scatchard analysis to determine the equilibrium dissociation constant ( kd ) and the maximum number of binding sites ( bmax ) for control brown fat membranes gave a kd of 4.45 nm [ 3h ] dha and bmax of 249 fmol [ 3h ] dha bound per milligram of protein . beta-adrenergic agonists competed for specific binding sites with an order of potency typical of the beta 1 subtype of adrenergic receptors : ( - ) -isoproterenol greater than ( - ) -norepinephrine greater than or equal to ( - ) -epinephrine .
C0028351
norepinephrine
C0014563
epinephrine