4GPD:
reference: Structure of lobster apo-D-glyceraldehyde-3-phosphate dehydrogenase at 3.0 A resolution., Murthy MR, Garavito RM, Johnson JE, Rossmann MG, J Mol Biol 1980 Apr 25;138(4):859-72. PMID: 7411626

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