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>   home   >   Products   >   Primary Antibodies   >   Antibody Collections   >   Amyotrophic Lateral Sclerosis (ALS)   >   AMPA Receptor 1 (GluR1) (extracellular) Antibody   

AMPA Receptor 1 (GluR1) (extracellular) Antibody

Affinity purified polyclonal antibody

  • WB - AMPA Receptor 1 (GluR1) (extracellular) Antibody AG1264-025
    Western blot analysis of rat (lanes 1 and 3) and mouse (lanes 2 and 4) brain lysates:
    1, 2. Anti-AMPA Receptor 1 (GluA1) (extracellular) antibody (#AG1264), (1:200).
    3, 4. Anti-AMPA1 Receptor 1 (GluA1) (extracellular) antibody, preincubated with the control peptide antigen.
  • IHC - AMPA Receptor 1 (GluR1) (extracellular) Antibody AG1264-025
    Expression of AMPA Receptor 1 in mouse hippocampus Immunohistochemical staining of mouse hippocampus with Anti-AMPA Receptor 1 (GluA1) (extracellular) antibody (#AG1264). AMPA Receptor 1 (green) is present in the stratum oriens (Or) and radiatum (Ra) but not in the pyramidal layer (P). Staining of the same section with mouse anti-parvalbumin (red) identifies the pyramidal layer.
Product Information
  • Applications Legend:
  • WB=Western Blot
  • IHC=Immunohistochemistry
  • IHC-P=Immunohistochemistry (Paraffin-embedded Sections)
  • IHC-F=Immunohistochemistry (Frozen Sections)
  • IF=Immunofluorescence
  • FC=Flow Cytopmetry
  • IC=Immunochemistry
  • ICC=Immunocytochemistry
  • IP=Immunoprecipitation
  • DB=Dot Blot
  • CHIP=Chromatin Immunoprecipitation
  • FA=Fluorescence Assay
  • IEM=Immunoelectronmicroscopy
  • EIA=Enzyme Immunoassay
Primary Accession P19490
Reactivity Human, Mouse, Rat
Host Rabbit
Clonality Polyclonal
Calculated MW 101579 Da
Homology Mouse - 14/15 aminoacid residues identical; human - 12/15 amino acid residues identical.
Additional Information
Gene ID 50592
Other Names Glutamate receptor 1, GluR-1, AMPA-selective glutamate receptor 1, GluR-A, GluR-K1, Glutamate receptor ionotropic, AMPA 1, GluA1, Gria1, Glur1
Related products for control experimentsControl peptide antigen (supplied with the antibody free of charge).
Target/Specificity Peptide RTSDSRDHTRVDWKR(C), corresponding to amino acid residues 271-285 of rat AMPA Receptor 1ֲ (Accession P19490). Extracellular, N-terminus.
Dilution WB~~1:200-1:2000
Peptide Confirmation Confirmed by mass-spectrography and amino acid analysis.
Application Details Western blot analysis (WB): - Rat cortical lysate (1:2500) (see Banerjee, B. et al. (2013) in Product Citations). - Mouse brain lysate (1:2500) (see Yu, Y.J. et al. (2013) in Product Citations). Immunocytochemistry (IC): - Rat spinal cord primary culture (see Hennekinne, L. et al. (2013) in Product Citations). - Rat hippocampal neurons (16 μg/ml) (see Verpelli, C. et al. (2011) in Product Citations). Live cell imaging (LCI): - Rat hippocampal neurons (16 μg/ml) (see Verpelli, C. et al. (2011) in Product Citations).  
Format Affinity purified antibody, lyophilized powder
Reconstitution 50 µl or 0.2 ml deionized water, depending on the sample size.
Antibody Concentration After Reconstitution 0.8 mg/ml.
Buffer After Reconstitution
Storage Before ReconstitutionLyophilized powder can be stored intact at room temperature for several weeks. For longer periods, it should be stored at -20°C.
Storage After ReconstitutionThe reconstituted solution can be stored at 4ºC for up to 2 weeks. For longer periods, small aliquots should be stored at -20ºC or below. Avoid multiple freezing and thawing. The further dilutions should be made using a carrier protein such as BSA (1%). Centrifuge all antibody preparations before use (10000 × g 5 min).
Control Antigen Storage Before ReconstitutionLyophilized powder can be stored intact at room temperature for several weeks. For longer periods, it should be stored at -20°C.
Control Antigen Reconstitution 100 µl water.
Control Antigen Storage After Reconstitution-20ºC.
Preadsorption Control 1 µg peptide per 1 µg antibody.
Formulation Lyophilized powder. Resuspended antibody contains phosphate buffered saline (PBS), pH 7.4, 1% BSA, 0.025% NaN3.
Research Areas
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AMPA receptors are members of the glutamate receptor family of ion channels that also include the NMDA and Kainate receptors. The three subfamilies are named after the original synthetic agonists that were identified as selective ligands of each family. The α-amino-3-hydroxy-5-methyl-4-isoazolepropionic acid (AMPA) receptor subfamily includes four members AMPA1-AMPA4 that are also known as GluR1-GluR4 respectively. The functional AMPA channel is believed to be a tetramer, with most neuronal AMPA receptors being actually heterotetramers composed of AMPA1 plus AMPA2 or AMPA2 plus AMPA3, although homotetramers can also be found. AMPA receptors are permeable to cations Na+ and K+ and Ca2+.  The Ca2+ permeability is dependent on the presence of AMPA2: whenever this subunit is present, the channel will be impermeable to Ca2+. The Ca2+ permeability of the AMPA2 subunit is determined by the presence of an arginine (R) at a critical site in the pore loop instead of a glutamine (Q) present in the same site in the other AMPA subunits. A post-transcriptional process known as RNA editing determines the presence of this R. Since most AMPA2 subunits in the adult brain have undergone RNA editing and most AMPA receptors contain the AMPA2 subunit, most native AMPA receptors will be impermeable to Ca2+. Gating of AMPA receptors by glutamate is extremely fast and therefore the AMPA receptors mediate most excitatory (depolarizing) currents in the brain during basal neuronal activity. The depolarization caused by the activation of post-synaptic AMPA receptors is necessary for the activation of NMDA receptors that will open only in the presence of both glutamate and a depolarized membrane. Synaptic strength, defined as the level of post-synaptic depolarization, can be long term (hence the term long term potentiation, LTP) and therefore induce changes in signaling and protein synthesis in the activated neuron. These changes are associated with memory formation and learning. Changes in synaptic strength are thought to involve rapid movement of the AMPA receptors in and out of the synapses and a great deal of effort has focused in understanding the mechanisms that govern AMPA receptor trafficking.


References 1. Dingledine, R. et al. (1999) Pharmacol. Rev. 51, 7. 2. Sheng, M. and Lee, S.H. (2001) Cell 105 825. 3. Song, I. and Huganir, R.L. (2002) Trends Neurosci. 25, 578.

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Cat# AG1264-025
(40 western blots)
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