| Reactivity | HuSpecies Glossary |
| Applications | WB, IHC |
| Clone | 66219 |
| Clonality | Monoclonal |
| Host | Mouse |
| Conjugate | Unconjugated |
| Immunogen | Mouse myeloma cell line NS0-derived recombinant human ErbB3 Ser20-Thr643 Accession # P21860 |
| Specificity | Detects human ErbB3 in direct ELISAs and Western blots. In direct ELISAs and Western blots, this antibody shows no cross-reactivity with recombinant human (rh) EGF R, rhErbB4, or rhErbB2. |
| Source | N/A |
| Isotype | IgG1 |
| Clonality | Monoclonal |
| Host | Mouse |
| Gene | ERBB3 |
| Purity Statement | Protein A or G purified from ascites |
| Innovator's Reward | Test in a species/application not listed above to receive a full credit towards a future purchase. |
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| Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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| Buffer | Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS. |
| Preservative | No Preservative |
| Reconstitution Instructions | Reconstitute at 0.5 mg/mL in sterile PBS. |
ErbB3, also called Her3 (human epidermal growth factor receptor 3), is a type I membrane glycoprotein that is a member of the ErbB family of tyrosine kinase receptors. ErbB family members serve as receptors for the epidermal growth factor (EGF) family of growth factors. Among ErbB family members, ErbB3 is unique in that it contains a defective kinase domain. ErbB3 is expressed in keratinocytes, melanocytes, skeletal muscle cells, embryonic myoblasts and Schwann cells. Monomeric ErbB3 serves as a low affinity receptor for the heregulins (HRG). ErbB3 heterodimerizes with ErbB2 to form a high affinity receptor complex. In contrast, ErbB3 homodimerization or heterodimerization with ErbB4 forms a low affinity heregulin-binding complex. Because ErbB3 contains a defective kinase domain, the kinase domain of ErbB2 is responsible for initiating the tyrosine phosphorylation signal through the heterodimeric receptor. It has been found that a discrete three amino acid signal in the ErbB3 cytoplasmic domain is critical for transactivation of ErbB2. The cytoplasmic domain of ErbB3 also contains six consensus binding motifs for the SH2 domain of the regulatory p85 subunit of phosphoinositide 3-kinase (PI 3-kinase, PI3K) as well as one proline-rich consensus binding motif for the SH3 domain of p85. Human ErbB3 consists of 1342 amino acids (aa) with a 19 aa signal sequence, a 624 aa extracellular domain, a 21 aa transmembrane region, and a 678 aa cytoplasmic domain. ErbB3 appears to play roles in development, cancer, communication at the neuromuscular junction and regulation of cell growth and differentiation
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Secondary Antibodies |
Isotype Controls |
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The concentration calculator allows you to quickly calculate the volume, mass or concentration of your vial. Simply enter your mass, volume, or concentration values for your reagent and the calculator will determine the rest.
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![SDS-Page: Mouse IgG1 Isotype Control (MG1) [NBP1-97005] - Lane 1: , Non-reduced. M: Opal Pre-stained Ladder. Lane 2: , Reduced. Load: 1.0 ug per lane. Predicted/Observed: 120 kDa Non-reduced, 55 and 25 Reduced.](https://images.novusbio.com/images/Mouse-IgG1-Isotype-Control-MG1-SDS-Page-NBP1-97005-img0002.jpg "SDS-Page: Mouse IgG1 Isotype Control (MG1) [NBP1-97005] - Lane 1: , Non-reduced. M: Opal Pre-stained Ladder. Lane 2: , Reduced. Load: 1.0 ug per lane. Predicted/Observed: 120 kDa Non-reduced, 55 and 25 Reduced.")