4NJM:
reference: Crystal structures and kinetics of Type III 3-phosphoglycerate dehydrogenase reveal catalysis by lysine., Singh RK, Raj I, Pujari R, Gourinath S, FEBS J. 2014 Dec;281(24):5498-512. doi: 10.1111/febs.13091. Epub 2014 Nov 4. PMID: 25294608

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