To categorical AKAP79 in bacteria in a non-aggregated kind, we cloned the D/D domain (residues 1-45) of human PKA RIIα into pGEX6P1 for expression as a PreScission-cleavable fusion at the N-terminus of GST, and provided a 2nd cistron made up of N-terminally 6xHis-tagged AKAP79. C-lobe of CaM (residues 85-148, PDB 1IWQ) as the lookup design.