<sod>  [[Receptor_(biochemistry)|Receptors]] are [[protein]]s that bind small [[ligands]]. A typical example of a receptor-ligand complex is a [[neurotransmitter]] bound to a [[neurotransmitter receptor]] in the [[cell membrane]] of the [[synapse]]. The dissociation constant ''K''<sub>d</sub> is used as indicator of the [[affinity]] of the ligand to the receptor. 
 
 == See also ==

 * [[Dissociation (chemistry)]]
* [[inclusion compound]]s
 
 == External links ==
 
 <eod> <sod> [[Receptor_(biochemistry)|Receptors]] are [[protein]]s that bind small [[ligands]]. A typical example of a receptor-ligand complex is a [[neurotransmitter]] bound to a [[neurotransmitter receptor]] in the [[cell membrane]] of the [[synapse]]. The dissociation constant ''K''<sub>d</sub> is used as indicator of the [[affinity]] of the ligand to the receptor. 
 
 == See also ==
 * [[Dissociation (chemistry)]]
* [[Inclusion compound]]s
 
 == External links ==
 
 <eod>