Anti-GABA B Receptor 2 (phospho S893) antibody [EP2318Y] (ab68426)


  • Product nameAnti-GABA B Receptor 2 (phospho S893) antibody [EP2318Y]
    See all GABA B Receptor 2 primary antibodies
  • Description
    Rabbit monoclonal [EP2318Y] to GABA B Receptor 2 (phospho S893)
  • SpecificityDetects GABA B Receptor 2 only when phosphorylated on serine 893.
  • Tested applicationsSuitable for: ICC/IF, WB, IHC-Pmore details
    Unsuitable for: Flow Cyt or IP
  • Species reactivity
    Reacts with: Mouse, Rat, Human
  • Immunogen

    Synthetic phosphopeptide corresponding to residues surrounding serine 893 of human GABA B Receptor 2.

  • Positive control
    • Brain
  • General notes

    Produced using Abcam’s RabMAb® technology. RabMAb® technology is covered by the following U.S. Patents, No. 5,675,063 and/or 7,429,487.



Our Abpromise guarantee covers the use of ab68426 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
ICC/IF 1/100 - 1/250.
WB 1/500 - 1/1000. Detects a band of approximately 105 kDa.
IHC-P 1/100 - 1/250. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.

The use of an HRP/AP polymerized secondary antibody is recommended.

  • Application notesIs unsuitable for Flow Cyt or IP.
  • Target

    • FunctionReceptor for GABA. The activity of this receptor is mediated by G-proteins that inhibit adenylyl cyclase activity, stimulates phospholipase A2, activates potassium channels, inactivates voltage-dependent calcium-channels and modulates inositol phospholipids hydrolysis. Plays a critical role in the fine-tuning of inhibitory synaptic transmission. Pre-synaptic GABA-B-R inhibit neurotransmitter release by down-regulating high-voltage activated calcium channels, whereas postsynaptic GABA-B-R decrease neuronal excitability by activating a prominent inwardly rectifying potassium (Kir) conductance that underlies the late inhibitory postsynaptic potentials. Not only implicated in synaptic inhibition but also in hippocampal long-term potentiation, slow wave sleep, muscle relaxation and antinociception.
    • Tissue specificityHighly expressed in brain, especially in cerebral cortex, thalamus, hippocampus, frontal, occipital and temporal lobe, occipital pole and cerebellum, followed by corpus callosum, caudate nucleus, spinal cord, amygdala and medulla. Weakly expressed in heart, testis and skeletal muscle.
    • Sequence similaritiesBelongs to the G-protein coupled receptor 3 family. GABA-B receptor subfamily.
    • DomainAlpha-helical parts of the C-terminal intracellular region mediate heterodimeric interaction with GABA-B receptor 1.
    • Cellular localizationCell membrane. Cell junction > synapse > postsynaptic cell membrane. Moreover coexpression of GABA-B-R1 and GABA-B-R2 appears to be a prerequisite for maturation and transport of GABA-B-R1 to the plasma membrane.
    • Information by UniProt
    • Database links
    • Alternative names
      • BcDNA:GH07312 antibody
      • CG6706 antibody
      • CT20836 antibody
      • D Gaba2 antibody
      • FLJ36928 antibody
      • G protein coupled receptor 51 antibody
      • G-protein coupled receptor 51 antibody
      • GAB B R2 antibody
      • GABA B R2 antibody
      • GABA B receptor 2 antibody
      • GABA-B receptor 2 antibody
      • GABA-B-R2 antibody
      • GABA-BR2 antibody
      • GABAB R2 antibody
      • GABABR 2 antibody
      • GABABR2 antibody
      • GABB R2 antibody
      • GABBR 2 antibody
      • Gabbr2 antibody
      • GABR2_HUMAN antibody
      • Gamma aminobutyric acid B receptor 2 antibody
      • Gamma aminobutyric acid GABA B receptor 2 antibody
      • Gamma aminobutyric acid type B receptor subunit 2 antibody
      • Gamma-aminobutyric acid type B receptor subunit 2 antibody
      • Gb 2 antibody
      • Gb2 antibody
      • GH07312 antibody
      • GPR 51 antibody
      • GPR51 antibody
      • GPRC 3B antibody
      • GPRC3B antibody
      • HG 20 antibody
      • HG20 antibody
      • HRIHFB2099 antibody
      • Metabotropic GABA B receptor subtype 2 antibody
      • OTTHUMP00000021776 antibody
      • OTTHUMP00000063797 antibody
      • R2 SUBUNIT antibody
      see all

    Anti-GABA B Receptor 2 (phospho S893) antibody [EP2318Y] images

    • All lanes : Anti-GABA B Receptor 2 (phospho S893) antibody [EP2318Y] (ab68426) at 1/1000 dilution

      Lane 1 : Human brain lysate - untreated
      Lane 2 : Human brain lysate - treated with AP

      Lysates/proteins at 10 µg per lane.

      HRP labelled Goat anti-Rabbit antibody at 1/2000 dilution

      Observed band size : 106 kDa (why is the actual band size different from the predicted?)
    • Immunohistochemical analysis of phosphorylated GABA B Receptor 2 expression on paraffin-embedded Human brain tissue using 1/100 ab68426. Heat mediated antigen retrieval was performed, and an HRP-conjugated polymerized secondary antibody was used.

    References for Anti-GABA B Receptor 2 (phospho S893) antibody [EP2318Y] (ab68426)

    ab68426 has not yet been referenced specifically in any publications.

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