Phospho-Ser408/409 GABAA Receptor, β3 subunit Antibody
Affinity purified rabbit polyclonal antibody
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Application ![]()
| WB |
---|---|
Primary Accession | P63079 |
Reactivity | Rat |
Predicted | Bovine, Chicken, Human, Mouse, Monkey, Xenopus, Zebrafish |
Host | Rabbit |
Clonality | polyclonal |
Calculated MW | 53 KDa |
Gene ID | 24922 |
---|---|
Gene Name | GABRB3 |
Other Names | Gamma-aminobutyric acid receptor subunit beta-3, GABA(A) receptor subunit beta-3, Gabrb3, Gabrb-3 |
Target/Specificity | Synthetic phospho-peptide corresponding to amino acid residues surrounding Ser408/409 conjugated to KLH. |
Dilution | WB~~ 1:1000 |
Format | Prepared from rabbit serum by affinity purification via sequential chromatography on phospho- and dephospho-peptide affinity columns. |
Antibody Specificity | Specific for the ~53k GABAA receptor β3 subunit phosphorylated at Ser408/409. Immunolabeling of the GABAA band is completely blocked by the phospho-peptide used as antigen but not by the corresponding dephospho-peptide. |
Storage | Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles. |
Precautions | Phospho-Ser408/409 GABAA Receptor, β3 subunit Antibody is for research use only and not for use in diagnostic or therapeutic procedures. |
Shipping | Blue Ice |

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Provided below are standard protocols that you may find useful for product applications.
Background
Gamma-aminobutyric acid (GABA) is the primary inhibitory neurotransmitter in the central nervous system. There are two major classes of GABA receptors: the GABAA and the GABAB subtype of receptors. GABAA-Rs are important therapeutic targets for a range of sedative, anxiolytic, and hypnotic agents and are implicated in several diseases including epilepsy, anxiety, depression, and sub-stance abuse. The GABAA-R is a multimeric subunit complex. To date six αs, four βs and four γs, plus alternative splicing variants of some of these subunits, have been identified (Olsen and Tobin, 1990; Whiting et al., 1999; Ogris et al., 2004). Injection in oocytes or mammalian cell lines of cRNA coding for α- and β-subunits results in the expression of functional GABAA-Rs sensitive to GABA. However, coexpression of a γ-subunit is required for benzodiazepine modulation. Phosphorylation of serine 408 and serine 409 within the β3 subunit have been shown to be critical for the functional modulation of β3 containing recombinant receptors (Brandon et al., 2000).
References
Olsen RW, Tobin AJ (1990) Molecular biology of GABAA receptors. FASEB 4:1469-1480.
Whiting PJ, Bonnert TP, McKernan RM, Farrar S, Le Bourdellès B, Heavens RP, Smith DW, Hewson L, Rigby MR, Sirinathsinghji DJS, Thompson SA, Wafford KA (1999) Molecular and functional diversity of the expanding GABAA receptor gene family. Ann NY Acad Sci 868:645-653
Ogris W, Pöltl A, Hauer B, Ernst M, Oberto A, Wulff P, Höger H, Wisden W, Sieghart W (2004)
Affinity of various benzodiazepine site ligands in mice with a point mutation in the GABAA
receptor γ2-subunit. Biochem Pharmacol 68:1621-1629.
Brandon NJ, Delmas P, Kittler JT, McDonald BJ, Sieghart W, Brown DA, Smart TG, Moss SJ (2000) GABAA receptor phosphorylation and functional modulation in cortical neurons by a protein kinase C-dependent pathway. J Biol Chem 275, 38856-62

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