4QQS:
reference: High-resolution crystal structure of a polyextreme GH43 glycosidase from Halothermothrix orenii with alpha-L-arabinofuranosidase activity., Hassan N, Kori LD, Gandini R, Patel BK, Divne C, Tan TC, Acta Crystallogr F Struct Biol Commun. 2015 Mar 1;71(Pt 3):338-45. doi:, 10.1107/S2053230X15003337. Epub 2015 Feb 19. PMID: 25760712

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