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AB91633

Anti-ErbB2 / HER2 (phospho Y1221 + Y1222) antibody [EPR1047]

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(2 Publications)

Rabbit Recombinant Monoclonal ErbB2 / HER2 phospho Y1221 + Y1222 antibody. Suitable for Dot, WB and reacts with Synthetic peptide, Human samples. Cited in 2 publications.

View Alternative Names

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

2 Images
Western blot - Anti-ErbB2 / HER2 (phospho Y1221 + Y1222) antibody [EPR1047] (AB91633)
  • WB

Unknown

Western blot - Anti-ErbB2 / HER2 (phospho Y1221 + Y1222) antibody [EPR1047] (AB91633)

All lanes:

Western blot - Anti-ErbB2 / HER2 (phospho Y1221 + Y1222) antibody [EPR1047] (ab91633) at 1/5000 dilution

Lane 1:

SKBR3 cell lysate was untreated at 10 µg

Lane 2:

SKBR3 cell lysate was treated with Lambda phosphatase. at 10 µg

Secondary

All lanes:

HRP labelled goat anti-rabbit at 1/1000 dilution

Predicted band size: 137 kDa

false

Dot Blot - Anti-ErbB2 / HER2 (phospho Y1221 + Y1222) antibody [EPR1047] (AB91633)
  • Dot

Unknown

Dot Blot - Anti-ErbB2 / HER2 (phospho Y1221 + Y1222) antibody [EPR1047] (AB91633)

Primary antibody dilution : 1/1000

Secondary antibody : goat anti-rabbit IgG (H+L) peroxidase conjugated

Secondary antibody dilution : 1/2500

Blocking & dilution buffer : 5% NFDM/TBST

Lane 1 sample : ErB 2 (pY1221/pY1222) phospho peptide

Lane 2 sample : ErB 2 non-phospho peptide

Exposure time : 3 minutes

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EPR1047

Isotype

IgG

Carrier free

No

Reacts with

Human

Applications

WB, Dot

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

Specificity

ab91633 detects ErbB 2 phosphorylated at tyrosine 1222.

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "IP" : {"fullname" : "Immunoprecipitation", "shortname":"IP"}, "FlowCyt" : {"fullname" : "Flow Cytometry", "shortname":"Flow Cyt"}, "Dot" : {"fullname" : "Dot Blot", "shortname":"Dot"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"}, "ICCIF" : {"fullname" : "Immunocytochemistry/ Immunofluorescence", "shortname":"ICC/IF"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "IP-species-checked": "notRecommended", "IP-species-dilution-info": "", "IP-species-notes": "<p></p>", "FlowCyt-species-checked": "notRecommended", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "<p></p>", "Dot-species-checked": "guaranteed", "Dot-species-dilution-info": "", "Dot-species-notes": "", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/5000", "WB-species-notes": "<p></p>", "IHCP-species-checked": "notRecommended", "IHCP-species-dilution-info": "", "IHCP-species-notes": "<p></p>", "ICCIF-species-checked": "notRecommended", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "<p></p>" }, "Synthetic peptide": { "IP-species-checked": "notRecommended", "IP-species-dilution-info": "", "IP-species-notes": "", "FlowCyt-species-checked": "notRecommended", "FlowCyt-species-dilution-info": "", "FlowCyt-species-notes": "", "Dot-species-checked": "testedAndGuaranteed", "Dot-species-dilution-info": "", "Dot-species-notes": "<p></p>", "WB-species-checked": "notRecommended", "WB-species-dilution-info": "", "WB-species-notes": "", "IHCP-species-checked": "notRecommended", "IHCP-species-dilution-info": "", "IHCP-species-notes": "", "ICCIF-species-checked": "notRecommended", "ICCIF-species-dilution-info": "", "ICCIF-species-notes": "" } } }
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Product details

Species reactivity
Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species.
Please contact us for more information.

Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

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Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
pH: 7.2 - 7.4 Preservative: 0.01% Sodium azide Constituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Storage information
Stable for 12 months at -20°C
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Supplementary information

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.
Biological function summary

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.

Pathways

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.
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Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:
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Target data

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.
See full target information ERBB2 pY1221 + Y1222
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Publications (2)

Recent publications for all applications. Explore the full list and refine your search

Cell discovery 9:18 PubMed36781849

2023

Structure and dynamics of the EGFR/HER2 heterodimer.

Applications

Unspecified application

Species

Unspecified reactive species

Xue Bai,Pengyu Sun,Xinghao Wang,Changkun Long,Shuyun Liao,Song Dang,Shangshang Zhuang,Yongtao Du,Xinyi Zhang,Nan Li,Kangmin He,Zhe Zhang

Oncogene 35:1554-64 PubMed26073080

2015

ErbB3 upregulation by the HNSCC 3D microenvironment modulates cell survival and growth.

Applications

Unspecified application

Species

Unspecified reactive species

J O Humtsoe,E Pham,R J Louie,D A Chan,R H Kramer
View all publications
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Product promise

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