1VYB:
reference: Crystal structure of the targeting endonuclease of the human LINE-1 retrotransposon., Weichenrieder O, Repanas K, Perrakis A, Structure. 2004 Jun;12(6):975-86. PMID: 15274918

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