3F3P:
reference: A fence-like coat for the nuclear pore membrane., Debler EW, Ma Y, Seo HS, Hsia KC, Noriega TR, Blobel G, Hoelz A, Mol Cell. 2008 Dec 26;32(6):815-26. PMID: 19111661

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