Product nameAnti-GABA B Receptor 2/GABBR2 antibody [EP2411Y]
See all GABA B Receptor 2/GABBR2 primary antibodies
DescriptionRabbit monoclonal [EP2411Y] to GABA B Receptor 2/GABBR2
Tested applicationsSuitable for: IHC-P, WB, Flow Cytmore details
Unsuitable for: ICC/IF or IP
Species reactivityReacts with: Mouse, Rat, Human
Synthetic peptide within Human GABA B Receptor 2/GABBR2 (C terminal). The exact sequence is proprietary.
- Human cerebellum lysate; human brain tissue.
This product was previously labelled as GABA B Receptor 2
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.
Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.
Storage bufferpH: 7.20
Preservative: 0.01% Sodium azide
Constituents: 59% PBS, 40% Glycerol, 0.5% BSA
Concentration information loading...
PurityProtein A purified
Our Abpromise guarantee covers the use of ab75838 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|IHC-P||1/100 - 1/250. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.|
|WB||1/500. Predicted molecular weight: 106 kDa.|
ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.
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
- BcDNA:GH07312 antibody
- CG6706 antibody
- CT20836 antibody
All lanes : Anti-GABA B Receptor 2/GABBR2 antibody [EP2411Y] (ab75838) at 1/1000 dilution
Lane 1 : Human hippocampus lysates unboiled with 5% NFDM/TBST
Lane 2 : Human hippocampus lysates boiled with 5% NFDM/TBST
Lane 3 : Mouse brain lysates unboiled with 5% NFDM/TBST
Lane 4 : Mouse brain lysates boiled with 5% NFDM/TBST
Lane 5 : Rat brain lysates unboiled with 5% NFDM/TBST
Lane 6 : Rat brain lysates boiled unboiled with 5% NFDM/TBST
Lysates/proteins at 20 µg per lane.
All lanes : Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/20000 dilution
Predicted band size: 106 kDa
Observed band size: 106 kDa
Lane 1 and 2: 140 seconds
Lane 3 to 6: 180 seconds
We recommend not to boil the samples after lysis to get desired WB results.
ab75838, at a 1/100 dilution, staining GABA B Receptor 2/GABBR2 in paraffin embedded human brain tissue by Immunohistochemistry.
Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
Anti-GABA B Receptor 2/GABBR2 antibody [EP2411Y] (ab75838) at 1/500 dilution + human cerebellum lysate at 10 µg
goat anti-rabbit HRP at 1/2000 dilution
Predicted band size: 106 kDa
Observed band size: 106 kDa
Ab75838 staining GABA B Receptor 2/GABBR2 in Rat Postnatal (P15) Cerebellum by Immunohistochemistry (IHC-P - paraformaldehyde-fixed, paraffin-embedded sections). Tissue was fixed with paraformaldehyde and blocked with 10% serum for 1 hour at 25°C; antigen retrieval was by heat mediation in a 10mM citrate buffer, pH6. Samples were incubated with primary antibody (1/400 in PBS with 2% donkey serum) for 16 hours at 25°C. An Alexa Fluor® 488 conjugated Donkey anti-rabbit, polyclonal was used as the secondary antibody.
IHC and confocal microscopy for GABA B Receptor 2/GABBR2 (GABAB2) in the postnatal rat cerebellum. (A, C, E, G) Negative control by omission of the primary antibody at 10, 20, 40 and 60X. (B-B’’, D-D’’, F-F’’, H-H’’) Immunolabeling for GABAB2 (green) and/or the calcium-binding protein calbindin (red) at 10, 20, 40 and 60X. (I-K) Zooms of the insets shown in F-F’’. Specific signal for GABAB2 is mainly observed in the molecular layer (ML) and internal granular layer (IGL) of the cerebellar grey matter. Purkinje cells (PkL) are enriched in GABAB2 especially at the surface of the dendritic trees (white arrowheads) oriented towards the ML. Golgi II cells (yellow arrowhead) located in the IGL are also positive for GABAB2. EGL: external granular layer. n: calbindin-positive nucleus of a Purkinje cell. Orange arrowhead: GABAB2-immunoreactive granular cell in the IGL. WM: white matter. An Olympus FV 1000 confocal microscope was used and images were processed with Adobe Photoshop CS4. Figure generated by Juan Vilchez Aruani and Estela Muñoz, IHEM, UNCuyo, CONICET, Mendoza, Argentina.
Overlay histogram showing SH-SY5Y cells stained with ab75838 (red line). The cells were fixed with 4% paraformaldehyde (10 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab75838, 1/50 dilution) for 30 min at 22ºC. The secondary antibody used was DyLight® 488 goat anti-rabbit IgG (H+L) (ab96899) at 1/500 dilution for 30 min at 22ºC. Isotype control antibody (black line) was rabbit IgG (monoclonal) (1µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed. This antibody gave a positive signal in SH-SY5Y cells fixed with 80% methanol (5 min)/permeabilized with 0.1% PBS-Tween for 20 min used under the same conditions.
This product has been referenced in:
- Wang D et al. Response of the maternal hypothalamus to cold stress during late pregnancy in rats. Brain Res 1722:146354 (2019). Read more (PubMed: 31356783) »
- Sheilabi MA et al. Quantitative expression and localization of GABAB receptor protein subunits in hippocampi from patients with refractory temporal lobe epilepsy. Neuropharmacology 136:117-128 (2018). Read more (PubMed: 28782512) »