High affinity fusion proteins and therapeutic and diagnostic methods for use

摘要

High affinity fusion proteins ("trapbodies"), capable of binding and inhibiting the activity of soluble, interacting proteins ("SIPs") are described. The trapbodies are multimers, preferably dimers, of SIP-specific fusion polypeptides which comprise SIP binding domains derived from SIP targets and/or anti-SIP immunoglobulins, as well as multimerizing components.