1NMA:
reference: N9 neuraminidase complexes with antibodies NC41 and NC10: empirical free energy calculations capture specificity trends observed with mutant binding data., Tulip WR, Harley VR, Webster RG, Novotny J, Biochemistry 1994 Jul 5;33(26):7986-97. PMID: 7517697

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