Ligand

摘要

The invention relates to a multivalent ligand comprising non-complementary binding domains specific for the same epitope, wherein the epitope is comprised by a target antigen having multiple copies of said epitope, wherein each epitope binding domain is an immunoglobulin single variable domain or wherein each epitope binding domain comprises a non-immunoglobulin protein scaffold. The invention relates also to a ligand which binds a multisubunit target antigen.