2OEP:
reference: Snapshots of RecA protein involving movement of the C-domain and different conformations of the DNA-binding loops: crystallographic and comparative analysis of 11 structures of Mycobacterium smegmatis RecA., Krishna R, Prabu JR, Manjunath GP, Datta S, Chandra NR, Muniyappa K, Vijayan M, J Mol Biol. 2007 Apr 6;367(4):1130-44. Epub 2007 Jan 26. PMID: 17306300

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