3LGR:
reference: A dipicolinate lanthanide complex for solving protein structures using anomalous diffraction., Pompidor G, Maury O, Vicat J, Kahn R, Acta Crystallogr D Biol Crystallogr. 2010 Jul;66(Pt 7):762-9. Epub 2010, Jun 19. PMID: 20606256

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