3NCT:
reference: X-ray crystal structure of the bacterial conjugation factor PsiB, a negative regulator of RecA., Petrova V, Satyshur KA, George NP, McCaslin D, Cox MM, Keck JL, J Biol Chem. 2010 Jul 21. PMID: 20659894

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