| Field | Specification |
|---|---|
| Mfr No | |
| Accession Number | |
| Alternative Names | GABA-B receptor 1, GABA-B-R1, GABR1_HUMAN, Gamma aminobutyric acid receptor 1, GB1, GPRC3A, Gamma-aminobutyric acid type B receptor subunit 1, GABBR1 |
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| Concentration | |
| Host | |
| Immunogen | Fusion protein amino acids 873-977 (cytoplasmic C-terminus) of rat GABA(B)R1 |
| Isotype | |
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| Target |
GABA (γ-aminobutyric acid) is the brain’s primary inhibitory neurotransmitter, acting through three receptor types: GABA-A, GABA-B, and GABA-C. While GABA-A and GABA-C receptors are ionotropic and mediate fast synaptic inhibition, GABA-B receptors are metabotropic, G protein-coupled receptors that regulate slow, prolonged inhibitory signaling.
The functional GABA-B receptor is a heterodimer composed of GABA-B Receptor 1 (GABBR1), which binds the ligand, and GABA-B Receptor 2 (GABBR2), which couples to intracellular G proteins. GABBR1 exists in two isoforms—GABBR1a and GABBR1b—each contributing to distinct signaling dynamics. Upon activation, GABA-B receptors inhibit adenylate cyclase, reduce calcium influx at presynaptic terminals, and activate inwardly rectifying potassium channels postsynaptically, thereby modulating neurotransmitter release and neuronal excitability.
GABBR1 plays a critical role in maintaining synaptic balance and has been implicated in key neurological processes such as hippocampal long-term potentiation, slow-wave sleep, and motor control. Importantly, dysregulation of GABA-B signaling—particularly involving GABBR1—has been linked to neurodegenerative diseases including Alzheimer’s disease, Parkinson’s disease, and Huntington’s disease. Altered GABBR1 expression or function may contribute to excitotoxicity, impaired synaptic plasticity, and cognitive decline.
As a result, GABBR1 is emerging as a promising therapeutic target and biomarker in neurodegeneration research, offering new avenues for modulating inhibitory tone and preserving neural function in aging and disease.
1 µg/ml of SMC-403 was sufficient for detection of GABA(B)R1 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-403D — Size: 100 ug: GABAB Receptor 1 Antibody (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-403D, RRID: AB_11229705)
- SMC-403D-A390 — Size: 100 ug: GABAB Receptor 1 Antibody: ATTO 390 (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-403D-A390, RRID: AB_2701009)
- SMC-403D-A488 — Size: 100 ug: GABAB Receptor 1 Antibody: ATTO 488 (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-403D-A488, RRID: AB_2701010)
- SMC-403D-A594 — Size: 100 ug: GABAB Receptor 1 Antibody: ATTO 594 (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-403D-A594, RRID: AB_2701012)
- SMC-403D-APC — Size: 100 ug: GABAB Receptor 1 Antibody: APC (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-403D-APC, RRID: AB_2701018)
- SMC-403D-BI — Size: 100 ug: GABAB Receptor 1 Antibody: Biotin (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-403D-BI, RRID: AB_2701019)
- SMC-403D-FITC — Size: 100 ug: GABAB Receptor 1 Antibody: FITC (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-403D-FITC, RRID: AB_2701020)
- SMC-403D-HRP — Size: 100 ug: GABAB Receptor 1 Antibody: HRP (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-403D-HRP, RRID: AB_2701021)
- SMC-403D-PCP — Size: 100 ug: GABAB Receptor 1 Antibody: PerCP (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-403D-PCP, RRID: AB_2701023)
- SMC-403D-RPE — Size: 100 ug: GABAB Receptor 1 Antibody: RPE (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-403D-RPE, RRID: AB_2701024)
- SMC-403S — Size: 12 ug: GABAB Receptor 1 Antibody (StressMarq Biosciences | Victoria, BC CANADA, Catalog# SMC-403S, RRID: AB_11229705)
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.