6YDC:
reference: Oligosaccharide Binding and Thermostability of Two Related AA9 Lytic Polysaccharide Monooxygenases., Tandrup T, Tryfona T, Frandsen KEH, Johansen KS, Dupree P, Lo Leggio L, Biochemistry. 2020 Sep 15;59(36):3347-3358. doi: 10.1021/acs.biochem.0c00312., Epub 2020 Aug 27. PMID: 32818374

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