ErbB3/Her3 Antibody (PD00-44)

Immunohistochemistry: ErbB3/Her3 Antibody (PD00-44) [NBP3-32313] - Immunohistochemical analysis of paraffin-embedded human small intestine tissue with Rabbit anti-ErbB3/Her3 antibody (NBP3-32313) at 1/2,000 dilution. The section was pre-treated using heat mediated antigen retrieval with Tris-EDTA buffer (pH 9.0) for 20 minutes. The tissues were blocked in 1% BSA for 20 minutes at room temperature, washed with ddH2O and PBS, and then probed with the primary antibody (NBP3-32313) at 1/2,000 dilution for 1 hour at room temperature. The detection was performed using an HRP conjugated compact polymer system. DAB was used as the chromogen. Tissues were counterstained with hematoxylin and mounted with DPX.

• Reactivity: Hu
• Applications: IHC
• Clone: PD00-44
• Clonality: Monoclonal
• Host: Rabbit
• Conjugate: Unconjugated
• Concentration: 1 mg/ml

ErbB3/Her3 Antibody (PD00-44) Summary

• Additional Information: Recombinant Monoclonal Antibody
• Immunogen: Synthetic peptide within Human ErbB3 aa 650-750 (internal sequence). (Uniprot: P21860)
• Localization: Cell membrane, Secreted.
• Isotype: IgG
• Clonality: Monoclonal
• Host: Rabbit
• Gene: ERBB3
• Purity: Protein A purified

Applications/Dilutions

• Dilutions:
  • Immunohistochemistry
  • Immunohistochemistry-Paraffin 1:2000
• Theoretical MW: 148 kDa.
  Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Packaging, Storage & Formulations

• Storage: Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
• Buffer: PBS (pH7.4), 0.1% BSA and 40% Glycerol
• Preservative: 0.05% Sodium Azide
• Concentration: 1 mg/ml
• Purity: Protein A purified

Alternate Names for ErbB3/Her3 Antibody (PD00-44)

• 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)

Background

The ErbB3 gene encodes a member of the epidermal growth factor receptor (EGFR) family of receptor tyrosine kinases. ErbB3 is a membrane-bound protein which has a neuregulin binding domain but not an active kinase domain. It can therefore bind this ligand but cannot convey a signal into the cell via protein phosphorylation. However it does form heterodimers with other EGF receptor family members which do have kinase activity. Heterodimerization leads to the activation of pathways which lead to cell proliferation or differentiation. Amplification of this gene and/or overexpression of its protein have been reported in numerous cancers including prostate, bladder and breast tumors. Alternate transcriptional splice variants encoding different isoforms have been characterized. One isoform lacks the intermembrane region and is secreted outside the cell. This form acts to modulate the activity of the membrane-bound form. Additional splice variants have also been reported but they have not been thoroughly characterized.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Bioinformatics

• Gene Symbol: ERBB3