| 1NPC: reference: The structure of neutral protease from Bacillus cereus at 0.2-nm resolution., Stark W, Pauptit RA, Wilson KS, Jansonius JN, Eur J Biochem 1992 Jul 15;207(2):781-91. PMID: 1633827 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).