parallel studies performed on ob17 cells , a clonal line established from mouse white adipose tissue ( negrel et al. , proc natl acad sci us 75 ( 1978 ) 6054 ) , show that the agonist potency order and the ec50 value for each agonist are brl 37344 ( 3 nm ) greater than isoproterenol ( 10 nm ) greater than norepinephrine ( 20 nm ) greater than epinephrine ( 40 nm ) .
C0028351
norepinephrine
C0014563
epinephrine