| 4FZH: reference: Structure of the ulster strain newcastle disease virus hemagglutinin-neuraminidase reveals auto-inhibitory interactions associated with low virulence., Yuan P, Paterson RG, Leser GP, Lamb RA, Jardetzky TS, PLoS Pathog. 2012 Aug;8(8):e1002855. Epub 2012 Aug 9. PMID: 22912577 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).