Recombinant Anti-GCN2 (phospho T899) antibody [EPR2320Y] - BSA and Azide free (ab157776)


  • Product name

    Anti-GCN2 (phospho T899) antibody [EPR2320Y] - BSA and Azide free
    See all GCN2 primary antibodies
  • Description

    Rabbit monoclonal [EPR2320Y] to GCN2 (phospho T899) - BSA and Azide free
  • Host species

  • Tested applications

    Suitable for: Dot blot, WBmore details
    Unsuitable for: Flow Cyt,ICC/IF,IHC-P or IP
  • Species reactivity

    Reacts with: Human
  • Immunogen

    Synthetic peptide within Human GCN2 (phospho T899). The exact sequence is proprietary.

  • General notes

    ab157776 is the carrier-free version of ab75836 This format is designed for use in antibody labeling, including fluorochromes, metal isotopes, oligonucleotides, enzymes.


    Our carrier-free formats are supplied in a buffer free of BSA, sodium azide and glycerol for higher conjugation efficiency.

    Use our conjugation kits  for antibody conjugates that are ready-to-use in as little as 20 minutes with <1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

    Ab157776 is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm.

    Maxpar® is a trademark of Fluidigm Canada Inc.

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

    This product is a recombinant rabbit monoclonal antibody.



Our Abpromise guarantee covers the use of ab157776 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
Dot blot Use at an assay dependent concentration.
WB Use at an assay dependent concentration. Detects a band of approximately 220 kDa (predicted molecular weight: 187 kDa).
  • Application notes
    Is unsuitable for Flow Cyt,ICC/IF,IHC-P or IP.
  • Target

    • Function

      Can phosphorylate the alpha subunit of EIF2 and may mediate translational control.
    • Tissue specificity

      Widely expressed.
    • Sequence similarities

      Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. GCN2 subfamily.
      Contains 2 protein kinase domains.
      Contains 1 RWD domain.
    • Domain

      Kinase domain 1 is a degenerate kinase domain.
      RWD domain is reported to interact with GCN1L1.
    • Post-translational

      Autophosphorylated on threonine residues.
    • Information by UniProt
    • Database links

    • Alternative names

      • E2AK4_HUMAN antibody
      • Eif2ak4 antibody
      • Eukaryotic Translation Initiation Factor 2 alpha kinase 4 antibody
      • Eukaryotic translation initiation factor 2-alpha kinase 4 antibody
      • GCN2 antibody
      • GCN2 eIF2alpha kinase antibody
      • GCN2 like protein antibody
      • GCN2-like protein antibody
      • KIAA1338 antibody
      • MGCN2 antibody
      see all


    • Dot blot analysis of GCN2 (phospho T899) phospho peptide (Lane 1) and GCN2 non-phospho peptide (Lane 2) labelling GCN2 (phospho T899) phospho peptide with ab75836 at a dilution of 1:1000 dilution (0.277μg/ml). A Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated (ab97051) was used as the secondary antibody at a dilution of 1:20,000 dilution. Blocking buffer: 5% NFDM/TBST. Dilution buffer: 5% NFDM /TBST .

      This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab75836).


    ab157776 has not yet been referenced specifically in any publications.

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