Key Product Details

Species Reactivity

Validated:

Human

Cited:

Human, Transgenic Mouse

Applications

Validated:

Immunohistochemistry, Western Blot, Inhibition of Cell Growth, Flow Cytometry, CyTOF-ready

Cited:

Western Blot, Flow Cytometry, Immunocytochemistry, Immunoprecipitation, ELISA Capture, ELISA Development

Label

Unconjugated

Antibody Source

Polyclonal Goat IgG
View all ErbB2/Her2 Primary Antibodies »

Product Specifications

Immunogen

Mouse myeloma cell line NS0-derived recombinant human ErbB2/Her2
Thr23-Thr652
Accession # P04626

Specificity

Detects human ErbB2/Her2 in direct ELISAs and Western blots. In direct ELISAs, less than 20% cross-reactivity with recombinant mouse ErbB2 is observed and less than 5% cross-reactivity with recombinant human (rh) ErbB3, rhErbB4, and rhEGF R is observed.

Clonality

Polyclonal

Host

Goat

Isotype

IgG

Endotoxin Level

<0.10 EU per 1 μg of the antibody by the LAL method.

Scientific Data Images for Human ErbB2/Her2 Antibody

ErbB2/Her2 antibody in Human Breast Cancer Tissue by Immunohistochemistry (IHC-P).

ErbB2/Her2 in Human Breast Cancer Tissue.

ErbB2/Her2 was detected in immersion fixed paraffin-embedded sections of human breast cancer tissue using Goat Anti-Human ErbB2/Her2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1129) at 1.7 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Specific staining was localized to epithelial cells. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.

Applications for Human ErbB2/Her2 Antibody

Application
Recommended Usage

CyTOF-ready

Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Flow Cytometry

2.5 µg/106 cells
Sample: MCF‑7 human breast cancer cell line

Immunohistochemistry

5-15 µg/mL
Sample: Immersion fixed paraffin-embedded sections of human breast cancer tissue

Inhibition of Cell Growth

Measured by its ability to inhibit proliferation in the SK‑BR‑3 human breast cancer cell line. Brodowicz, T. et al. (1997) Int. J. Cancer 73:875. The ED50 for this effect is typically 0.06-0.3 µg/mL.

Western Blot

0.1 µg/mL
Sample: Recombinant Human ErbB2/Her2 Fc Chimera (Catalog # 1129-ER)

Reviewed Applications

Read 3 reviews rated 4 using AF1129 in the following applications:

Flow Cytometry Panel Builder

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Advanced Features

  • Spectra Viewer - Custom analysis of spectra from multiple fluorochromes
  • Spillover Popups - Visualize the spectra of individual fluorochromes
  • Antigen Density Selector - Match fluorochrome brightness with antigen density
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Flow Cytometry

Formulation, Preparation, and Storage

Purification

Antigen Affinity-purified

Reconstitution

Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Formulation

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.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Calculators

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

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Background: ErbB2/Her2

ErbB2, also called Neu and Her2 (human epidermal growth factor receptor 2), 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. ErbB2 is widely expressed in epithelial cells and has also been found to be over-expressed in a large number of breast carcinomas. Among ErbB family members, ErbB2 is unique in that it has no identified ligands. Rather, ErbB2 heterodimerizes with the other members of the ErbB family (ErbB1 (EGFR), ErbB3, ErbB4) to form higher affinity signaling complexes. 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. Interestingly, this same three amino acid signal has also been found in ErbB1 and ErbB4. Phosphoinositide 3-kinase has been shown to play a role in ErbB2 signal transduction. The cytoplasmic domain of ErbB2 has been shown to associate with beta-catenin and plakoglobin. Human ErbB2 consists of 1255 amino acids (aa) with a 21 aa signal sequence, a 631 aa extracellular domain, a 23 aa transmembrane region, and a 580 aa cytoplasmic domain. ErbB2 can be shed from the cell surface by proteolytic cleavage by an unidentified protease. ErbB2 appears to play roles in development, cancer, communication at the neuromuscular junction, and regulation of cell growth and differentiation (1-10).

References

  1. Coussens, L. et. al. (1985) Science 230:1132.
  2. Yamamoto, T. et. al. (1986) Nature 319:230.
  3. Kanai, Y. et. al. (1995) Biochem. Biophys. Res. Commun. 208:1067.
  4. Codony-Servat, J. et. al. (1999) Cancer Res. 59:1196.
  5. Carraway, K.L. 3rd et. al.  (1994) J. Biol. Chem. 269:14303.
  6. Emkey, R. and C.R. Kahn (1997) J. Biol. Chem. 272:31172.
  7. Schaefer, G. et. al. (1999) J. Biol. Chem. 274:859.
  8. Schlessinger, J. (2000) Cell 103:211.
  9. Hellyer, N.J. et. al. (2001) J. Biol. Chem. 276:42153.
  10. Daly, R.J. (1999) Growth Factors 16:255.

Long Name

Receptor Tyrosine Protein Kinase ErbB2

Alternate Names

CD340, HER2, Neu Oncogene, NGL, TKR1

Entrez Gene IDs

2064 (Human); 13866 (Mouse); 24337 (Rat); 102146608 (Cynomolgus Monkey)

Gene Symbol

ERBB2

UniProt

P04626

Additional ErbB2/Her2 Products

Product Documents for Human ErbB2/Her2 Antibody

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

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Product Specific Notices for Human ErbB2/Her2 Antibody

For research use only

Citations for Human ErbB2/Her2 Antibody

Customer Reviews for Human ErbB2/Her2 Antibody (3)

4 out of 5
3 Customer Ratings
5 Stars
33%
4 Stars
33%
3 Stars
33%
2 Stars
0%
1 Stars
0%

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Showing  1 - 3 of 3 reviews Showing All
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  • Human ErbB2/Her2 Antibody
    Name: Sajina Parambil
    Application: ELISA
    Sample Tested: Breast cancer tissue
    Species: Goat
    Verified Customer | Posted 08/28/2017
  • Name: Anonymous
    Application: Western Blot
    Sample Tested: See PMID 22393464
    Species: Human
    Verified Customer | Posted 01/05/2015
  • Name: Anonymous
    Application: Immunofluorescence
    Sample Tested: See PMID 25225290
    Species: Human
    Verified Customer | Posted 01/05/2015

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