computer analysis of [ 125i ] iodocyanopindolol competition studies using the relatively selective beta 1-adrenoceptor antagonist , ici 89406 , and the beta 2-selective antagonist , ici 118551 , on rabbit mononuclear leukocyte plasmalemmal preparations favored a two-site model indicating that both beta 1- and beta 2-adrenoceptor subtypes were present in approximately equal numbers .
C0001642
beta 1-adrenoceptor
C0007603
plasmalemmal