Anti-Glutamate receptor 3 / GluA3 antibody [EP813Y] (ab40845)


  • Product name
    Anti-Glutamate receptor 3 / GluA3 antibody [EP813Y]
    See all Glutamate receptor 3 / GluA3 primary antibodies
  • Description
    Rabbit monoclonal [EP813Y] to Glutamate receptor 3 / GluA3
  • Host species
  • Tested applications
    Suitable for: WBmore details
    Unsuitable for: Flow Cyt,IHC-P or IP
  • Species reactivity
    Reacts with: Mouse, Rat, Human
  • Immunogen

    Synthetic peptide within Human Glutamate receptor 3/ GluA3 aa 250-350. The exact sequence is proprietary.
    Database link: P42263

  • Positive control
    • WB: Human brain tissue lysate.
  • General notes

    Previously labelled as Glutamate receptor 3. 

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

    We are constantly working hard to ensure we provide our customers with best in class antibodies. As a result of this work we are pleased to now offer this antibody in purified format. We are in the process of updating our datasheets. The purified format is designated 'PUR' on our product labels. If you have any questions regarding this update, please contact our Scientific Support team.

    This product is a recombinant rabbit monoclonal antibody.



Our Abpromise guarantee covers the use of ab40845 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 1/1000 - 1/5000. Detects a band of approximately 95 kDa (predicted molecular weight: 99 kDa).
  • Application notes
    Is unsuitable for Flow Cyt,IHC-P or IP.
  • Target

    • Function
      Ionotropic glutamate receptor. L-glutamate acts as an excitatory neurotransmitter at many synapses in the central nervous system. Binding of the excitatory neurotransmitter L-glutamate induces a conformation change, leading to the opening of the cation channel, and thereby converts the chemical signal to an electrical impulse. The receptor then desensitizes rapidly and enters a transient inactive state, characterized by the presence of bound agonist.
    • Involvement in disease
      Defects in GRIA3 are the cause of mental retardation X-linked type 94 (MRX94) [MIM:300699]. Mental retardation is characterized by significantly sub-average general intellectual functioning associated with impairments in adaptative behavior and manifested during the developmental period. MRX94 patients have moderate mental retardation. Other variable features are macrocephaly, seizures, myoclonic jerks, autistic behavior, asthenic body habitus, distal muscle weakness and hyporeflexia.
    • Sequence similarities
      Belongs to the glutamate-gated ion channel (TC 1.A.10.1) family. GRIA3 subfamily.
    • Post-translational
      Palmitoylated. Depalmitoylated upon glutamate stimulation. Cys-621 palmitoylation leads to Golgi retention and decreased cell surface expression. In contrast, Cys-847 palmitoylation does not affect cell surface expression but regulates stimulation-dependent endocytosis.
    • Cellular localization
      Cell membrane. Cell junction > synapse > postsynaptic cell membrane.
    • Information by UniProt
    • Database links
    • Alternative names
      • AMPA 3 antibody
      • AMPA selective glutamate receptor 3 antibody
      • AMPA-selective glutamate receptor 3 antibody
      • dJ1171F9.1 antibody
      • GluA3 antibody
      • GLUK3 antibody
      • GluR 3 antibody
      • GLUR C antibody
      • GLUR K3 antibody
      • GluR-3 antibody
      • GluR-C antibody
      • GluR-K3 antibody
      • GLUR3 antibody
      • GLURC antibody
      • Glutamate ionotropic receptor AMPA type subunit 3 antibody
      • Glutamate receptor 3 antibody
      • Glutamate receptor C antibody
      • Glutamate receptor ionotrophic AMPA 3 antibody
      • Glutamate receptor ionotropic antibody
      • Glutamate receptor subunit 3 antibody
      • Glutamate receptor, ionotropic, AMPA 3 antibody
      • GRIA 3 antibody
      • Gria3 antibody
      • GRIA3_HUMAN antibody
      • Ionotrophic Glutamate Receptor antibody
      • MRX94 antibody
      see all


    • Anti-Glutamate receptor 3 / GluA3 antibody [EP813Y] (ab40845) at 1/1000 dilution (purified) + Human hippocampus lysates at 20 µg

      Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/20000 dilution

      Predicted band size: 99 kDa

      Blocking and diluting buffer: 5% NFDM/TBST

    • All lanes : Anti-Glutamate receptor 3 / GluA3 antibody [EP813Y] (ab40845) at 1/2000 dilution (purified)

      Lane 1 : Mouse hippocampus lysates
      Lane 2 : Rat brain lysates

      Lysates/proteins at 20 µg per lane.

      All lanes : Anti-Rabbit IgG (HRP), specific to the non-reduced form of IgG at 1/2000 dilution

      Predicted band size: 99 kDa
      Observed band size: 100 kDa
      why is the actual band size different from the predicted?

      Blocking and diluting buffer: 5% NFDM/TBST

    • Anti-Glutamate receptor 3 / GluA3 antibody [EP813Y] (ab40845) at 1/5000 dilution + human brain lysate at 10 µg

      Predicted band size: 99 kDa
      Observed band size: 95 kDa why is the actual band size different from the predicted?


    This product has been referenced in:
    • Yu X  et al. Endophilin A1 mediates seizure activity via regulation of AMPARs in a PTZ-kindled epileptic mouse model. Exp Neurol 304:41-57 (2018). WB . Read more (PubMed: 29481784) »
    • Adotevi NK & Leitch B Synaptic Changes in AMPA Receptor Subunit Expression in Cortical Parvalbumin Interneurons in the Stargazer Model of Absence Epilepsy. Front Mol Neurosci 10:434 (2017). Read more (PubMed: 29311821) »
    See all 6 Publications for this product

    Customer reviews and Q&As

    1-3 of 3 Abreviews or Q&A


    Thank you for your enquiry.

    I have found that several years ago ab40845 was incorrectly listed as an antibody to metabotropic glutamate receptor 3. However it was then correct to list as ionotropic receptor. Unfortunately some indications from the old metabotropic datasheet survived, including those 2 citations and some alternative names.

    So I can confirm ab40845 is specific for the ionotropic receptor. Also, the immunogen sequence is from amino acid 296 - 314 of the human protein.

    I will contact our IT department to have the metabotropic related items removed from this datasheet to make things more clear.

    I hope this is helpful. Please contact me again if you have any further questions.

    Read More


    I'm afraid we are unable to provide the peptide sequence, however we have performed a sequence alignment of the immunogen with the mGluR2 protein and can confirm that ab40845 is not predicted to cross react with mGluR2 due to very low homology. Please do not hesitate to contact us if you require further information.

    Read More


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