US Patent 8728479 Antigen-binding proteins comprising recombinant protein scaffolds

Disclosed herein are recombinant protein scaffolds and recombinant multifunctional protein scaffolds for use in producing antigen-binding proteins In addition, nucleic acids encoding such recombinant protein scaffolds, recombinant multifunctional protein scaffolds, and antigen-binding proteins are provided Vectors and cells useful for expression of the described proteins are also provided, as are methods of use.