c-erbB3, Recombinant, Human (HER 3, ErbB3)

Catalog No : USB-C0026-05
377.02€
0.00€

Shipping cost plus VAT not included , delivery in 7-14 business days

Product name c-erbB3, Recombinant, Human (HER 3, ErbB3)
Catalog No USB-C0026-05
Supplier’s Catalog No C0026-05
Supplier US Biologicals
Source antigen Recombinant, E. coli
Reactivity
Cross reactivity
Applications
Molecular weight 34
Storage -20°C
Other names
Grade Highly Purified
Purity ≥ 95% as determined by RP-HPLC and SDS-PAGE.
Form Supplied as a supension in 1mg aluminum hydroxide 10mM arginine, 10mM sodium chloride, 20mM sodium phosphate buffer and 5mM potassium phosphate. It is recommended that sterile PBS containing 1mg aluminum hydroxide be added to the vial to prepare a stock solution.
Reactivity life 6 months
Note For reserch purpose only
Purity ≥ 95% as determined by RP-HPLC and SDS-PAGE.
Description ErbB3/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 can induce specific antibody production in vivo, hence to inhibit tumor cell growth. ErbB-3 can be used to treat early, medium and advanced or post-operative breast cancer with over-expression of ErbB2. According to its mechanism of action, ErbB3 is classified as a therapeutic for cancer. Tyrosine Kinase ErbB3 Human Recombinant (HER3) produced in E.Coli is a single, non-glycosylated polypeptide consisting of several epitopes of extracellular domain of human Erb-b3, and having a total molecular mass of approximately 12kD. The ErbB3 is purified by proprietary chromatographic techniques. Biological Activity: Recombinant ErbB3 is fully biologically active when compared to standard. Measured by its ability to postpone tumor emerge time of spontaneous breast cancer in FVB/N transgenic mice and inhibit the development of tumor, effectively inhibit the growth of in situ transplanted breast cancer in FVB/N transgenic mice. Storage and Stability: May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. For long tern storage, add a carrier protein (0.1% BSA or HSA) and store at -20°C. Aliquots are stable for 6 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.