4JHL:
reference: A unique octameric structure of Axe2, an intracellular acetyl-xylooligosaccharide esterase from Geobacillus stearothermophilus., Lansky S, Alalouf O, Solomon HV, Alhassid A, Govada L, Chayen NE, Belrhali H, Shoham Y, Shoham G, Acta Crystallogr D Biol Crystallogr. 2014 Feb;70(Pt 2):261-78. doi:, 10.1107/S139900471302840X. Epub 2014 Jan 17. PMID: 24531461

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