Anti-ErbB 2 (phospho Y877) antibody [EP2324Y] (ab108371)


  • Product nameAnti-ErbB 2 (phospho Y877) antibody [EP2324Y]
    See all ErbB 2 primary antibodies
  • Description
    Rabbit monoclonal [EP2324Y] to ErbB 2 (phospho Y877)
  • Specificityab108371 detects ErbB 2 phosphorylated at tyrosine 877.
  • Tested applicationsWB, IHC-P, ICC/IFmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    A phospho - specific peptide corresponding to residues surrounding tyrosine 877 of Human ErbB 2.

  • Positive control
    • HeLa cell lysate, SKBR-3 cell lysate, Human breast ductal infiltrating carcinoma tissue, SKBR-3 cells.
  • General notes

    Produced using Abcam’s RabMAb® technology. RabMAb® technology is covered by the following U.S. Patents, No. 5,675,063 and/or 7,429,487.

    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 Abpromise guarantee covers the use of ab108371 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB 1/500 - 1/1000. Predicted molecular weight: 138 kDa.
IHC-P 1/250 - 1/500. Perform antigen retrieval before commencing with IHC staining protocol
ICC/IF 1/50 - 1/100.
  • Application notesIs unsuitable for Flow Cyt or IP.
  • Target

    • FunctionProtein 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.
    • Tissue specificityExpressed in a variety of tumor tissues including primary breast tumors and tumors from small bowel, esophagus, kidney and mouth.
    • Involvement in diseaseHereditary diffuse gastric cancer
      Ovarian cancer
      Lung cancer
      Gastric cancer
      Chromosomal aberrations involving ERBB2 may be a cause gastric cancer. Deletions within 17q12 region producing fusion transcripts with CDK12, leading to CDK12-ERBB2 fusion leading to truncated CDK12 protein not in-frame with ERBB2.
    • Sequence similaritiesBelongs to the protein kinase superfamily. Tyr protein kinase family. EGF receptor subfamily.
      Contains 1 protein kinase domain.
    • Post-translational
      Autophosphorylated. Ligand-binding increases phosphorylation on tyrosine residues. Autophosphorylation occurs in trans, i.e. one subunit of the dimeric receptor phosphorylates tyrosine residues on the other subunit. Signaling via SEMA4C promotes phosphorylation at Tyr-1248.
    • Cellular localizationCytoplasm. Nucleus and Cell membrane. Cytoplasm > perinuclear region. Nucleus. Translocation to the nucleus requires endocytosis, probably endosomal sorting and is mediated by importin beta-1/KPNB1.
    • Information by UniProt
    • Database links
    • Alternative names
      • Verb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog antibody
      • C erb B2/neu protein antibody
      • CD340 antibody
      • CD340 antigen antibody
      • Cerb B2/neu protein antibody
      • CerbB2 antibody
      • ERBB2 antibody
      • ERBB2_HUMAN antibody
      • HER 2 antibody
      • HER 2/NEU antibody
      • HER2 antibody
      • Herstatin antibody
      • Metastatic lymph node gene 19 protein antibody
      • MLN 19 antibody
      • MLN19 antibody
      • NEU antibody
      • NEU proto oncogene antibody
      • Neuroblastoma/glioblastoma derived oncogene homolog antibody
      • NGL antibody
      • p185erbB2 antibody
      • Proto-oncogene c-ErbB-2 antibody
      • Proto-oncogene Neu antibody
      • Receptor tyrosine-protein kinase erbB-2 antibody
      • TKR1 antibody
      • Tyrosine kinase type cell surface receptor HER2 antibody
      • Tyrosine kinase-type cell surface receptor HER2 antibody
      • V erb b2 avian erythroblastic leukemia viral oncogene homolog 2 (neuro/glioblastoma derived oncogene homolog) antibody
      • V erb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog (avian) antibody
      • Verb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog (avian) antibody
      • Verb b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog antibody
      see all

    Anti-ErbB 2 (phospho Y877) antibody [EP2324Y] images

    • All lanes : Anti-ErbB 2 (phospho Y877) antibody [EP2324Y] (ab108371) at 1/500 dilution

      Lane 1 : HeLa cell lysate
      Lane 2 : EGF treated HeLa cell lysate
      Lane 3 : SKBR-3 cell lysate
      Lane 4 : EGF treated SKBR-3 cell lysate

      Lysates/proteins at 10 µg per lane.

      Predicted band size : 138 kDa
    • ab108371, at 1/250, staining Human ErbB 2 (phospho Y877) in Human breast ductal infiltrating carcinoma tissue by immunohistochemistry.
    • ab108371, at 1/50 dilution, staining Human ErbB 2 (phospho Y877) in SKBR-3 cells by immunofluorescence.

    References for Anti-ErbB 2 (phospho Y877) antibody [EP2324Y] (ab108371)

    ab108371 has not yet been referenced specifically in any publications.

    Product Wall

    Thank you for contacting Abcam. The anti-ErbB 2 (phospho Y877) antibody [EP2324Y], ab108371 will not react with mouse samples. However ab47262, will work in mouse samples and detects Y877 phosphorylated residue. If there is anything else I can do, plea...

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