Canine V-Erb B2 Erythroblastic Leukemia Viral Oncogene Homolog 3 ELISA Kit | ErbB3 elisa kit
Canine V-Erb B2 Erythroblastic Leukemia Viral Oncogene Homolog 3 ELISA Kit
NCBI and Uniprot Product Information
NCBI Description
This gene encodes a member of the epidermal growth factor receptor (EGFR) family of receptor tyrosine kinases. This membrane-bound protein has a neuregulin binding domain but not an active kinase domain. It therefore can bind this ligand but not convey the signal into the cell through protein phosphorylation. However, it does form heterodimers with other EGF receptor family members which do have kinase activity. Heterodimerization leads to the activation of pathways which lead to cell proliferation or differentiation. Amplification of this gene and/or overexpression of its protein have been reported in numerous cancers, including prostate, bladder, and breast tumors. Alternate transcriptional splice variants encoding different isoforms have been characterized. One isoform lacks the intermembrane region and is secreted outside the cell. This form acts to modulate the activity of the membrane-bound form. Additional splice variants have also been reported, but they have not been thoroughly characterized. [provided by RefSeq, Jul 2008]
Uniprot Description
HER3: 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.
Protein type: Kinase, protein; Protein kinase, tyrosine (receptor); Protein kinase, TK; EC 2.7.10.1; Oncoprotein; Membrane protein, integral; TK group; EGFR family
Chromosomal Location of Human Ortholog: 12q13
Cellular Component: extracellular space; basolateral plasma membrane; integral to plasma membrane; apical plasma membrane; plasma membrane; receptor complex; lateral plasma membrane
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; phosphoinositide-mediated signaling; fibroblast growth factor receptor signaling pathway; wound healing; nerve growth factor receptor signaling pathway; heart development; cranial nerve development; negative regulation of cell adhesion; signal transduction; protein amino acid phosphorylation; negative regulation of signal transduction; peripheral nervous system development; regulation of cell proliferation; Schwann cell differentiation; positive regulation of phosphoinositide 3-kinase cascade; neuron apoptosis; innate immune response; negative regulation of secretion; negative regulation of neuron apoptosis; transmembrane receptor protein tyrosine kinase signaling pathway
Disease: Lethal Congenital Contracture Syndrome 2