3H73:
reference: Crystal structures of respiratory pathogen neuraminidases., Hsiao YS, Parker D, Ratner AJ, Prince A, Tong L, Biochem Biophys Res Commun. 2009 Mar 13;380(3):467-71. Epub 2009 Jan 23. PMID: 19284989

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