 Dec 12. PMID: 14672931

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