6OR4:
reference: Two complementary alpha-fucosidases from Streptococcus pneumoniae promote complete degradation of host-derived carbohydrate antigens., Hobbs JK, Pluvinage B, Robb M, Smith SP, Boraston AB, J Biol Chem. 2019 Jul 2. pii: RA119.009368. doi: 10.1074/jbc.RA119.009368. PMID: 31266803

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