3DXL:
reference: Multifunctionality and mechanism of ligand binding in a mosquito antiinflammatory protein., Calvo E, Mans BJ, Ribeiro JM, Andersen JF, Proc Natl Acad Sci U S A. 2009 Mar 10;106(10):3728-33. Epub 2009 Feb 20. PMID: 19234127

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