Anti-EGFR antibody [31G7] (ab218383)

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Key features and details

  • Mouse monoclonal [31G7] to EGFR
  • Suitable for: Protein Array, IHC-P
  • Reacts with: Human
  • Isotype: IgG2a

Overview

  • Product name

    Anti-EGFR antibody [31G7]
    See all EGFR primary antibodies

  • Description

    Mouse monoclonal [31G7] to EGFR

  • Host species

    Mouse

  • Tested applications

    Suitable for: Protein Array, IHC-Pmore details

  • Species reactivity

    Reacts with: Human

  • Immunogen

    Full length native protein (purified) corresponding to Human EGFR. (Purified from A431 cells).
    Database link: P00533

  • Positive control

    • Human placenta tissue.

  • General notes

    Reproducibility is key to advancing scientific discovery and accelerating scientists’ next breakthrough.

    Abcam is leading the way with our range of recombinant antibodies, knockout-validated antibodies and knockout cell lines, all of which support improved reproducibility.

    We are also planning to innovate the way in which we present recommended applications and species on our product datasheets, so that only applications & species that have been tested in our own labs, our suppliers or by selected trusted collaborators are covered by our Abpromise™ guarantee.

    In preparation for this, we have started to update the applications & species that this product is Abpromise guaranteed for.

    We are also updating the applications & species that this product has been “predicted to work with,” however this information is not covered by our Abpromise guarantee.

    Applications & species from publications and Abreviews that have not been tested in our own labs or in those of our suppliers are not covered by the Abpromise guarantee.

    Please check that this product meets your needs before purchasing. If you have any questions, special requirements or concerns, please send us an inquiry and/or contact our Support team ahead of purchase. Recommended alternatives for this product can be found below, as well as customer reviews and Q&As.

Properties

Applications

Our Abpromise guarantee covers the use of ab218383 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
Protein Array Use at an assay dependent concentration.
IHC-P Use a concentration of 2 - 4 µg/ml. Perform enzymatic antigen retrieval before commencing with IHC staining protocol.

(Primary incubation for 30 minutes at RT).

Target

  • Function

    Receptor tyrosine kinase binding ligands of the EGF family and activating several signaling cascades to convert extracellular cues into appropriate cellular responses. Known ligands include EGF, TGFA/TGF-alpha, amphiregulin, epigen/EPGN, BTC/betacellulin, epiregulin/EREG and HBEGF/heparin-binding EGF. Ligand binding triggers receptor homo- and/or heterodimerization and autophosphorylation on key cytoplasmic residues. The phosphorylated receptor recruits adapter proteins like GRB2 which in turn activates complex downstream signaling cascades. Activates at least 4 major downstream signaling cascades including the RAS-RAF-MEK-ERK, PI3 kinase-AKT, PLCgamma-PKC and STATs modules. May also activate the NF-kappa-B signaling cascade. Also directly phosphorylates other proteins like RGS16, activating its GTPase activity and probably coupling the EGF receptor signaling to the G protein-coupled receptor signaling. Also phosphorylates MUC1 and increases its interaction with SRC and CTNNB1/beta-catenin.
    Isoform 2 may act as an antagonist of EGF action.

  • Tissue specificity

    Ubiquitously expressed. Isoform 2 is also expressed in ovarian cancers.

  • Involvement in disease

    Lung cancer
    Inflammatory skin and bowel disease, neonatal, 2

  • Sequence similarities

    Belongs to the protein kinase superfamily. Tyr protein kinase family. EGF receptor subfamily.
    Contains 1 protein kinase domain.

  • Post-translational
    modifications

    Phosphorylation at Ser-695 is partial and occurs only if Thr-693 is phosphorylated. Phosphorylation at Thr-678 and Thr-693 by PRKD1 inhibits EGF-induced MAPK8/JNK1 activation. Dephosphorylation by PTPRJ prevents endocytosis and stabilizes the receptor at the plasma membrane. Autophosphorylation at Tyr-1197 is stimulated by methylation at Arg-1199 and enhances interaction with PTPN6. Autophosphorylation at Tyr-1092 and/or Tyr-1110 recruits STAT3. Dephosphorylated by PTPN1 and PTPN2.
    Monoubiquitinated and polyubiquitinated upon EGF stimulation; which does not affect tyrosine kinase activity or signaling capacity but may play a role in lysosomal targeting. Polyubiquitin linkage is mainly through 'Lys-63', but linkage through 'Lys-48', 'Lys-11' and 'Lys-29' also occurs. Deubiquitination by OTUD7B prevents degradation. Ubiquitinated by RNF115 and RNF126.
    Methylated. Methylation at Arg-1199 by PRMT5 stimulates phosphorylation at Tyr-1197.

  • Cellular localization

    Secreted and Cell membrane. Endoplasmic reticulum membrane. Golgi apparatus membrane. Nucleus membrane. Endosome. Endosome membrane. Nucleus. In response to EGF, translocated from the cell membrane to the nucleus via Golgi and ER. Endocytosed upon activation by ligand. Colocalized with GPER1 in the nucleus of estrogen agonist-induced cancer-associated fibroblasts (CAF).
  • Information by UniProt

  • Database links

    • Alternative names

      • Avian erythroblastic leukemia viral (v erb b) oncogene homolog antibody
      • Cell growth inhibiting protein 40 antibody
      • Cell proliferation inducing protein 61 antibody
      • EGF R antibody
      • EGFR antibody
      • EGFR_HUMAN antibody
      • Epidermal growth factor receptor (avian erythroblastic leukemia viral (v erb b) oncogene homolog) antibody
      • Epidermal growth factor receptor (erythroblastic leukemia viral (v erb b) oncogene homolog avian) antibody
      • Epidermal growth factor receptor antibody
      • erb-b2 receptor tyrosine kinase 1 antibody
      • ERBB antibody
      • ERBB1 antibody
      • Errp antibody
      • HER1 antibody
      • mENA antibody
      • NISBD2 antibody
      • Oncogen ERBB antibody
      • PIG61 antibody
      • Proto-oncogene c-ErbB-1 antibody
      • Receptor tyrosine protein kinase ErbB 1 antibody
      • Receptor tyrosine-protein kinase ErbB-1 antibody
      • SA7 antibody
      • Species antigen 7 antibody
      • Urogastrone antibody
      • v-erb-b Avian erythroblastic leukemia viral oncogen homolog antibody
      • wa2 antibody
      • Wa5 antibody
      see all

    Images

    • Protein Array - Anti-EGFR antibody [31G7] (ab218383)
      Protein Array - Anti-EGFR antibody [31G7] (ab218383)
      ab218383 was tested in protein array against over 19000 different full-length human proteins.
      Z- and S- Score: The Z-score represents the strength of a signal that a monoclonal antibody (MAb) (in combination with a fluorescently-tagged anti-IgG secondary antibody) produces when binding to a particular protein on the HuProtTM array. Z-scores are described in units of standard deviations (SD's) above the mean value of all signals generated on that array. If targets on HuProtTM are arranged in descending order of the Z-score, the S-score is the difference (also in units of SD's) between the Z-score. S-score therefore represents the relative target specificity of a MAb to its intended target.
      A MAb is specific to its intended target if the MAb has an S-score of at least 2.5. For example, if a MAb binds to protein X with a Z-score of 43 and to protein Y with a Z-score of 14, then the S-score for the binding of that MAb to protein X is equal to 29.
    • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-EGFR antibody [31G7] (ab218383)
      Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-EGFR antibody [31G7] (ab218383)

      Immunohistochemical analysis of formalin-fixed, paraffin-embedded human placenta tissue labeling EGFR with ab218383 at 4 µg/ml.

    References (2)

    Publishing research using ab218383? Please let us know so that we can cite the reference in this datasheet.

    ab218383 has been referenced in 2 publications.

    • Petersen I  et al. EGFR immunohistochemistry as biomarker for antibody-based therapy of squamous NSCLC - Experience from the first ring trial of the German Quality Assurance Initiative for Pathology (QuIP®). Pathol Res Pract 213:1530-1535 (2017). PubMed: 29108919
    • Kim HW  et al. Breed- and age-related differences in canine mammary tumors. Can J Vet Res 80:146-55 (2016). PubMed: 27127342

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