ARG70242

Human ERBB3 / HER3 recombinant protein (ECD) (His-tagged, C-ter)

Human ERBB3 / HER3 recombinant protein (ECD) (His-tagged, C-ter) for SDS-PAGE,Binding Activity and Human

Overview

Product Description HEK293 expressed, His-tagged (C-ter) Human ERBB3 / HER3 recombinant protein (ECD).
Tested Reactivity Hu
Tested Application Binding, SDS-PAGE
Target Name ERBB3 / HER3 (ECD)
Species Human
A.A. Sequence Ser20 - Thr643 of Human ERBB3 / HER3 (NP_001973.2) with 6X His tag at the C-terminus.
Expression System HEK293
Alternate Names MDA-BF-1; LCCS2; p180-ErbB3; Proto-oncogene-like protein c-ErbB-3; c-erbB3; p85-sErbB3; Tyrosine kinase-type cell surface receptor HER3; p45-sErbB3; erbB3-S; HER3; c-erbB-3; ErbB-3; EC 2.7.10.1; Receptor tyrosine-protein kinase erbB-3

Application Instructions

Application Note Binding activity test: Measured by its binding ability in a functional ELISA. Immobilized Recombinant Human ERBB3 at 2µg/ml (100µl/well) can bind Recombinant Human NRG1-beta1 with a linear range of 0.128-45.7 ng/ml.

Properties

Form Powder
Purification Note 0.22 µm filter sterilized. Endotoxin level is less than 0.1 EU/µg of the protein, as determined by the LAL test.
Purity > 97% (by SDS-PAGE)
Buffer PBS (pH 7.4)
Reconstitution Reconstitute to a concentration of 0.1 - 0.5 mg/ml in sterile distilled water.
Storage Instruction Lyophilized protein should be stored at -20°C or -80°C. After reconstitution, aliquot and store at -20°C for up to one month, at 2-8°C for up to one week. Storage in frost free freezers is not recommended. Avoid repeated freeze/thaw cycles. Suggest spin the vial prior to opening.
Note For laboratory research only, not for drug, diagnostic or other use.

Bioinformation

Database Links

GeneID: 2065 Human ERBB3

Swiss-port # P21860 Human Receptor tyrosine-protein kinase erbB-3

Gene Symbol ERBB3
Gene Full Name erb-b2 receptor tyrosine kinase 3
Background 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]
Function Tyrosine-protein kinase that plays an essential role as cell surface receptor for neuregulins. Binds to neuregulin-1 (NRG1) and is activated by it; ligand-binding increases phosphorylation on tyrosine residues and promotes its association with the p85 subunit of phosphatidylinositol 3-kinase (PubMed:20682778). May also be activated by CSPG5 (PubMed:15358134). Involved in the regulation of myeloid cell differentiation (PubMed:27416908). [UniProt]
Cellular Localization Isoform 1: Cell membrane; Single-pass type I membrane protein. Isoform 2: Secreted. [UniProt]
Calculated MW 148 kDa
PTM Autophosphorylated (PubMed:20351256). Ligand-binding increases phosphorylation on tyrosine residues and promotes its association with the p85 subunit of phosphatidylinositol 3-kinase (PubMed:20682778). [UniProt]