4ZRE:
reference: Structure of product-bound SMG1 lipase: active site gating implications., Guo S, Xu J, Pavlidis IV, Lan D, Bornscheuer UT, Liu J, Wang Y, FEBS J. 2015 Sep 13. doi: 10.1111/febs.13513. PMID: 26365206

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