4JGF:
reference: Crystal structure of the cataract-causing P23T gammaD-crystallin mutant., Ji F, Koharudin LM, Jung J, Gronenborn AM, Proteins. 2013 May 13. doi: 10.1002/prot.24321. PMID: 23670788

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