5AHW:
reference: A Universal Stress Protein (USP) in Mycobacteria binds cAMP., Banerjee A, Adolph RS, Gopalakrishnapai J, Kleinboelting S, Emmerich C, Steegborn C, Visweswariah SS, J Biol Chem. 2015 Mar 23. pii: jbc.M115.644856. PMID: 25802331

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