| 4QYS: reference: TrpB2 enzymes are O-phospho-l-serine dependent tryptophan synthases., Busch F, Rajendran C, Mayans O, Loffler P, Merkl R, Sterner R, Biochemistry. 2014 Sep 30;53(38):6078-83. doi: 10.1021/bi500977y. Epub 2014 Sep, 17. PMID: 25184516 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).