Rabbit Recombinant Monoclonal ErbB2 / HER2 phospho Y1139 antibody. Suitable for IP, Dot, WB and reacts with Human, Synthetic peptide samples. Cited in 15 publications.
IgG
Rabbit
pH: 7.2 - 7.4
Preservative: 0.01% Sodium azide
Constituents: 50% Tissue culture supernatant, 40% Glycerol (glycerin, glycerine), 9% PBS, 0.05% BSA
Liquid
Monoclonal
IP | Dot | WB | IHC-P | ICC/IF | IHC-Fr | |
---|---|---|---|---|---|---|
Human | Tested | Expected | Tested | Not recommended | Not recommended | Not recommended |
Synthetic peptide | Not recommended | Tested | Not recommended | Not recommended | Not recommended | Not recommended |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 1/30 | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Synthetic peptide | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Synthetic peptide | Dilution info 1/1000 | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info Use at an assay dependent concentration. | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human | Dilution info 1/500 - 1/1000 | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Synthetic peptide | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human, Synthetic peptide | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human, Synthetic peptide | Dilution info - | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Human, Synthetic peptide | Dilution info - | Notes - |
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Protein tyrosine kinase that is part of several cell surface receptor complexes, but that apparently needs a coreceptor for ligand binding. Essential component of a neuregulin-receptor complex, although neuregulins do not interact with it alone. GP30 is a potential ligand for this receptor. Regulates outgrowth and stabilization of peripheral microtubules (MTs). Upon ERBB2 activation, the MEMO1-RHOA-DIAPH1 signaling pathway elicits the phosphorylation and thus the inhibition of GSK3B at cell membrane. This prevents the phosphorylation of APC and CLASP2, allowing its association with the cell membrane. In turn, membrane-bound APC allows the localization of MACF1 to the cell membrane, which is required for microtubule capture and stabilization.In the nucleus is involved in transcriptional regulation. Associates with the 5'-TCAAATTC-3' sequence in the PTGS2/COX-2 promoter and activates its transcription. Implicated in transcriptional activation of CDKN1A; the function involves STAT3 and SRC. Involved in the transcription of rRNA genes by RNA Pol I and enhances protein synthesis and cell growth.
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
Rabbit Recombinant Monoclonal ErbB2 / HER2 phospho Y1139 antibody. Suitable for IP, Dot, WB and reacts with Human, Synthetic peptide samples. Cited in 15 publications.
IgG
Rabbit
pH: 7.2 - 7.4
Preservative: 0.01% Sodium azide
Constituents: 50% Tissue culture supernatant, 40% Glycerol (glycerin, glycerine), 9% PBS, 0.05% BSA
Liquid
Monoclonal
EP1046Y
Affinity purification Protein A
Blue Ice
+4°C
-20°C
Upon delivery aliquot
Avoid freeze / thaw cycle
Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.
This product is a recombinant monoclonal antibody, which offers several advantages including:
For more information, read more on recombinant antibodies.
This supplementary information is collated from multiple sources and compiled automatically.
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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In the unlikely event of one of our products not working as expected, you are covered by our product promise.
Full details and terms and conditions can be found here:
Terms & Conditions.
ab53290 at 1/70 dilution immunoprecipitating ErbB 2 (phospho Y1139) in A431(human epidermoid carcinoma) whole cell lysate.
Lane 1 (input): A431treated with 100 ng/mL EGF for 10 minutes whole cell lysate 10μg
Lane 2 (+): ab53290 + A431 treated with 100 ng/mL EGF for 10 minutes whole cell lysate
Lane 3 (-): Rabbit monoclonal IgG (Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab172730) instead of ab53290 in A431treated with 100 ng/mL EGF for 10 minutes whole cell lysate
VeriBlot for IP Detection Reagent (HRP) (VeriBlot for IP Detection Reagent (HRP) ab131366), was used for detection at 1/1000 dilution.
Blocking and Diluting buffer and concentration: 5% NFDM/TBST.
All lanes: Immunoprecipitation - Anti-ErbB2 / HER2 (phospho Y1139) antibody [EP1046Y] (ab53290)
Predicted band size: 137 kDa
Observed band size: 185 kDa
Exposure time: 5s
Blocking and dilution buffer: 5% NFDM/TBST.
All lanes: Western blot - Anti-ErbB2 / HER2 (phospho Y1139) antibody [EP1046Y] (ab53290) at 1/500 dilution
Lane 1: A431 whole cell lysate - untreated at 10 µg
Lane 2: A431 whole cell lysate - treated with Epidermal Growth Factor (EGF) at 10 µg
All lanes: Peroxidase-conjugated goat anti-rabbit IgG (H+L) at 1/1000 dilution
Predicted band size: 137 kDa
Observed band size: 185 kDa
Exposure time: 3min
Dot blot analysis of ErbB 2 (pY1139) peptide (Lane 1) and ErbB 2 non-phospho peptide (Lane 2) labelling ErbB 2 (phospho Y1139) with ab53290 at a dilution of 1/1000. A Peroxidase-conjugated goat anti-rabbit IgG (H+L) was used as the secondary antibody at a dilution of 1/2500.
Blocking and dilution buffer: 5% NFDM/TBST.
Exposure time: 3 minutes.
All lanes: Western blot - Anti-ErbB2 / HER2 (phospho Y1139) antibody [EP1046Y] (ab53290) at 1/1000 dilution
Lane 1: SKBR3 cell lysate at 10 µg
Lane 2: SKBR3 cell lysate - treated with EGF at 10 µg
All lanes: HRP-conjugated goat anti-rabbit IgG at 1/2000 dilution
Predicted band size: 137 kDa
Observed band size: 185 kDa
Lanes 2-9 are treated with an increasing concentration of HER2 inhibitor.
Blocking performed with 5% Milk for 1 hour at room temperature.
Antibody diluted in CPPT and incubated for 16 hours at 4°C.
Performed under denaturing conditions.
All lanes: Western blot - Anti-ErbB2 / HER2 (phospho Y1139) antibody [EP1046Y] (ab53290) at 1/2000 dilution
Lane 1: HTB-2O Human breast ductal carcinoma lysate untreated at 10 µg
Lanes 2 - 9: HTB-2O Human breast ductal carcinoma lysate treated with HER-2 inhibitor at 10 µg
All lanes: HRP-conjugated Mouse anti-Rabbit monoclonal at 1/20000 dilution
Developed using the ECL technique.
Performed under reducing conditions.
Predicted band size: 137 kDa
Exposure time: 5s
Image collected and cropped by CiteAb under a CC-BY license from the publication
ErbB2 / HER2 (phospho Y1139) western blot using anti-ErbB2 / HER2 (phospho Y1139) antibody [EP1046Y] ab53290. Publication image and figure legend from Li, J., Ma, M., et al., 2020, Mol Cancer, PubMed 32917240.
ab53290 was used in this publication in western blot. This may not be the same as the application(s) guaranteed by Abcam. For a full list of applications guaranteed by Abcam for ab53290 please see the product overview.
HER2–103 promoted EGFR/HER3 interaction and activation in TNBC. a Circ-HER2 shRNAs or scramble shRNA stably transfected MDA-MB-231 or MDA-MB-468 cells, as well as circ-HER2 and circ-HER2 noATG vector stably transfected MDA-MB-231 or MDA-MB-468 cells were subjected to immunoblot with indicated antibodies. The transfection efficiency of above cells was verified by q-PCR. b circ-HER2 or circ-HER2 noATG vector stably transfected BT549 cells were subjected to immunoblot with indicated antibodies. The transfection efficiency was verified both by q-PCR. c Immunoprecipitation using HER3 or EGFR antibodies were performed in circ-HER2 shRNAs or scramble shRNA stably transfected MDA-MB-468 cells with indicated antibodies. d Left, circ-HER2 was stably transfected to MDA-MB-468 cells, HER2–103 was immunoprecipitated, followed by immunoblot with antibodies against EGFR and HER3; middle, EGFR and HER3 were immunoprecipitated in above mentioned cells, followed by immunoblot with antibodies against HER2–103. Right, circ-HER2 was stably transfected to MDA-MB-231 cells, HER2–103 or EGFR were immunoprecipitated followed by immunoblot with antibodies against EGFR and HER2–103. e Upper left, EGFR domains, namely, L1, CR1, L2, CR2, juxta-membrane (JM) segment and internal cellular domain (ICD). Upper right, HA-tagged EGFR domains and Flag-tagged HER2–103 were co-transfected into 293 T cells. Coimmunoprecipitated truncated EGFR protein was detected by anti-HA antibody after immunoprecipitation with anti-Flag antibody. Lower left, HER3 domains, namely, L1, CR1, L2, CR2, juxta-membrane (JM) segment and internal cellular domain (ICD). HA-tagged HER3 domains and Flag tagged HER2–103 were co-transfected into HEK293T cells. Coimmunoprecipitated truncated HER3 protein was detected by anti-HA antibody after immunoprecipitation with anti-Flag antibody. f HER2–103 was dose-dependently transfected into MDA-MB-468 cells. Interaction between EGFR/HER3 was determined mutually by immunoprecipitation, with indicated antibodies. g The kinase activity of EGFR pY1068 was detected following circ-HER2 stably transfection in MDA-MB-468 cells. Lines show the mean ± SD, ***, p < 0.001; **, p < 0.01; *p < 0.05. Data are representative from at least 2–3 experiments with similar results
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