Active Recombinant Human ERBB2 Protein, His-tagged, Site-specific PE-Labeled

• Cat.No.: ERBB2-038HP
• Product Overview: Site-specific PE-Labeled Active Recombinant Human ERBB2 Protein(P04626-1)(Thr 23 - Thr 652), fused with C-terminal His tag, was expressed in HEK293.

Specification

• Source: HEK293
• Species: Human
• Tag: C-His
• Protein length: Thr 23 - Thr 652
• Conjugation/Label: Site-specific PE
• Form: Lyophilized from 0.22 μm filtered solution in PBS, 0.5% BSA, pH7.4.
• Bio-activity: 5e5 of anti-Her2 CAR-293 cells were stained with 100 μL of 1:25 dilution (4 μL stock solution in 100 μL FACS buffer) of PE-Labeled Human Her2, His Tag and negative control protein respectively. PE signal was used to evaluate the binding activity.
• Molecular Mass: The protein has a calculated MW of 73.0 kDa.
• Storage: For long term storage, the product should be stored at lyophilized state at -20°C or lower.
  Please protect from light and avoid repeated freeze-thaw cycles.
  This product is stable after storage at:
  -20°C to -70°C for 12 months in lyophilized state;
  -70°C for 6 months under sterile conditions after reconstitution.
• Reconstitution: It is recommended that sterile water be added to the vial to prepare a stock solution of 0.2 ug/ul. Centrifuge the vial at 4°C before opening to recover the entire contents.

Gene Information

• Gene Name: ERBB2 v-erb-b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog (avian) [ Homo sapiens ]
• Official Symbol: ERBB2
• Synonyms: ERBB2; v-erb-b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog (avian); NGL, v erb b2 avian erythroblastic leukemia viral oncogene homolog 2 (neuro/glioblastoma derived oncogene homolog); receptor tyrosine-protein kinase erbB-2; CD340; HER 2; HER2; NEU; herstatin; p185erbB2; proto-oncogene Neu; c-erb B2/neu protein; proto-oncogene c-ErbB-2; metastatic lymph node gene 19 protein; tyrosine kinase-type cell surface receptor HER2; neuroblastoma/glioblastoma derived oncogene homolog; v-erb-b2 avian erythroblastic leukemia viral oncogene homolog 2 (neuro/glioblastoma derived oncogene homolog); NGL; TKR1; HER-2; MLN 19; HER-2/neu
• Gene ID: 2064
• mRNA Refseq: NM_001005862
• Protein Refseq: NP_001005862
• MIM: 164870
• UniProt ID: P04626

Reviews

05/09/2022

Worked as expected, satisfied.

03/16/2022

Reliable in protein assays.

09/27/2020

Quick and reliable shipping.

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.

What is the primary role of ERBB2 in cell signaling?

ERBB2 is a receptor tyrosine kinase involved in the regulation of cell growth and differentiation.

What therapeutic agents target ERBB2 in cancer treatment?

Therapeutic agents targeting ERBB2 include trastuzumab and lapatinib.

In which types of cancer is ERBB2 commonly overexpressed?

ERBB2 is commonly overexpressed in breast, ovarian, and stomach cancers.

How does ERBB2 overexpression affect patient prognosis in cancer?

ERBB2 overexpression is often associated with aggressive disease and poor prognosis.

How can ERBB2 levels be assessed in a clinical setting?

ERBB2 levels can be assessed using immunohistochemistry and fluorescence in situ hybridization (FISH) in tissue samples.

How is ERBB2 involved in cell growth and proliferation?

It forms heterodimers with other ERBB receptors, activating pathways that promote cell growth and survival.

Are there known genetic mutations that lead to ERBB2 overexpression?

Amplification of the ERBB2 gene leads to its overexpression in cancer cells.