The protein encoded by this gene is a transmembrane
glycoprotein that is a member of the protein kinase superfamily.
This protein is a receptor for members of the epidermal growth
factor family. EGFR is a cell surface protein that binds to
epidermal growth factor. Binding of the protein to a ligand induces
receptor dimerization and tyrosine autophosphorylation and leads to
cell proliferation. Mutations in this gene are associated with lung
cancer. Multiple alternatively spliced transcript variants that
encode different protein isoforms have been found for this gene.