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Recombinant Human ERBB3, His-tagged, Biotinylated

Cat.No.: ERBB3-283H
Product Overview: Human ErbB-3 /HER3 Protein, Biotinylated (Biotinylated rhErbB3) Ser 20 - Thr 643, was labeled with biotin based on rhErbB3 Protein, which was produced in human 293 cells (HEK293).
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.?
Source: HEK293
Species: Human
Tag: His
Form: Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally Trehalose are added as protectants before lyophilization.
Molecular Mass: Biotinylated rhErbB3, fused with 6×His tag at the C-terminus, has a calculated MW of 71.5 kDa. The predicted N-terminus is Ser 20. DTT-reduced Protein migrates as 100-110 kDa due to glycosylation.
Endotoxin: Less than 1.0 EU per μg of the Biotinylated rhErbB3 by the LAL method.
Purity: >95% as determined by reduced SDS-PAGE.
Storage: Avoid repeated freeze-thaw cycles. No activity loss was observed after storage at: In lyophilized state for 1 year (4°C); After reconstitution under sterile conditions for 3 months (-70°C).
Gene Name: ERBB3 v-erb-b2 erythroblastic leukemia viral oncogene homolog 3 (avian) [ Homo sapiens ]
Official Symbol: ERBB3
Synonyms: ERBB3; v-erb-b2 erythroblastic leukemia viral oncogene homolog 3 (avian); LCCS2, lethal congenital contracture syndrome 2; receptor tyrosine-protein kinase erbB-3; HER3; proto-oncogene-like protein c-ErbB-3; tyrosine kinase-type cell surface receptor HER3; LCCS2; ErbB-3; c-erbB3; erbB3-S; MDA-BF-1; c-erbB-3; p180-ErbB3; p45-sErbB3; p85-sErbB3; MGC88033;
Gene ID: 2065
mRNA Refseq: NM_001005915
Protein Refseq: NP_001005915
MIM: 190151
UniProt ID: P21860
Chromosome Location: 12q13
Pathway: Calcium signaling pathway, organism-specific biosystem; Calcium signaling pathway, conserved biosystem; Downregulation of ERRB2:ERBB3 signaling, organism-specific biosystem; Endocytosis, organism-specific biosystem; Endocytosis, conserved biosystem; ErbB receptor signaling network, organism-specific biosystem; ErbB signaling pathway, organism-specific biosystem;
Function: ATP binding; growth factor binding; growth factor binding; nucleotide binding; protein binding; protein heterodimerization activity; protein heterodimerization activity; protein homodimerization activity; protein tyrosine kinase activator activity; NOT pr

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