drug action: binding, agonism and antagonism Flashcards
association
binding
dissociation
unbinding
residence time
time that a ligand is bound to the binding pocket
affinity constant (formule)
Ka= K-1 : K+1
affinity
how good binding is and how much a ligand whats to bind to the receptor
Ka (affinity constant)
conecentration at half maximal occupation of population
occupancy
percentage of receptors that is occupied by a ligand
conformation change
change of shape of the receptor
intrinsic efficacy
capacity to induce active conformation
2 important things that depends the response
number of receptors
intrinsic efficacy
EC50
concentration at which we have 50% effect
ED50
concentration at which we have 50% effect
potency
dose at which effects occur
efficacy
magnitude of effect after binding
receptor reserve
when you get maximum effect even if not all receptors are occupied