2VTB:
reference: Recognition and repair of UV lesions in loop structures of duplex DNA by DASH-type cryptochrome., Pokorny R, Klar T, Hennecke U, Carell T, Batschauer A, Essen LO, Proc Natl Acad Sci U S A. 2008 Dec 30;105(52):21023-7. Epub 2008 Dec 12. PMID: 19074258

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