cAMP	cyclic adenosine monophosphate (3′,5′-cyclic adenosine monophosphate)
GPCR	G protein-coupled receptor
IBMX	3-isobutyl-1-methylxanthine
ID	identity
NCBI	National Center for Biotechnology Information
PKA	protein kinase A (AMP-dependent protein kinase)
PKC	protein kinase C
S	similarity
TAAR	trace amine-associated receptor
TM	transmembrane domain