| 4CPM: reference: A novel I221 L substitution in neuraminidase confers high level resistance to oseltamivir in influenza B viruses., Escuret V, Collins PJ, Casalegno JS, Vachieri SG, Cattle N, Ferraris O, Sabatier M, Frobert E, Caro V, Skehel JJ, Gamblin S, Valla F, Valette M, Ottmann M, McCauley JW, Daniels RS, Lina B, J Infect Dis. 2014 May 3. PMID: 24795482 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).