Date published: 2025-9-10

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ErbB2/HER2 Antibody (3B5): sc-33684

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Datasheets
  • ErbB2/HER2 Antibody (3B5) is a mouse monoclonal IgG1 κ ErbB2/HER2 antibody, cited in 73 publications, provided at 200 µg/ml
  • raised against a synthetic peptide corresponding to amino acids 1242-1255 of Neu of human origin
  • ErbB2/HER2 Antibody (3B5) is recommended for detection of Neu of mouse, rat and human origin by WB, IP, IF and IHC(P)
  • Anti-ErbB2/HER2 Antibody (3B5) is available conjugated to agarose for IP; HRP for WB, IHC(P) and ELISA; and to either phycoerythrin or FITC for IF, IHC(P) and FCM
  • also available conjugated to Alexa Fluor® 488, Alexa Fluor® 546, Alexa Fluor® 594 or Alexa Fluor® 647 for WB (RGB), IF, IHC(P) and FCM, and for use with RGB fluorescent imaging systems, such as iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • also available conjugated to Alexa Fluor® 680 or Alexa Fluor® 790 for WB (NIR), IF and FCM; for use with Near-Infrared (NIR) detection systems, such as LI-COR®Odyssey®, iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • Contact our Technical Service Department (or your local Distributor) for more information on how to receive a FREE 10 µg sample of ErbB2/HER2 (3B5): sc-33684.
  • m-IgG Fc BP-HRP, m-IgG1 BP-HRP and m-IgGκ BP-HRP are the preferred secondary detection reagents for ErbB2/HER2 Antibody (3B5) for WB and IHC(P) applications. These reagents are now offered in bundles with ErbB2/HER2 Antibody (3B5) (see ordering information below).

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SEE ALSO...

Neu Antibody (3B5) is a mouse monoclonal IgG1 kappa light chain antibody that detects the Neu protein of mouse, rat, and human origin by western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), and immunohistochemistry with paraffin-embedded sections (IHCP). anti-Neu antibody (3B5) is available in both non-conjugated and various conjugated forms, including agarose, horseradish peroxidase (HRP), phycoerythrin (PE), fluorescein isothiocyanate (FITC), and multiple Alexa Fluor® conjugates. Neu, also known as ErbB-2 or HER2, is a member of the epidermal growth factor receptor (EGFR) family, which consists of receptor tyrosine kinases that play critical roles in cell signaling pathways related to growth and differentiation. Neu is primarily located on the cell membrane, where binding with ligands can form homodimers or heterodimers with other EGFR family members, such as ErbB-3. This dimerization activates downstream signaling cascades, including the phosphoinositide 3-kinase pathway, which regulates cell proliferation, survival, and motility. Aberrant expression of Neu is associated with various cancers, particularly breast carcinoma, where amplification or overexpression occurs in 20-30% of cases, making Neu a significant biomarker for disease prognosis and a potential target for therapeutic interventions. Neu monoclonal antibody (3B5) enables researchers to gain valuable insights into Neu′s role in cancer biology and therapeutic potential.

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

ErbB2/HER2 Antibody (3B5)

sc-33684
200 µg/ml
$316.00

ErbB2/HER2 Antibody (3B5): m-IgG Fc BP-HRP Bundle

sc-528486
200 µg Ab; 10 µg BP
$354.00

ErbB2/HER2 Antibody (3B5): m-IgGκ BP-HRP Bundle

sc-520877
200 µg Ab, 40 µg BP
$354.00

ErbB2/HER2 Antibody (3B5): m-IgG1 BP-HRP Bundle

sc-542962
200 µg Ab; 20 µg BP
$354.00

ErbB2/HER2 Antibody (3B5) AC

sc-33684 AC
500 µg/ml, 25% agarose
$416.00

ErbB2/HER2 Antibody (3B5) HRP

sc-33684 HRP
200 µg/ml
$316.00

ErbB2/HER2 Antibody (3B5) FITC

sc-33684 FITC
200 µg/ml
$330.00

ErbB2/HER2 Antibody (3B5) PE

sc-33684 PE
200 µg/ml
$343.00

ErbB2/HER2 Antibody (3B5) Alexa Fluor® 488

sc-33684 AF488
200 µg/ml
$357.00

ErbB2/HER2 Antibody (3B5) Alexa Fluor® 546

sc-33684 AF546
200 µg/ml
$357.00

ErbB2/HER2 Antibody (3B5) Alexa Fluor® 594

sc-33684 AF594
200 µg/ml
$357.00

ErbB2/HER2 Antibody (3B5) Alexa Fluor® 647

sc-33684 AF647
200 µg/ml
$357.00

ErbB2/HER2 Antibody (3B5) Alexa Fluor® 680

sc-33684 AF680
200 µg/ml
$357.00

ErbB2/HER2 Antibody (3B5) Alexa Fluor® 790

sc-33684 AF790
200 µg/ml
$357.00

In a previous question you recommend performing antigen retrieval with sodium citrate buffer (pH 6) for Neu (3B5) and heat, but which antibody dilution do you recomend for FFPE tissue sections that don´t overexpress the receptor?

Asked by: MiguelC
Thank you for your question. We recommend a starting dilution of 1:50 for IHC applications, but conditions do need to be optimized for each antibody on each sample. We do recommend antigen retrieval for all formalin fixed samples.
Answered by: Tech Service
Date published: 2019-10-22

Does Neu(3B5) Ab recognize the phospho-Neu or the non phosphorilated one?

Asked by: vall
Thank you for your question. This antibody is not phospho-specific. It is a total Neu antibody, able to detect both non-phosphorylated and phosphorylated forms of Neu. Please see the Western blot data on our website demonstrating this reactivity in Neuregulin-1 treated, and lambda protein phosphatase treated MCF-7 whole cell lysates.
Answered by: Technical Support
Date published: 2024-05-29

Detektiert der Ak sc-33684 das Molakül ErbB2 im extrazellulären Teil, also bei intakten Zellen?

Asked by: FDMGV007
Vielen Dank für Ihre Anfrage und Ihr Interesse an diesem Produkt. Der Neu Antikörper (3B5): sc-33684 wurde gegen ein synthetisches Peptid gezogen, welches der Region AS 1242-1255 des humanen ERBB2 (Neu) Proteins entspricht. Diese befindet sich in der zytoplasmatischen Domäne des ERBB2 Proteins (AS 676 – 1255 laut uniprot). Der Antikörper sollte daher den extrazellulären Teil des Protein vermutlich nicht erkennen. Für weitere Informationen wenden Sie sich bitte an unseren Technischen Service in unserem Europäischen Supportbüro in Heidelberg. Sie erreichen uns telefonisch unter 06221 4503 0, per email an: europe@scbt.com oder per Live-Chat auf unserer Webseite www.scbt.com Wir freuen uns Ihnen weiterzuhelfen.
Answered by: Technical Support Europe
Date published: 2017-07-06

Can Neu (3B5): sc-33684 monoclonal antibody be used to stain formalin-fixed, paraffin-embedded (FFPE) tissue sections?

Asked by: jenniferc
Thank you for your question. Yes, Neu (3B5): sc-33684 monoclonal antibody has been validated for use in IHC with paraffin-embedded sections. We recommend performing antigen retrieval with sodium citrate buffer (pH 6) and heat. The full protocol can be found here: https://www.scbt.com/scbt/resources/protocols/immunoperoxidase-staining
Answered by: Technical Support 3
Date published: 2023-07-26
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Rated 4 out of 5 by from Buon anticorpoAnticorpo che funziona bene per western blot senza bande aspecifiche
Date published: 2024-10-17
Rated 5 out of 5 by from ASSISTANT PROFESSORWe request free sample for this antibodies months ago. We love it, it gave very strong and clean band on Western.
Date published: 2020-03-02
Rated 5 out of 5 by from greatStrong 180kd band was detected by western blotting with SK-BR-3 cells lysate in dilution 1:500
Date published: 2019-08-27
Rated 3 out of 5 by from Antibody is okayGot bands without confusing non-specific binding, but not as clear and defined as I hope it would be.
Date published: 2019-03-04
Rated 4 out of 5 by from Good option for WB and IFNot very strong but positive WB band in human primary cells that don't overexpress the receptor. Also work for IF.
Date published: 2018-11-04
Rated 4 out of 5 by from anti Neu Antibody (3B5) sc-33684anti Neu Antibody (3B5) sc-33684 in IHC stained in green
Date published: 2018-10-19
Rated 4 out of 5 by from works great for WBStrong 180kd band was detected by western blotting with hela cells lysate in dilution 1:1000.
Date published: 2018-05-02
Rated 4 out of 5 by from Good result on mouse tissueGood result at 1/50 with breast tumour mouse tissue
Date published: 2018-03-15
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ErbB2/HER2 Antibody (3B5) is rated 4.4 out of 5 by 35.
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