4GA5:
reference: Structure analysis of archaeal AMP phosphorylase reveals two unique modes of dimerization., Nishitani Y, Aono R, Nakamura A, Sato T, Atomi H, Imanaka T, Miki K, J Mol Biol. 2013 Aug 9;425(15):2709-21. doi: 10.1016/j.jmb.2013.04.026. Epub 2013, May 7. PMID: 23659790

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