Human ErbB3/Her3 Antibody

Catalog # Availability Size / Price Qty
AF234
AF234-SP
Detection of Human ErbB3/Her3 by Western Blot.
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Product Details
Citations (7)
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Human ErbB3/Her3 Antibody Summary

Species Reactivity
Human
Specificity
Detects human ErbB3 in direct ELISAs and Western blots. In direct ELISAs, less than 1% cross-reactivity with recombinant human (rh) EGF R, rhErbB2, and rhErbB4 is observed.
Source
Polyclonal Goat IgG
Purification
Antigen Affinity-purified
Immunogen
Mouse myeloma cell line NS0-derived recombinant human ErbB3/Her3
Ser20-Thr643
Accession # P21860
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Western Blot
1 µg/mL
See below
Flow Cytometry
2.5 µg/106 cells
MCF‑7 human breast cancer cell line
CyTOF-ready
Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.
 
Neutralization
Measured by its ability to neutralize NRG1‑ beta 1/HRG1‑ beta 1-induced proliferation in the MCF‑7 human breast cancer cell line. The Neutralization Dose (ND50) is typically 0.125-0.5 µg/mL in the presence of 10 ng/mL Recombinant Human NRG1‑ beta 1/HRG1‑ beta 1 Extracellular Domain.

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Data Examples

Western Blot Detection of Human ErbB3/Her3 by Western Blot. View Larger

Detection of Human ErbB3/Her3 by Western Blot.

Western blot shows lysates of MCF‑7 human breast cancer cell line. PVDF Membrane was probed with 1 µg/mL of Goat Anti-Human ErbB3/Her3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF234) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF019). A specific band was detected for ErbB3/Her3 at approximately 180kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 8.

Neutralization Cell Proliferation Induced by NRG1‑ beta 1/HRG1‑ beta 1 and Neutralization by Human ErbB3/Her3 Antibody. View Larger

Cell Proliferation Induced by NRG1‑ beta 1/HRG1‑ beta 1 and Neutralization by Human ErbB3/Her3 Antibody.

Recombinant Human NRG1‑ beta 1/HRG1‑ beta 1 Extracellular Domain (Catalog # 377-HB) stimulates proliferation in the MCF‑7 human breast cancer cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human NRG1‑ beta 1/HRG1‑ beta 1 Extracellular Domain (10 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Human ErbB3/Her3 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF234). The ND50 is typically 0.125‑0.5 µg/mL.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
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.

Background: ErbB3/Her3

ErbB3, also called 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 heterodimerizes with ErbB2 to form a high affinity receptor complex. In contrast, ErbB3 homodimerization or heterodimerization with ErbB4 forms a low affinity heregulin-binding complex. 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. The cytoplasmic domain of ErbB3 also contains six consensus binding motifs for the SH2 domain of the regulatory p85 subunit of phosphoinositide 3-kinase (PI 3-kinase, PI3K) as well as one proline-rich consensus binding motif for the SH3 domain of p85. Human ErbB3 consists of 1342 amino acids (aa) with a 19 aa signal sequence, a 624 aa extracellular domain, a 21 aa transmembrane region, and a 678 aa cytoplasmic domain. ErbB3 appears to play roles in development, cancer, communication at the neuromuscular junction, and regulation of cell growth and differentiation.

References
  1. Kraus, M.H. et. al. (1989) Proc. Natl. Acad. Sci. USA 86:9193.
  2. Plowman, G.D. et. al. (1990) Proc. Natl. Acad. Sci. USA 87:4905.
  3. Carraway, K.L. 3rd et. al. (1994) J. Biol. Chem. 269:14303.
  4. Emkey, R. and C.R. Kahn (1997) J. Biol. Chem. 272:31172.
  5. Sundaresan, S. et. al. (1998) Endocrinology 139:4756.
  6. Hellyer, N.J. et. al. (1998) Biochem. J. 333:757.
  7. Schaefer, G. et. al. (1999) J. Biol. Chem. 274:859.
  8. Hellyer, N.J. et. al. (2001) J. Biol. Chem. 276:42153.
  9. Schlessinger, J. (2000) Cell 103:211.
  10. Daly, R.J. (1999) Growth Factors 16:255.
Long Name
Receptor Tyrosine Protein Kinase ErbB3
Entrez Gene IDs
2065 (Human); 13867 (Mouse)
Alternate Names
c-erbB3; EC 2.7.10; EC 2.7.10.1; ErbB3; ErbB-3; erbB3-S; HER3; HER3c-erbB-3; LCCS2; lethal congenital contracture syndrome 2; MDA-BF-1; MGC88033; p180-ErbB3; p45-sErbB3; p85-sErbB3; Proto-oncogene-like protein c-ErbB-3; receptor tyrosine-protein kinase erbB-3; Tyrosine kinase-type cell surface receptor HER3; v-erb-b2 erythroblastic leukemia viral oncogene homolog 3 (avian)

Product Datasheets

Citations for Human ErbB3/Her3 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

7 Citations: Showing 1 - 7
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  1. Soluble HER3 predicts survival in bladder cancer patients
    Authors: AA Memon, SC Gilliver, M Borre, J Sundquist, K Sundquist, E Nexo, BS Sorensen
    Oncol Lett, 2018;15(2):1783-1788.
    Species: Human
    Sample Types: Plasma
    Applications: ELISA Development (Detection)
  2. Cellular Effects of HER3-Specific Affibody Molecules.
    Authors: Gostring L, Malm M, Hoiden-Guthenberg I, Frejd FY, Stahl S, Lofblom J, Gedda L
    PLoS ONE, 2012;7(6):e40023.
    Species: Human
    Sample Types: Whole Cells
    Applications: IHC
  3. FGFR2-amplified gastric cancer cell lines require FGFR2 and Erbb3 signaling for growth and survival.
    Authors: Kunii K, Davis L, Gorenstein J, Hatch H, Yashiro M, Di Bacco A, Elbi C, Lutterbach B
    Cancer Res., 2008;68(7):2340-8.
    Species: Human
    Sample Types: Cell Lysates
    Applications: Immunoprecipitation
  4. Human epidermal growth factor receptor (HER-1:HER-3) Fc-mediated heterodimer has broad antiproliferative activity in vitro and in human tumor xenografts.
    Authors: Sarup J, Jin P, Turin L, Bai X, Beryt M, Brdlik C, Higaki JN, Jorgensen B, Lau FW, Lindley P, Liu J, Ni I, Rozzelle J, Kumari R, Watson SA, Zhang J, Shepard HM
    Mol. Cancer Ther., 2008;7(10):3223-36.
    Species: Human
    Sample Types: Cell Lysates
    Applications: Western Blot
  5. Soluble ErbB3 levels in bone marrow and plasma of men with prostate cancer.
    Authors: Lin SH, Lee YC, Choueiri MB, Wen S, Mathew P, Ye X, Do KA, Navone NM, Kim J, Tu SM, Yu-Lee LY, Logothetis CJ
    Clin. Cancer Res., 2008;14(12):3729-36.
    Species: Human
    Sample Types: Cell Culture Supernates
    Applications: ELISA Development
  6. A 45-kDa ErbB3 secreted by prostate cancer cells promotes bone formation.
    Authors: Lin SH, Cheng CJ, Lee YC, Ye X, Tsai WW, Kim J, Pasqualini R, Arap W, Navone NM, Tu SM, Hu M, Yu-Lee LY, Logothetis CJ
    Oncogene, 2008;27(39):5195-203.
    Species: Human
    Sample Types: Plasma
    Applications: ELISA Development
  7. Neuregulin-1-beta1 enters brain and spinal cord by receptor-mediated transport.
    Authors: Kastin AJ, Akerstrom V, Pan W
    J. Neurochem., 2004;88(4):965-70.
    Species: Mouse
    Sample Types: In Vivo
    Applications: Neutralization

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