1
E to the change in entropy S, when an unstructured protein is bound and folded (transiently), is smaller than when a structured protein is bound ( G = H S). This concept may be debated, however, due to the relative order of the IDP vs. the dis-order of water upon IDP-partner binding in aqueous media. ii) An open structure gives an IDP the ability to bind to more than one partner and present dif