Rat Recombinant Monoclonal ErbB2 / HER2 antibody. Suitable for Flow Cyt, ICC/IF, IHC-P and reacts with Human samples. Cited in 3 publications.
pH: 7.2 - 7.4
Preservative: 0.01% Sodium azide
Constituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
IP | Flow Cyt | WB | ICC/IF | IHC-P | |
---|---|---|---|---|---|
Human | Not recommended | Tested | Not recommended | Tested | Tested |
Mouse | Not recommended | Not recommended | Not recommended | Not recommended | Not recommended |
Rat | Not recommended | Not recommended | Not recommended | Not recommended | Not recommended |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info - | Notes Perform heat-mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol. |
Species Mouse | Dilution info - | Notes - |
Species Rat | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 1/1000 | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Mouse, Rat | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human, Mouse, Rat | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 1/100 | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Mouse, Rat | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 1/400 | Notes Perform heat-mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol. |
Species | Dilution info | Notes |
---|---|---|
Species Mouse | Dilution info - | Notes Perform heat-mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol. |
Species Rat | Dilution info - | Notes Perform heat-mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol. |
The protein expressed by the ERBB2 gene is a protein tyrosine kinase involved in several cell surface receptor complexes, requiring a coreceptor for ligand binding. It is an essential component of a neuregulin-receptor complex, although neuregulins do not bind to it directly. GP30 is a potential ligand for this receptor. ERBB2 regulates the outgrowth and stabilization of peripheral microtubules (MTs) via the MEMO1-RHOA-DIAPH1 signaling pathway, which, upon activation, phosphorylates and inhibits GSK3B at the cell membrane. This prevents APC and CLASP2 phosphorylation, allowing their association with the cell membrane, facilitating MACF1 localization necessary for microtubule capture and stabilization. In the nucleus, ERBB2 is involved in transcriptional regulation, associating with the 5'-TCAAATTC-3' sequence in the PTGS2/COX-2 promoter to activate transcription. It is implicated in the transcriptional activation of CDKN1A, involving STAT3 and SRC, and participates in the transcription of rRNA genes by RNA Pol I, thereby enhancing protein synthesis and cell growth. This supplementary information is collated from multiple sources and compiled automatically.
CD340, HER2, MLN19, NEU, NGL, ERBB2, Receptor tyrosine-protein kinase erbB-2, Metastatic lymph node gene 19 protein, Proto-oncogene Neu, Proto-oncogene c-ErbB-2, Tyrosine kinase-type cell surface receptor HER2, p185erbB2, MLN 19
Rat Recombinant Monoclonal ErbB2 / HER2 antibody. Suitable for Flow Cyt, ICC/IF, IHC-P and reacts with Human samples. Cited in 3 publications.
pH: 7.2 - 7.4
Preservative: 0.01% Sodium azide
Constituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
This product is a recombinant monoclonal antibody, which offers several advantages including:
For more information, read more on recombinant antibodies.
This antibody clone is manufactured by Abcam. If you require a custom buffer formulation or conjugation for your experiments, please contact orders@abcam.com
The ErbB2 also known as HER2 or HER2 protein is a transmembrane receptor protein with a molecular weight of about 185 kDa. It serves as part of the epidermal growth factor receptor (EGFR) family of receptor tyrosine kinases. The ErbB2 protein is expressed mainly in epithelial tissues including those of the breast and the gastrointestinal tract. It lacks a known ligand-binding domain which sets it apart from other members of its family. Due to its structure ErbB2 dimerizes with other members of the EGFR family to exert its effects in cellular signaling.
The role of ErbB2 extends beyond a singular function. It becomes an active component when forming heterodimers with other EGFR family members such as ErbB3 to initiate various downstream signaling cascades. The dimerization activates intracellular pathways leading to cell proliferation survival differentiation and migration. Within cells ErbB2 influences processes critical for normal development and tissue homeostasis contributing significantly to signal transduction networks.
ErbB2 plays a pivotal role in pathways such as the PI3K/Akt and MAPK/ERK pathways. These pathways are important in mediating cellular responses to growth signals. The PI3K/Akt pathway activated by HER2 signaling regulates cell growth and survival while the MAPK/ERK pathway contributes to cell differentiation and proliferation. ErbB2's interaction with proteins like ErbB3 is fundamental in these pathways increasing the amplitude and diversity of downstream signals.
ErbB2 is significantly associated with breast cancer and gastric cancer. The overexpression or gene amplification of HER2 is observed in approximately 20% of breast cancer cases correlating with aggressive tumor growth and poor prognosis. ErbB2-related signaling contributes to oncogenic processes by promoting excessive cell proliferation. Targeting ErbB2 in these cancers is common using therapies such as monoclonal antibodies like trastuzumab. In the context of gastric cancer the role of ErbB2 mirrors its function in breast cancer and targeting HER2 holds therapeutic potential.
We have tested this species and application combination and it works. It is covered by our product promise.
We have not tested this specific species and application combination in-house, but expect it will work. It is covered by our product promise.
This species and application combination has not been tested, but we predict it will work based on strong homology. However, this combination is not covered by our product promise.
We do not recommend this combination. It is not covered by our product promise.
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Flow cytometric analysis of MCF7 (human breast adenocarcinoma epithelial cell, Left panel) / SK-BR-3 (human breast adenocarcinoma epithelial cell, Right panel) cells labelling ErbB 2 with ab11710 at 1/1000 dilution (0.1μg) (Red) compared with a rat monoclonal IgG (Black) isotype control and an unlabelled control (cells without incubation with primary antibody and secondary antibody) (Blue). Goat anti rat IgG (Alexa Fluor® 488, Goat Anti-Rat IgG H&L (Alexa Fluor® 488) ab150157) at 1/2000 dilution was used as the secondary antibody.
Low expression control: MCF7 (PMID: 17938260).
Gated on viable cells.
Immunohistochemical analysis of paraffin-embedded human breast carcinoma tissue labeling ErbB2 / HER2 with ab11710 at 1/400 dilution followed by ready to use Goat Anti-rat IgG H&L (HRP polymer) (Goat Anti-Rat IgG H&L (HRP polymer) ab214882). Membranous staining on human breast carcinoma. Counterstained with Hematoxylin.
Secondary antibody only control: Secondary antibody is ready to use Goat Anti-rat IgG H&L (HRP polymer) (Goat Anti-Rat IgG H&L (HRP polymer) ab214882).
Heat mediated antigen retrieval using Antigen Retrieval Buffer (100X Tris-EDTA Buffer, pH 9.0) ab93684 (Tris/EDTA buffer, pH 9.0).
Immunofluorescent analysis of 4% Paraformaldehyde-fixed, 0.1% Triton X-100 permeabilized SK-BR-3 cells labelling ErbB 2 with ab11710 at 1/100 dilution, followed by Goat Anti-Rat IgG H&L (Alexa Fluor® 488) ab150157 Goat Anti-rat IgG H&L (Alexa Fluor® 488) antibody at 1/1000 dilution (Green). Confocal image showing strong membranous staining in SK-BR-3 cells. Anti-beta Tubulin antibody [EPR16774] - Loading Control ab179513 Anti-beta Tubulin rabbit monoclonal antibody was used to counterstain tubulin at 1/200 dilution, followed by Goat Anti-Rabbit IgG H&L (Alexa Fluor® 594) ab150080 Goat Anti-Rabbit IgG H&L (Alexa Fluor® 594) at a 1/1000 diliution (Red). The nuclear counterstain was DAPI (Blue).
Negative control 1: ab11710 at 1/100 dilution followed by Goat Anti-Rabbit IgG H&L (Alexa Fluor® 594) ab150080 at a 1/1000 dilution.
Negative control 2: Anti-beta Tubulin antibody [EPR16774] - Loading Control ab179513 at a 1/200 dilution followed by Goat Anti-Rat IgG H&L (Alexa Fluor® 488) ab150157 at a 1/1000 dilution.
Negative control cells: MCF7 (PMID: 18288420).
Immunohistochemical analysis of paraffin-embedded human breast carcinoma tissue labeling ErbB 2 with ab11710 at 1/400 dilution followed by ready to use Goat Anti-rat IgG H&L (HRP polymer) (Goat Anti-Rat IgG H&L (HRP polymer) ab214882). No staining on human breast carcinoma without expression of HER2 is observed. Counterstained with Hematoxylin.
Secondary antibody only control: Secondary antibody is ready to use Goat Anti-rat IgG H&L (HRP polymer) (Goat Anti-Rat IgG H&L (HRP polymer) ab214882).
Heat mediated antigen retrieval using Antigen Retrieval Buffer (100X Tris-EDTA Buffer, pH 9.0) ab93684 (Tris/EDTA buffer, pH 9.0).
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