| Field | Specification |
|---|---|
| Mfr No | |
| Accession Number | |
| Alternative Names | GABA B receptor 2, GABA-B receptor 2, GABA-B-R2, GABA-BR2, GABAB R2, GABABR2, GABBR 2, GABBR2, GABR2_HUMAN, Gamma aminobutyric acid (GABA) B receptor 2, Gamma aminobutyric acid B receptor 2, Gamma aminobutyric acid GABA B receptor 2, Gamma aminobutyric acid type B receptor subunit 2, Gb 2, Gb2, GPR 51, GPR51, G protein coupled receptor 51, G-protein coupled receptor 51, GPRC 3B, GPRC3B, HG 20, HG20, HRIHFB2099, Metabotropic GABA B receptor subtype 2, BcDNA:GH07312, CG6706, CT20836, D GABA[[B]]R2, D Gaba2, FLJ36928, GH07312, OTTHUMP00000021776, OTTHUMP00000063797, R2 SUBUNIT |
| Cellular Localization | |
| Clonality | |
| Concentration | |
| Host | |
| Immunogen | Fusion protein amino acids 861-912 of rat GABA(B)R2 |
| Isotype | |
| Product Type | |
| Reactivity | |
| Shipping | |
| Storage | |
| Target |
GABA (γ-aminobutyric acid) is the primary inhibitory neurotransmitter in the central nervous system, acting through three receptor types: GABA-A, GABA-B, and GABA-C. While GABA-A and GABA-C receptors are ionotropic and mediate rapid synaptic inhibition, GABA-B receptors are metabotropic, G protein-coupled receptors that regulate slower, prolonged inhibitory signaling.
Functional GABA-B receptors are obligate heterodimers composed of GABA-B Receptor 1 (GABBR1), which binds GABA, and GABA-B Receptor 2 (GABBR2), which is essential for G protein coupling and intracellular signaling. GABBR2 plays a pivotal role in activating downstream pathways that inhibit adenylate cyclase, suppress voltage-gated calcium channels, and activate inwardly rectifying potassium channels. These mechanisms contribute to both presynaptic inhibition—by reducing neurotransmitter release—and postsynaptic inhibition—by hyperpolarizing neurons.
Beyond its role in synaptic inhibition, GABBR2 is involved in regulating hippocampal long-term potentiation, sleep architecture, and motor control. Dysregulation of GABBR2 has been increasingly implicated in neurodegenerative diseases such as Alzheimer’s, Parkinson’s, and Huntington’s disease. Altered GABBR2 expression or function may disrupt inhibitory tone, contribute to excitotoxicity, and impair synaptic plasticity—key features of neurodegeneration.
As a result, GABBR2 is emerging as a promising therapeutic target and biomarker in neuroscience, offering new opportunities for modulating GABAergic signaling to preserve cognitive and neural function in aging and disease.
1 µg/ml of SMC-402 was sufficient for detection of GABA(B)R2 in 20 µg of rat brain membrane lysate and assayed by colorimetric immunoblot analysis using goat anti-mouse IgG:HRP as the secondary antibody.
Cite this product varies by variant:
- SMC-402D — Size: 100 ug: GABAB Receptor 2 Antibody (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-402D, RRID: AB_11232611)
- SMC-402D-A390 — Size: 100 ug: GABAB Receptor 2 Antibody: ATTO 390 (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-402D-A390, RRID: AB_2700992)
- SMC-402D-A488 — Size: 100 ug: GABAB Receptor 2 Antibody: ATTO 488 (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-402D-A488, RRID: AB_2700993)
- SMC-402D-A594 — Size: 100 ug: GABAB Receptor 2 Antibody: ATTO 594 (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-402D-A594, RRID: AB_2700995)
- SMC-402D-APC — Size: 100 ug: GABAB Receptor 2 Antibody: APC (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-402D-APC, RRID: AB_2701001)
- SMC-402D-BI — Size: 100 ug: GABAB Receptor 2 Antibody: Biotin (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-402D-BI, RRID: AB_2701002)
- SMC-402D-FITC — Size: 100 ug: GABAB Receptor 2 Antibody: FITC (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-402D-FITC, RRID: AB_2701003)
- SMC-402D-HRP — Size: 100 ug: GABAB Receptor 2 Antibody: HRP (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-402D-HRP, RRID: AB_2701004)
- SMC-402D-PCP — Size: 100 ug: GABAB Receptor 2 Antibody: PerCP (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-402D-PCP, RRID: AB_2701006)
- SMC-402D-RPE — Size: 100 ug: GABAB Receptor 2 Antibody: RPE (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-402D-RPE, RRID: AB_2701007)
- SMC-402S — Size: 12 ug: GABAB Receptor 2 Antibody (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-402S, RRID: AB_11232611)
Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.
2. Duthey B., et al. (2002) J Biol Chem. 277: 3236-41.
3. Kaupmann K., et al. (1997) Nature 386: 239-46.