2VFL:
reference: AKAP18 contains a phosphoesterase domain that binds AMP., Gold MG, Smith FD, Scott JD, Barford D, J Mol Biol. 2008 Feb 1;375(5):1329-43. Epub 2007 Nov 22. PMID: 18082768

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