4MKT:
reference: Binding of Pro-Gly-Pro at the active site of leukotriene A4 hydrolase/aminopeptidase and development of an epoxide hydrolase selective inhibitor., Stsiapanava A, Olsson U, Wan M, Kleinschmidt T, Rutishauser D, Zubarev RA, Samuelsson B, Rinaldo-Matthis A, Haeggstrom JZ, Proc Natl Acad Sci U S A. 2014 Mar 3. PMID: 24591641

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