6IF9:
reference: Structure of G57W mutant of human gammaS-crystallin and its involvement in cataract formation., Bari KJ, Sharma S, Chary KVR, J Struct Biol. 2019 Mar 1;205(3):72-78. doi: 10.1016/j.jsb.2019.02.003. Epub 2019, Feb 12. PMID: 30769148

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