Human EGFR (Tyr1068) In-Cell ELISA Kit (ab126420)


  • Product name
    Human EGFR (Tyr1068) In-Cell ELISA Kit
  • Detection method
  • Sample type
    Adherent cells
  • Assay type
    Cell-based (qualitative)
  • Assay time
    5h 10m
  • Assay duration
    Multiple steps standard assay
  • Species reactivity
    Reacts with: Human
  • Product overview

    ab126420 is a very rapid, convenient and sensitive assay kit that can monitor the activation or function of important biological pathways in cells. It can be used for measuring the relative amount of EGFR (Tyr1068) phosphorylation and screening the effects of various treatments, inhibitors (such as siRNA or chemicals), or activators in cultured Human cell lines. By determining EGFR protein phosphorylation in your experimental model system, you can verify pathway activation in your cell lines without spending excess time and effort in preparing cell lysate and performing an analysis of Western Blot.

    In the EGFR (Tyr1068) Human In-Cell ELISA Kit, cells are seeded into a 96 well tissue culture plate. The cells are fixed after various treatments, inhibitors or activators. After blocking, anti-Phospho-EGFR (Tyr1068) or anti-EGFR (primary antibody) is pipetted into the wells and incubated. The wells are washed, and HRP-conjugated anti-rabbit IgG (secondary antibody) is added to the wells. The wells are washed again, a TMB substrate solution is added to the wells and color develops in proportion to the amount of protein. The Stop Solution changes the color from blue to yellow, and the intensity of the color is measured at 450 nm.

  • Tested applications
    Suitable for: In-Cell ELISAmore details
  • Platform


  • Storage instructions
    Store at -20°C. Please refer to protocols.
  • Components 1 x 96 tests
    Anti-Rabbit IgG Concentrate (Item I-1) 1 x 10µl
    5X Blocking Buffer Concentrate (Item F) 1 x 20ml
    Fixing Solution (Item D) 1 x 30ml
    Uncoated 96-well Microplate (Item A) 1 unit
    Quenching Buffer Concentrate (30x) (Item E) 1 x 2ml
    Rabbit Anti-EGFR Concentrate (Item H) 1 x 6µl
    Rabbit Anti-Phospho-EGFR (Tyr1068) Concentrate (Item G) 1 x 6µl
    Stop Solution 1 x 14ml
    TMB One-Step Substrate Reagent 1 x 12ml
    20X Wash Buffer A Concentrate (Item B) 1 x 30ml
    20X Wash Buffer B Concentrate (Item C) 1 x 30ml
  • Research areas
  • Function
    Receptor for EGF, but also for other members of the EGF family, as TGF-alpha, amphiregulin, betacellulin, heparin-binding EGF-like growth factor, GP30 and vaccinia virus growth factor. Is involved in the control of cell growth and differentiation. Phosphorylates MUC1 in breast cancer cells and increases the interaction of MUC1 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
    Defects in EGFR are associated with lung cancer (LNCR) [MIM:211980].
  • Sequence similarities
    Belongs to the protein kinase superfamily. Tyr protein kinase family. EGF receptor subfamily.
    Contains 1 protein kinase domain.
  • Post-translational
    Phosphorylation of Ser-695 is partial and occurs only if Thr-693 is phosphorylated.
    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 occur.
  • Cellular localization
    Secreted and Cell membrane. Endoplasmic reticulum membrane. Golgi apparatus membrane. Nucleus membrane. Endosome. In response to EGF, translocated from the cell membrane to the nucleus via Golgi and ER. Co-localizes with TNK2 on the endosomes.
  • Information by UniProt
  • Alternative names
    • Avian erythroblastic leukemia viral (v erb b) oncogene homolog
    • Cell growth inhibiting protein 40
    • Cell proliferation inducing protein 61
    • EGFR
    • Epidermal growth factor receptor
    • ERBB
    • ErbB 1
    • ERBB1
    • Errp
    • HER1
    • mENA
    • PIG61
    • Proto oncogene c ErbB 1
    • Proto-oncogene c-ErbB-1
    • Receptor tyrosine protein kinase erbB 1
    • Receptor tyrosine-protein kinase ErbB-1
    see all
  • Database links


Our Abpromise guarantee covers the use of ab126420 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
In-Cell ELISA Use at an assay dependent concentration.


  • A431 cells were stimulated by different concentrations of EGF for 10 min at 37°C.

  • Western blot analysis of extracts from 100 ng/ml hEGF treated A431 cells. Phospho-EGFR (Tyr1068) and EGFR antibodies were used in both detection assays.
  • A431 cells were stimulated by different concentrations of EGF for 10 min at 37°C.



ab126420 has not yet been referenced specifically in any publications.

Customer reviews and Q&As

1. ab126420, the components of the blocking buffer are proprietary, and the solution is a standard blocking solution.

2. ab111542: The blocking solution in the kit is the same as the 10X blocking solution sold separately (ab126587). It is...

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