1C4O:
reference: Crystal structure of the DNA nucleotide excision repair enzyme UvrB from Thermus thermophilus., Machius M, Henry L, Palnitkar M, Deisenhofer J, Proc Natl Acad Sci U S A 1999 Oct 12;96(21):11717-22. PMID: 10518516

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