Patent ID: 7892554

Claim:
A method of specifically delivering an effector molecule to a cell bearing a c-erbB2 receptor, said method comprising: providing a chimeric molecule comprising said effector molecule attached to an internalizing antibody that specifically binds to the c-erbB2 receptor, wherein said antibody specifically binds to a c-erbB2 epitope as bound by F5 (as encoded by ATCC plasmid deposit designation PTA7843) or C1 (SEQ ID NO: 2); and, contacting said cell bearing a c-erbB2 receptor with said chimeric molecule, whereby said chimeric molecule specifically binds to said cell, wherein said effector molecule is selected from the group consisting of a cytotoxin, a label, a radionuclide, a drug, a liposome, a ligand, and an antibody.