1S29:
reference: Structure of the La motif: a winged helix domain mediates RNA binding via a conserved aromatic patch., Dong G, Chakshusmathi G, Wolin SL, Reinisch KM, EMBO J 2004 Mar 10;23(5):1000-7. Epub 2004 Feb 19. PMID: 14976553

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