5H2X:
reference: Structures of the Karyopherins Kap121p and Kap60p Bound to the Nuclear Pore-Targeting Domain of the SUMO Protease Ulp1p., Hirano H, Kobayashi J, Matsuura Y, J Mol Biol. 2017 Jan 20;429(2):249-260. doi: 10.1016/j.jmb.2016.11.029. Epub 2016, Dec 6. PMID: 27939291

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