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Rabbit Polyclonal to GABA(B) R1b

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  11-550-C100 purified 0.1 mg yes choose region PDF datasheetHTML datasheet buy
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GABA B receptor is a G-protein-coupled inhibitory receptor of gamma-aminobutyric acid (GABA), and has important functions in brain by inhibition of adenylyl cyclase and modulation of G-protein-gated Ca2+ and K+ channels. GABA B receptor is comprised of two subunits, GB1 and GB2 with N-terminal extracellular and C-terminal intracellular domains. The GB1 subunit plays a critical role in ligand binding, whereas the GB2 subunit contains the determinants required for G-protein signaling. Multiple allosteric interactions between the two subunits are required for correct functioning of the receptor. There are two N-terminal splice variants of GB1 subunit, termed GB1a and GB1b; their expression in the central nervous system changes during the ontogenesis and differs between various regions of the brain.


The polyclonal antibody recognizes N-terminus of mouse gamma-aminobutyric acid (GABA) B receptor 1b. GB1b apparent MW ~100 kDa.

Regulatory Status


Synthetic peptide (coupled with THG) derived from amino acid sequence 30-47 of mouse GABA B receptor 1b. Only 1 amino acid is different from immunogen derived from human GB1b.

Species Reactivity:

  • Mouse
  • Rat
  • Other species Not tested

Negative Species:


  • Western Blotting
    Recommended dilution: 2 μg/ml
  • Immunocytochemistry
Usage note:
Indicated dilutions are recommended starting points for use of this product. Working concentrations should be determined by the investigator.

General references

  • *Fritschy JM, Meskenaite V, Weinmann O, Honer M, Benke D, Mohler H: GABAB-receptor splice variants GB1a and GB1b in rat brain: developmental regulation, cellular distribution and extrasynaptic localization. Eur J Neurosci. 1999 Mar;11(3):761-8. [Abstract]
  • *Galvez T, Duthey B, Kniazeff J, Blahos J, Rovelli G, Bettler B, Prézeau L, Pin JP: Allosteric interactions between GB1 and GB2 subunits are required for optimal GABA(B) receptor function. EMBO J. 2001 May 1;20(9):2152-9. [Abstract] [Full Text]
  • *Ng GY, Bertrand S, Sullivan R, Ethier N, Wang J, Yergey J, Belley M, Trimble L, Bateman K, Alder L, Smith A, McKernan R, Metters K, O'Neill GP, Lacaille JC, Hébert TE: Gamma-aminobutyric acid type B receptors with specific heterodimer composition and postsynaptic actions in hippocampal neurons are targets of anticonvulsant gabapentin action. Mol Pharmacol. 2001 Jan;59(1):144-52. [Abstract] [Full Text]
  • *Margeta-Mitrovic M, Jan YN, Jan LY: Ligand-induced signal transduction within heterodimeric GABA(B) receptor. Proc Natl Acad Sci U S A. 2001 Dec 4;98(25):14643-8. [Abstract] [Full Text]
  • *Margeta-Mitrovic M, Jan YN, Jan LY: Function of GB1 and GB2 subunits in G protein coupling of GABA(B) receptors. Proc Natl Acad Sci U S A. 2001 Dec 4;98(25):14649-54. [Abstract] [Full Text]
  • *Kniazeff J, Galvez T, Labesse G, Pin JP: No ligand binding in the GB2 subunit of the GABA(B) receptor is required for activation and allosteric interaction between the subunits. J Neurosci. 2002 Sep 1;22(17):7352-61. [Abstract] [Full Text]
  • For research use only. Not for drug, diagnostic or other use.

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