Abstract: The present application relates to methods of selecting EGFr binding agents. In certain embodiments, such EGFr binding agents bind to at least a portion of a panitumumab epitope on an EGFr. In certain embodiments, such EGFr binding agents do not bind to a panitumumab epitope on an EGFr.

Abstract: The present application relates to K-ras mutations, to polynucleotides encoding mutant K-ras polypeptides, and to methods of identifying K-ras mutations. The present application also relates to methods of diagnosing cancer; and methods and kits for predicting the usefulness of anti-EGFr specific binding agents in the treatment of tumors.

Abstract: The present invention relates to binding proteins that bind to HER-3 and polynucleotides encoding the same. Expression vectors and host cells comprising the same for the production of the binding protein of the invention are also provided. In addition, the invention provides compositions and methods for diagnosing and treating diseases associated with HER-3 mediated signal transduction and/or its ligand heregulin.

Abstract: Mutations of the epidermal growth factor receptor (EGFr), of phosphatidylinositol 3?-kinase (“Pl3K”), and of B-Raf are described. Methods of treating tumors containing mutated EGFr with human monoclonal antibodies against EGFr are described. Methods and kits for ascertaining the presence of one or more mutant EGFr, mutant Pl3K, and/or mutant B-Raf in a sample and for treating disorders or conditions related to the presence of mutant EGFr, mutant Pl3K, and/or mutant B-Raf are also described. Methods of treating tumors containing mutant EGFr, mutant Pl3K, and/or mutant B-Raf are also described.