Specificity 


In biosgnalling, all information transfer need to be very precisely and correctly targeted to cells 

where the specificity comes from
1.ligand-receptor protein structure complementarity
1.1 involve weak noncovalent forces


2.Receptors are expressed in certain types of cell


3.Some down-stream mechanisms to be regulated only exist in certain types of cell 

Posted: Wed - July 13, 2005 at 12:36 PM          


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