5OLR:
reference: Dietary pectic glycans are degraded by coordinated enzyme pathways in human colonic Bacteroides., Luis AS, Briggs J, Zhang X, Farnell B, Ndeh D, Labourel A, Basle A, Cartmell A, Terrapon N, Stott K, Lowe EC, McLean R, Shearer K, Schuckel J, Venditto I, Ralet MC, Henrissat B, Martens EC, Mosimann SC, Abbott DW, Gilbert HJ, Nat Microbiol. 2018 Feb;3(2):210-219. doi: 10.1038/s41564-017-0079-1. Epub 2017, Dec 18. PMID: 29255254

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