interaction attribute name pre-assembly response configurational pre-organization Multivalent ligands form multiple discrete interactions with one or more binding partners. In some cases, An initial binding event can pre-organize other sites for binding. This reduces the degrees of freedom of these sites, thus reducing the entropic costs of their interactions. In addition, the combined strength of multiple interactions increases the enthalpic stability of each interaction (avidity effect). As a result of such effects, interactions of this kind can have a cooperative effect on subsequent interactions. MI:1174 orchard PSI-MI 2012-06-07T01:29:13Z