4MHC:
reference: Structure and nucleic acid binding activity of the nucleoporin Nup157., Seo HS, Blus BJ, Jankovic NZ, Blobel G, Proc Natl Acad Sci U S A. 2013 Oct 8;110(41):16450-16455. Epub 2013 Sep 23. PMID: 24062435

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