Anti-EGFR Picoband® Antibody

The epidermal growth factor receptor (EGFR; ErbB-1; HER1 in humans) is a transmembrane protein that is a receptor for members of the epidermal growth factor family (EGF family) of extracellular protein ligands. It is mapped to 11 A2; 11 9.41 cM. 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.

Cancer, Growth Factors/Hormones, Oncoproteins, Oncoproteins/Suppressors, Protein Phosphorylation, Receptor Tyrosine Kinases, Signal Transduction, Tumor Biomarkers, Tyrosine Kinases

Receptor tyrosine kinase binding ligands of the EGF family and activating several signaling cascades to convert extracellular cues into appropriate cellular responses. Known ligands include EGF, TGFA/TGF-alpha, AREG, epigen/EPGN, BTC/betacellulin, epiregulin/EREG and HBEGF/heparin-binding EGF. Ligand binding triggers receptor homo- and/or heterodimerization and autophosphorylation on key cytoplasmic residues. The phosphorylated receptor recruits adapter proteins like GRB2 which in turn activates complex downstream signaling cascades. Activates at least 4 major downstream signaling cascades including the RAS-RAF-MEK-ERK, PI3 kinase-AKT, PLCgamma-PKC and STATs modules. May also activate the NF-kappa-B signaling cascade. Also ly phosphorylates other proteins like RGS16, activating its GTPase activity and probably coupling the EGF receptor signaling to the G protein-coupled receptor signaling. Also phosphorylates MUC1 and increases its interaction with SRC and CTNNB1/beta-catenin. Plays a role in enhancing learning and memory performance.

1. Aguirre, A., Rubio, M. E., Gallo, V. Notch and EGFR pathway interaction regulates neural stem cell number and self-renewal. Nature 467: 323-327, 2010. 2. Bean, J., Brennan, C., Shih, J.-Y., Riely, G., Viale, A., Wang, L., Chitale, D., Motoi, N., Szoke, J., Broderick, S., Balak, M., Chang, W.-C., and 11 others. MET amplification occurs with or without T790M mutations in EGFR mutant lung tumors with acquired resistance to gefitinib or erlotinib. Proc. Nat. Acad. Sci. 104: 20932-20937, 2007. 3. Bell, D. W., Gore, I., Okimoto, R. A., Godin-Heymann, N., Sordella, R., Mulloy, R., Sharma, S. V., Branigan, B. W., Mohapatra, G., Settleman, J., Haber, D. A. Inherited susceptibility to lung cancer may be associated with the T790M drug resistance mutation in EGFR. Nature Genet. 37: 1315-1316, 2005.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.

Nucleus membrane. Single-pass type I membrane protein. Nucleus. Plasma membrane. Cell membrane. Single-pass type I membrane protein. Endosome. Endosome membrane. Endoplasmic reticulum membrane. Single-pass type I membrane protein. Golgi apparatus. Golgi apparatus membrane. Single-pass type I membrane protein.