3UVU:
reference: Structural basis of nuclear import of flap endonuclease 1 (FEN1)., de Barros AC, Takeda AA, Chang CW, Kobe B, Fontes MR, Acta Crystallogr D Biol Crystallogr. 2012 Jul;68(Pt 7):743-50. doi:, 10.1107/S0907444912010281. Epub 2012 Jun 15. PMID: 22751659

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