here , we describe the effects of forskolin ( fsk ) , a specific activator of adenylate cyclase , 8-bromocyclic amp ( 8brca ) , an analogue of cyclic amp , and 8-bromocyclic gmp ( 8brcg ) , an analogue of cyclic gmp , on melatonin output by these cells .
C0000661
8-bromocyclic amp
C0001455
cyclic amp