1EXN:
reference: A helical arch allowing single-stranded DNA to thread through T5 5'-exonuclease., Ceska TA, Sayers JR, Stier G, Suck D, Nature 1996 Jul 4;382(6586):90-3. PMID: 8657312

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