the order of potency for eliciting these responses ( camp greater than 2'-h-camp greater than n1-o-camp greater than camps ( sp ) greater than 6-cl-camp greater than campn ( ch3 ) 2 ( sp ) greater than 3'-nh-camp greater than 8-br-camp greater than camps ( rp ) greater than campn ( ch3 ) 2 ( rp ] matches that for binding to the major cell surface camp binding sites and differs from that of the cell surface phosphodiesterase and the major intracellular camp binding protein .
C0001455
camp
C0000661
8-br-camp