| 2DQ6: reference: Crystal Structure of Aminopeptidase N (Proteobacteria Alanyl Aminopeptidase) from Escherichia coli and Conformational Change of Methionine 260 Involved in Substrate Recognition., Ito K, Nakajima Y, Onohara Y, Takeo M, Nakashima K, Matsubara F, Ito T, Yoshimoto T, J Biol Chem. 2006 Nov 3;281(44):33664-76. Epub 2006 Aug 2. PMID: 16885166 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).