a receptor tyrosine kinase of the EGFR family. Binds and is activated by neuregulins and NTAK. Can form homodimers or ErbB-2/ErbB-3 heterodimers. Kinase domain lacks activity but heterodimerizes with other EGFRs to transduce growth signals. May be required for HER2 activity. Elevated expression in breast and other tumors is indicative of poor outcome. A secreted form is expressed in metastatic prostate cancer Two alternatively spliced isoforms have been described. Note: This description may include information from UniProtKB.
Protein type: Kinase, protein; Protein kinase, tyrosine (receptor); Protein kinase, TK; Membrane protein, integral; EC 126.96.36.199; TK group; EGFR family
Molecular Function: identical protein binding; protein binding; protein homodimerization activity; transmembrane receptor activity; protein heterodimerization activity; growth factor binding; protein-tyrosine kinase activity; protein tyrosine kinase activator activity; ATP binding
Biological Process: epidermal growth factor receptor signaling pathway; phosphoinositide 3-kinase cascade; fibroblast growth factor receptor signaling pathway; phosphoinositide-mediated signaling; wound healing; nerve growth factor receptor signaling pathway; heart development; cranial nerve development; negative regulation of cell adhesion; signal transduction; protein amino acid phosphorylation; peripheral nervous system development; negative regulation of signal transduction; regulation of cell proliferation; positive regulation of phosphoinositide 3-kinase cascade; Schwann cell differentiation; neuron apoptosis; innate immune response; negative regulation of secretion; negative regulation of neuron apoptosis; transmembrane receptor protein tyrosine kinase signaling pathway
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.