1OCE:
reference: "Back door" opening implied by the crystal structure of a carbamoylated acetylcholinesterase., Bartolucci C, Perola E, Cellai L, Brufani M, Lamba D, Biochemistry 1999 May 4;38(18):5714-9. PMID: 10231521

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