1OFX:
reference: Crystal structure of an Okazaki fragment at 2-A resolution., Egli M, Usman N, Zhang SG, Rich A, Proc Natl Acad Sci U S A 1992 Jan 15;89(2):534-8. PMID: 1370582

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