Human ERBB3 (Receptor Tyrosine-Protein Kinase Erbb-3) - Recombinant Protein

Beta LifeScience SKU/CAT #: BLT-08465P
Beta Lifescience recombinant protein notice with SDS-PAGE availability in next QC run
Beta Lifescience recombinant protein notice with SDS-PAGE availability in next QC run

Human ERBB3 (Receptor Tyrosine-Protein Kinase Erbb-3) - Recombinant Protein

Beta LifeScience SKU/CAT #: BLT-08465P
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Size

Quantity Pricing

Pack Size Price (USD)
500 µg $1,206.00 Original price: $1,575.00
1 mg $2,284.00 Original price: $2,855.00

For direct online orders, quantity pricing will be displayed in cart when you add 5x100ug or 10x100ug


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Product Overview

Product Name Recombinant Human V-Erb B2 Erythroblastic Leukemia Viral Oncogene Homolog 3 (ErbB3) Protein
Product Overview This recombinant human V-Erb B2 Erythroblastic Leukemia Viral Oncogene Homolog 3 (ErbB3) protein includes amino acids 709-966 of the target gene is expressed in E.coli.The protein is supplied in lyophilized form and formulated in PBS pH 7.4, 0.01% SKL, 5% Trehalose, 1% Mannitolprior to lyophilization.
Target Uniprot Id P21860
Recommended Name Receptor tyrosine-protein kinase erbB-3
Gene Name ERBB3
Synonyms HER3; MDA-BF-1; C-ErbB3; LCCS2; ErbB3-S; P180-ErbB3; P45-SErbB3; P85-SErbB3; Receptor Tyrosine-Protein Kinase ErbB-3; Lethal Congenital Contracture Syndrome 2
Species Human
Predicted Molecular Mass 32kDa
Expression System E.coli
Expression Range 709-966
Tag N-6His
Purity >90%
Formulation Lyophilized
Buffer PBS pH 7.4, 0.01% SKL, 5% Trehalose, 1% Mannitol
Storage Condition 1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Reconstitution Instruction Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Applications Positive Control; Immunogen; SDS-PAGE; WB
Target 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. May also be activated by CSPG5. Involved in the regulation of myeloid cell differentiation.
Subcellular Location [Isoform 1]: Cell membrane; Single-pass type I membrane protein.; [Isoform 2]: Secreted.
Protein Family Protein kinase superfamily, Tyr protein kinase family, EGF receptor subfamily
Associated Diseases Lethal congenital contracture syndrome 2 (LCCS2)
Tissue Specificity Epithelial tissues and brain.

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.

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