Patent ID: 8067006

Claim:
A dock-and-lock (DNL) complex comprising: (a) a polymer attached to a peptide selected from the group consisting of DDD1 (SEQ ID NO:1), DDD2 (SEQ ID NO:2), AD1 (SEQ ID NO:3) and AD2 (SEQ ID NO:4); (b) (i) when the polymer is attached to a DDD peptide, an antibody or antigen-binding antibody fragment attached to a peptide selected from the group consisting of AD1 (SEQ ID NO:3) and AD2 (SEQ ID NO:4), or (ii) when the polymer is attached to AD peptide, an antibody or antigen-binding antibody fragment attached to a peptide selected from the group consisting of DDD1 (SEQ ID NO:1) and DDD2 (SEQ ID NO:2); wherein two copies of the DDD peptide form a dimer that binds to one copy of the AD peptide to form the DNL complex.