Recombinant Human Epidermal growth factor receptor (EGFR), partial (Active)

Function

(Microbial infection) Acts as a receptor for hepatitis C virus (HCV) in hepatocytes and facilitates its cell entry. Mediates HCV entry by promoting the formation of the CD81-CLDN1 receptor complexes that are essential for HCV entry and by enhancing membrane fusion of cells expressing HCV envelope glycoproteins

Subcellular Location

Secreted

Disease Association

Lung cancer (LNCR) : A common malignancy affecting tissues of the lung. The most common form of lung cancer is non-small cell lung cancer (NSCLC) that can be divided into 3 major histologic subtypes: squamous cell carcinoma, adenocarcinoma, and large cell lung cancer. NSCLC is often diagnosed at an advanced stage and has a poor prognosis. [The gene represented in this entry is involved in disease pathogenesis] | Neonatal nephrocutaneous inflammatory syndrome (NNCIS) : An autosomal recessive disorder characterized by intrauterine growth retardation, premature birth, fragile skin, recurrent skin infections and sepsis, failure to thrive, nephrocalcinosis, and nephromegaly with tubular dysfunction. Some patients have chronic diarrhea, and necrotizing enterocolitis. [The disease is caused by variants affecting the gene represented in this entry]

Tissue Specificity

Ubiquitously expressed. Isoform 2 is also expressed in ovarian cancers

Subunit

Binding of the ligand triggers homo- and/or heterodimerization of the receptor triggering its autophosphorylation. Heterodimer with ERBB2 (PubMed:10805725). Forms a complex with CCDC88A/GIV (via SH2-like regions) and GNAI3 which leads to enhanced EGFR signaling and triggering of cell migration; binding to CCDC88A requires autophosphorylation of the EGFR C-terminal region, and ligand stimulation is required for recruitment of GNAI3 to the complex (PubMed:20462955, PubMed:25187647). Interacts with ERRFI1; inhibits dimerization of the kinase domain and autophosphorylation (PubMed:18046415). Part of a complex with ERBB2 and either PIK3C2A or PIK3C2B (PubMed:10805725). Interacts with GRB2; an adapter protein coupling the receptor to downstream signaling pathways. Interacts with GAB2; involved in signaling downstream of EGFR. Interacts with STAT3; mediates EGFR downstream signaling in cell proliferation. Interacts with RIPK1; involved in NF-kappa-B activation. Interacts (autophosphorylated) with CBL, CBLB and CBLC; involved in EGFR ubiquitination and regulation; interaction with CBL is reduced in the presence of tensin TNS4 (PubMed:23774213). Interacts with SOCS5; regulates EGFR degradation through ELOC- and ELOB-mediated ubiquitination and proteasomal degradation. Interacts with PRMT5; methylates EGFR and enhances interaction with PTPN6. Interacts (phosphorylated) with PTPN6; inhibits EGFR-dependent activation of MAPK/ERK. Interacts with COPG1; essential for regulation of EGF-dependent nuclear transport of EGFR by retrograde trafficking from the Golgi to the ER. Interacts with TNK2; this interaction is dependent on EGF stimulation and kinase activity of EGFR. Interacts with PCNA; positively regulates PCNA (PubMed:17115032). Interacts with PELP1. Interacts with MUC1. Interacts with AP2M1. Interacts with FER. May interact with EPS8; mediates EPS8 phosphorylation. Interacts (via SH2 domains) with GRB2, NCK1 and NCK2 (PubMed:10026169). Interacts with ATXN2. Interacts with GAREM1. Interacts (ubiquitinated) with ANKRD13A/B/D; the interaction is direct and may regulate EGFR internalization after EGF stimulation. Interacts with GPER1; the interaction occurs in an estrogen-dependent manner. Interacts (via C-terminal cytoplasmic kinase domain) with ZPR1 (via zinc fingers). Interacts with RNF115 and RNF126 (PubMed:23418353). Interacts with GPRC5A (via its transmembrane domain) (PubMed:25311788). Interacts with FAM83B; positively regulates EGFR inducing its autophosphorylation in absence of stimulation by EGF (PubMed:23912460). Interacts with LAPTM4B; positively correlates with EGFR activation (PubMed:28479384). Interacts with STX19 (PubMed:16420529). Interacts with CD44 (PubMed:23589287). Interacts with PGRMC1; the interaction requires PGRMC1 homodimerization (PubMed:26988023). Interacts with PIKFYVE (PubMed:17909029). Interacts with NEU3. Interacts with TRAF4 (PubMed:30352854). Interacts with the ant venom OMEGA-myrmeciitoxin(02)-Mg1a (By similarity). Interacts with CD82; this interaction facilitates ligand-induced endocytosis of the receptor and its subsequent desensitization (PubMed:35538033). Interacts with SNX32; the interaction is required for endolysosomal EGFR trafficking (PubMed:39073202)

• Ullrich A. et al. Human epidermal growth factor receptor cDNA sequence and aberrant expression of the amplified gene in A431 epidermoid carcinoma cells. — Nature (1984)
• Ilekis J.V. et al. Possible role of variant RNA transcripts in the regulation of epidermal growth factor receptor expression in human placenta. — Mol. Reprod. Dev. (1995)
• Reiter J.L. et al. A 1.8 kb alternative transcript from the human epidermal growth factor receptor gene encodes a truncated form of the receptor. — Nucleic Acids Res. (1996)
• Ilekis J.V. et al. Expression of a truncated epidermal growth factor receptor-like protein (TEGFR) in ovarian cancer. — Gynecol. Oncol. (1997)
• Reiter J.L. et al. Comparative genomic sequence analysis and isolation of human and mouse alternative EGFR transcripts encoding truncated receptor isoforms. — Genomics (2001)
• Xu L. et al. Cloning of the cDNA for a short EGF receptor from human placenta. (JUL-)
• PubMed: CI-86ALJ9DN3ER63 (APR-)
• Reiter J.L. et al. Human and mouse alternative EGFR transcripts encoding only the extracellular domain of the receptor. (FEB-)