2N6P:
reference: OprG Harnesses the Dynamics of its Extracellular Loops to Transport Small Amino Acids across the Outer Membrane of Pseudomonas aeruginosa., Kucharska I, Seelheim P, Edrington T, Liang B, Tamm LK, Structure. 2015 Dec 1;23(12):2234-45. doi: 10.1016/j.str.2015.10.009. Epub 2015, Nov 19. PMID: 26655471

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