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Home › Products › Transporters, Exchangers and Pumps › Glutamate Transporters › Antibodies

Certificate of Analysis

Anti-EAAT3 (EAAC1) Antibody

Excitatory amino acid transporter 3, Excitatory amino-acid carrier 1, Sodium-dependent glutamate/aspartate transporter 3, SLC1A1

Cat #: AGC-023
Alternative Name Excitatory amino acid transporter 3, Excitatory amino-acid carrier 1, Sodium-dependent glutamate/aspartate transporter 3, SLC1A1
Lyophilized Powder yes
Type: Polyclonal
Host: Rabbit
Reactivity: h, m, r
Immunogen
  • Peptide (C)EPTILDNEDSDTKK, corresponding to amino acid residues 487-500 of rat EAAT3 (Accession P51907). Intracellular, C-terminus.
Accession (Uniprot) Number P51907
Gene ID 25550
Peptide confirmation Confirmed by amino acid analysis and mass spectrometry.
Homology Mouse, human - 13/14 amino acid residues identical.
RRID AB_2039887.
Purity Affinity purified on immobilized antigen.
Form Lyophilized powder. Reconstituted antibody contains phosphate buffered saline (PBS), pH 7.4, 1% BSA, 0.05% NaN3.
Isotype Rabbit IgG.
Storage before reconstitution The antibody ships as a lyophilized powder at room temperature. Upon arrival, it should be stored at -20°C.
Reconstitution 50 μl or 0.2 ml double distilled water (DDW), depending on the sample size.
Antibody concentration after reconstitution 0.8 mg/ml.
Storage after reconstitution The reconstituted solution can be stored at 4°C for up to 1 week. For longer periods, small aliquots should be stored at -20°C. Avoid multiple freezing and thawing. Centrifuge all antibody preparations before use (10000 x g 5 min).
Standard quality control of each lot Western blot analysis.
Applications: ic, if, ih, wb
May also work in: ifc*, ip*
Western blot
  • Rat brain membranes (1:400) and mouse kidney lysate (1:400).
  • Western blot analysis of rat brain membranes:
    Western blot analysis of rat brain membranes:
    1. Anti-EAAT3 (EAAC1) Antibody (#AGC-023), (1:400).
    2. Anti-EAAT3 (EAAC1) Antibody, preincubated with EAAT3/EAAC1 Blocking Peptide (#BLP-GC023).
  • Western blot analysis of mouse kidney lysate:
    Western blot analysis of mouse kidney lysate:
    1. Anti-EAAT3 (EAAC1) Antibody (#AGC-023), (1:400).
    2. Anti-EAAT3 (EAAC1) Antibody, preincubated with EAAT3/EAAC1 Blocking Peptide (#BLP-GC023).
Immunohistochemistry
  • Rat brain sections (frozen), (1:200-1:400).
Immunocytochemistry
  • Mouse astrocytes and cerebellar neurons (Guitart, K. et al. (2015) J. Neurochem. 133, 558).
Scientific background

L-Glutamate (Glu) is an abundant amino acid that functions as the major excitatory neurotransmitter in the central nervous system. However, excess of Glu in the extracellular synaptic milieu leads to neuronal cell death by a process known as excitotoxicity.

The extracellular levels of Glu are regulated by a family of high affinity plasma membrane transporters called excitatory amino acid transporters (EAATs) which are responsible for the re-uptake of Glu into the cells1,2.

The EAAT family includes five members (EAAT1-EAAT5) that are members of the solute carrier family 1 (SLC1) of Na+-dependent transporters that also includes the neutral amino acid transporters ASCT1 and ASCT2.

The Glu transporters present an unusual topology of eight transmembrane domains with two re-entrant loops and intracellular N- and C- termini. The transporter is likely assembled as a trimer where each monomer is a functional unit capable of binding the Glu substrate.

The transport of Glu into the cells by the EAAT transporters is coupled to the Na+ and K+ electrochemical gradient as a driving force. Hence, the uptake of Glu is dependent on the co-transport of three Na+ and one H+ ions, and the counter transport of one K+ ion. 

In addition, to the well documented Glu uptake, the EAAT transporters show a Glu-independent Cl- conductance. The physiological significance of the Cl- current through the EAATs is currently unknown1,2.

EAAT2 as well as EAAT1 are expressed predominantly in glia cells, while EAAT3 (Excitatory Amino Acid Transporter 3), EAAT4 and EAAT5 are mostly expressed in neurons.

As mentioned, EAAT transporters represent the only (significant) mechanism for removal of glutamate from the extracellular fluid and hence are essential for the long-term maintenance of low and non-toxic concentrations of glutamate and the preservation of normal excitatory synaptic transmission.

In addition to Glu uptake, the glutamate transporters provide glutamate for the synthesis of g-Aminobutyric acid (GABA), glutathione and protein, suggesting an interactive role between EAATs and cellular metabolism1,2.

Dysregulation of EAAT activities has been implicated in several neurodegenerative disorders such as Alzheimer’s disease, traumatic brain injury, epilepsy and schizophrenia, suggesting that EAATs can be a useful target for the treatment of these conditions1,2.

Application key:

CBE- Cell-based ELISA, FC- Flow cytometry, ICC- Immunocytochemistry, IE- Indirect ELISA, IF- Immunofluorescence, IFC- Indirect flow cytometry, IHC- Immunohistochemistry, IP- Immunoprecipitation, LCI- Live cell imaging, N- Neutralization, WB- Western blot

Species reactivity key:

H- Human, M- Mouse, R- Rat
Lyophilized Powder
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Last update: 08/01/2023

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For research purposes only, not for human use

Specifications

Citations

Citations

Applications

Scientific Background

Shipping and Ordering information
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    Control Product

    • EAAT3/EAAC1 Blocking Peptide (#BLP-GC023) is the original antigen used for immunization during Anti-EAAT3 (EAAC1) Antibody (#AGC-023) generation. The blocking peptide binds and ‘blocks’ Anti-EAAT3/EAAC1 primary antibody, this makes it a good negative reagent control to help confirm antibody specificity in western blot and immunohistochemistry applications. This control is also often called a pre-adsorption control.

      EAAT3/EAAC1 Blocking Peptide (#BLP-GC023)

    General Protocols

    • Blocking Peptides – Controls for better results
    • Blocking Peptide Protocol for Western Blot (WB)
    • Immunohistochemistry (IHC) Protocols for Frozen Sections: Indirect Methods
    • Sample Preparation Protocols for Tissues
    • Western Blot (WB) Protocol

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