6FZK:
reference: Induced conformational changes activate the peptidoglycan synthase PBP1B., Egan AJF, Maya-Martinez R, Ayala I, Bougault CM, Banzhaf M, Breukink E, Vollmer W, Simorre JP, Mol Microbiol. 2018 Jul 25. doi: 10.1111/mmi.14082. PMID: 30044025

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