2BUF:
reference: Structural bases of feed-back control of arginine biosynthesis, revealed by the structures of two hexameric N-acetylglutamate kinases, from Thermotoga maritima and Pseudomonas aeruginosa., Ramon-Maiques S, Fernandez-Murga ML, Gil-Ortiz F, Vagin A, Fita I, Rubio V, J Mol Biol. 2006 Feb 24;356(3):695-713. Epub 2005 Dec 12. PMID: 16376937

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