1GSJ:
reference: Structure of acetylglutamate kinase, a key enzyme for arginine biosynthesis and a prototype for the amino acid kinase enzyme family, during catalysis., Ramon-Maiques S, Marina A, Gil-Ortiz F, Fita I, Rubio V, Structure (Camb) 2002 Mar;10(3):329-42. PMID: 12005432

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