The present invention relates to antigen binding proteins comprising an immunoglobulin heavy chain and an immunoglobulin light chain, wherein the heavy chain comprises an epitope binding domain linked to the n-terminus of CH1-CH2-CH3, and the light chain comprises an epitope binding domain linked to the n-terminus of CL, wherein one or more epitope-binding domains are linked to the C-terminus of the immunoglobulin heavy chain, and/or one or more epitope-binding domains are linked to the C-terminus of the immunoglobulin light chain, methods for making such proteins, and uses thereof.
