MULTIVALENT BINDING PROTEIN COMPOSITIONS AND METHODS FOR IDENTIFYING VARIANTS OF SAME

摘要

Provided are protein, nucleic acid, and cellular libraries of multivalent binding proteins (e.g., DVD-Fab or DVD-Ig molecules) and the use of these libraries for the screening of multivalent binding proteins using cell surface display technology (e.g., yeast display).

主权项

1. A diverse library of binding proteins comprising a first polypeptide chain having the general formula VH1-(X1)n-VH2-C—(X2)n, wherein VH1 is a first heavy chain variable domain, X1 is a linker with the proviso that it is not a constant domain, VH2 is a second heavy chain variable domain, C is a heavy chain constant domain, X2 is a cell surface protein, and n is 0 or 1, and wherein the amino acid sequences of VH1, VH2 and/or X1 independently vary within the library.