Active Recombinant Human ERBB2 Protein, Fc/His-tagged, Alexa Fluor® 647 conjugated

• Cat.No.: ERBB2-14H
• Product Overview: Recombinant human Alexa Fluor® 647 conjugated Erb B2 (Thr23-Thr652) protein with human IgG1 (Pro100-Lys330) Fc tag and His tag at C-terminus was expressed in mouse myeloma cell line.

Specification

• Species: Human
• Source: NS0
• Tag: Fc&His
• Protein Length: 23-652 a.a.
• Description: This gene encodes a member of the epidermal growth factor (EGF) receptor family of receptor tyrosine kinases. This protein has no ligand binding domain of its own and therefore cannot bind growth factors. However, it does bind tightly to other ligand-bound EGF receptor family members to form a heterodimer, stabilizing ligand binding and enhancing kinase-mediated activation of downstream signalling pathways, such as those involving mitogen-activated protein kinase and phosphatidylinositol-3 kinase. Allelic variations at amino acid positions 654 and 655 of isoform a (positions 624 and 625 of isoform b) have been reported, with the most common allele, Ile654/Ile655, shown here. Amplification and/or overexpression of this gene has been reported in numerous cancers, including breast and ovarian tumors. Alternative splicing results in several additional transcript variants, some encoding different isoforms and others that have not been fully characterized.
• Form: Disulfide-linked homodimer
  Labeled with Alexa Fluor® 467
  Excitation Wavelength: 650 nm
  Emission Wavelength: 668 nm
• Bio-activity: Measured by flow cytometry for its ability to bind anti-Human ErbB2/Her2 Monoclonal Antibody conjugated beads. The concentration of Recombinant Human ErbB2/Her2 Fc Chimera Alexa Fluor® 647 that produces 50% of the binding response is 0.50-10.0 ng/mL
• Molecular Mass: 97 kDa
• N-terminal Sequence Analysis: Thr23
• Endotoxin: <1.0 EU/μg of the protein by the LAL method.
• Purity: >90%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
• Storage: Protect from light. Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  6 months from date of receipt, -20 to -70 centigrade as supplied.
  1 month, 2 to 8 centigrade under sterile conditions after opening.
  3 months, -20 to -70 centigrade under sterile conditions after opening.
• Storage Buffer: Supplied as a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
• Shipping: The product is shipped with dry ice or equivalent.

Gene Information

• Gene Name: ERBB2 erb-b2 receptor tyrosine kinase 2 [ Homo sapiens (human) ]
• Official Symbol: ERBB2
• Synonyms: ERBB2; erb-b2 receptor tyrosine kinase 2; NEU; NGL; HER2; TKR1; CD340; HER-2; VSCN2; MLN 19; c-ERB2; c-ERB-2; HER-2/neu; receptor tyrosine-protein kinase erbB-2; c-erb B2/neu protein; herstatin; human epidermal growth factor receptor 2; metastatic lymph node gene 19 protein; neuro/glioblastoma derived oncogene homolog; neuroblastoma/glioblastoma derived oncogene homolog; proto-oncogene Neu; proto-oncogene c-ErbB-2; tyrosine kinase-type cell surface receptor HER2; v-erb-b2 avian erythroblastic leukemia viral oncogene homolog 2; v-erb-b2 avian erythroblastic leukemia viral oncoprotein 2; v-erb-b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog; EC 2.7.10.1
• Gene ID: 2064
• mRNA Refseq: NM_004448
• Protein Refseq: NP_004439
• MIM: 164870
• UniProt ID: P04626

Q&As

Do you have a recommended protocol for immobilizing any avi-tagged recombinant proteins on a streptavidin coated plate?

1.Prepare the streptavidin-coated plate by washing it with PBS (phosphate-buffered saline) or another suitable buffer to remove any impurities. 2.Dilute the Avi-tagged protein in the desired buffer at the desired concentration. It is important to use a buffer that is compatible with the protein and does not interfere with its activity or stability. 3.Add the diluted protein to the streptavidin-coated plate and incubate it for a suitable amount of time at room temperature or 4°C. The exact conditions will depend on the specific protein and the desired level of immobilization. 4.Wash the plate with a suitable buffer to remove any unbound protein. 5.Block the remaining binding sites on the plate with a suitable blocking agent such as BSA (bovine serum albumin) or casein. 6.Wash the plate again to remove any unbound blocking agent. 7.Use the immobilized protein for further experiments such as ELISA, Western blotting, or other assays.