6ZIG:
reference: Structural Insights into Lactococcal Siphophage p2 Baseplate Activation Mechanism., Spinelli S, Tremblay D, Moineau S, Cambillau C, Goulet A, Viruses. 2020 Aug 11;12(8). pii: v12080878. doi: 10.3390/v12080878. PMID: 32796652

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