1K0H:
reference: The solution structure of the bacteriophage lambda head-tail joining protein, gpFII., Maxwell KL, Yee AA, Arrowsmith CH, Gold M, Davidson AR, J Mol Biol 2002 May 17;318(5):1395-404. PMID: 12083526

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