3AEX:
reference: Product-assisted catalysis as the basis of the reaction specificity of threonine synthase., Murakawa T, Machida Y, Hayashi H, J Biol Chem. 2011 Jan 28;286(4):2774-84. Epub 2010 Nov 17. PMID: 21084312

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