1NKS:
reference: The structure of a trimeric archaeal adenylate kinase., Vonrhein C, Bonisch H, Schafer G, Schulz GE, J Mol Biol 1998 Sep 11;282(1):167-79. PMID: 9733648

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