bis-4-NPP	Bis-4-nitrophenylphosphate
c-di-AMP	3′,5′-cyclic diadenosine monophosphate
c-di-GMP	3′,5′-cyclic diguanosine monophosphate
CpdB_Cdom	C-terminal domain of CpdB
CpdB_Ndom	N-terminal domain of CpdB
HPLC	High-performance liquid chromatography
GST	Glutathione S-transferase
EDTA	Ethylenediaminetetraacetate
pApA	5′-phosphoadenylyl-3′→5′-adenosine
PDB	Protein Data Bank
pGpG	5′-phosphoguanylyl-3′→5′-guanosine
SDS-PAGE	Sodium dodecyl sulfate polyacrylamide gel electrophoresis
Tris	Tris(hydroxymethyl)aminomethane