3TMW:
reference: Can radiation damage to protein crystals be reduced using small-molecule compounds?, Kmetko J, Warkentin M, Englich U, Thorne RE, Acta Crystallogr D Biol Crystallogr. 2011 Oct;67(Pt 10):881-93. Epub 2011 Sep 8. PMID: 21931220

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