GABA<sub>A</sub> receptor γ1 subunit | GABA<sub>A</sub> receptors | IUPHAR/BPS Guide to PHARMACOLOGY

GABAA receptor γ1 subunit

Target id: 413

Nomenclature: GABAA receptor γ1 subunit

Family: GABAA receptors

Annotation status:  image of a green circle Annotated and expert reviewed. Please contact us if you can help with updates.  » Email us

   GtoImmuPdb view: OFF :     Currently no data for GABAA receptor γ1 subunit in GtoImmuPdb

Gene and Protein Information
Species TM AA Chromosomal Location Gene Symbol Gene Name Reference
Human 4 465 4p12 GABRG1 gamma-aminobutyric acid type A receptor gamma1 subunit 9
Mouse 4 465 5 C3.1 Gabrg1 gamma-aminobutyric acid (GABA) A receptor, subunit gamma 1 8
Rat 4 465 14p11 Gabrg1 gamma-aminobutyric acid type A receptor gamma 1 subunit 11
Previous and Unofficial Names
GABA(A) receptor subunit gamma-1 | gamma-aminobutyric acid (GABA) A receptor, gamma 1 | gamma-aminobutyric acid (GABA) A receptor, subunit gamma 1 | gamma-aminobutyric acid (GABA) A receptor
Database Links
CATH/Gene3D
ChEMBL Target
DrugBank Target
Ensembl Gene
Entrez Gene
Human Protein Atlas
KEGG Gene
OMIM
RefSeq Nucleotide
RefSeq Protein
UniProtKB
Wikipedia
Natural/Endogenous Ligands
GABA

Download all structure-activity data for this target as a CSV file

Channel Blockers
Key to terms and symbols View all chemical structures Click column headers to sort
Ligand Sp. Action Use-dependent Affinity Units Concentration range (M) Voltage-dependent (mV) Reference
picrotoxin Hs - no - - - no

Not voltage dependent
TBPS Hs - no - - - no

Not voltage dependent
Tissue Distribution
For the γ1 subunit only faint and diffuse immunoreactivity is detected in all parts of the hippocampus. The faint γ1 immunostaining appears to be associated with astrocyte-like cells and fibres.
Species:  Rat
Technique:  Immunohistochemistry
References:  7
Immunoreactivity for γ1 is much stronger in the globus pallidus, entopeduncular nucleus and ventral pallidum than in the striatum, nucleus accumbens and olfactory tubercle. Strikingly, γ1-immunoreactivity, although absent in most areas outside the basal ganglia, is present in the pallidal nuclei and the subtantia nigra pars reticulata
Species:  Rat
Technique:  Immunohistochemistry
References:  6
γ1 subunit immunoreactivity is preferentially located in the pallidum, substantia nigra, septum, medial and central amygdaloid nuclei and in the bed nucleus of the stria terminalis. It is also present in the cerebellar Purkinje cell and granula cell layer, and in the cerebellar nuclei, in the zonal and superficial layer of the superior colliculus, and some nuclei of the medulla as well as in the Trigeminal sensory complex. In most of the other brain regions it not, or very weakly, expressed.
Species:  Rat
Technique:  Immunohistochemistry
References:  5
In situ hybridization signals for the γ1 subunit are strongest in the central and medial amygdala, bed nucleus of stria terminalis, and lateral septum, medial preoptic area, and Bergmann glia of the cerebellum. Weak signals are obtained in the hippocampus, neocortex, caudate-putamen and nucleus accumbens, thalamus, and several other parts of the brain
Species:  Rat
Technique:  In situ hybridisation
References:  3-4,10
Thalamic nuclei and basal ganglia. The parafascicular nucleus is the only thalamic nucleus expressing this subunit mRNA. In this nucleus, it is expressed at a high level medially and at a moderate level laterally. In the same autoradiographs the γ1 subunit is expressed in hypothalamic nuclei at a moderate to high level. In the basal ganglia no signal is detected except a weak signal within the lateral globus pallidus. An additional staining is observed in the juxtacapsular subdivision of the bed nucleus of the stria terminalis.
Species:  Rhesus macaque
Technique:  In situ hybridisation
References:  1-2

References

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1. Huntsman MM, Leggio MG, Jones EG. (1996) Nucleus-specific expression of GABA(A) receptor subunit mRNAs in monkey thalamus. J. Neurosci., 16 (11): 3571-89. [PMID:8642403]

2. Kultas-Ilinsky K, Leontiev V, Whiting PJ. (1998) Expression of 10 GABA(A) receptor subunit messenger RNAs in the motor-related thalamic nuclei and basal ganglia of Macaca mulatta studied with in situ hybridization histochemistry. Neuroscience, 85 (1): 179-204. [PMID:9607711]

3. Laurie DJ, Seeburg PH, Wisden W. (1992) The distribution of 13 GABAA receptor subunit mRNAs in the rat brain. II. Olfactory bulb and cerebellum. J. Neurosci., 12 (3): 1063-76. [PMID:1312132]

4. Persohn E, Malherbe P, Richards JG. (1992) Comparative molecular neuroanatomy of cloned GABAA receptor subunits in the rat CNS. J. Comp. Neurol., 326 (2): 193-216. [PMID:1336019]

5. Pirker S, Schwarzer C, Wieselthaler A, Sieghart W, Sperk G. (2000) GABA(A) receptors: immunocytochemical distribution of 13 subunits in the adult rat brain. Neuroscience, 101 (4): 815-50. [PMID:11113332]

6. Schwarzer C, Berresheim U, Pirker S, Wieselthaler A, Fuchs K, Sieghart W, Sperk G. (2001) Distribution of the major gamma-aminobutyric acid(A) receptor subunits in the basal ganglia and associated limbic brain areas of the adult rat. J. Comp. Neurol., 433 (4): 526-49. [PMID:11304716]

7. Sperk G, Schwarzer C, Tsunashima K, Fuchs K, Sieghart W. (1997) GABA(A) receptor subunits in the rat hippocampus I: immunocytochemical distribution of 13 subunits. Neuroscience, 80 (4): 987-1000. [PMID:9284055]

8. Wang JB, Liu ZF, Kofuji P, Burt DR. (1998) The GABA(A) receptor gamma1-subunit in seizure prone (DBA/2) and resistant (C57BL/6) mice. Brain Res. Bull., 45 (4): 421-5. [PMID:9527017]

9. Wilcox AS, Warrington JA, Gardiner K, Berger R, Whiting P, Altherr MR, Wasmuth JJ, Patterson D, Sikela JM. (1992) Human chromosomal localization of genes encoding the gamma 1 and gamma 2 subunits of the gamma-aminobutyric acid receptor indicates that members of this gene family are often clustered in the genome. Proc. Natl. Acad. Sci. U.S.A., 89 (13): 5857-61. [PMID:1321425]

10. Wisden W, Laurie DJ, Monyer H, Seeburg PH. (1992) The distribution of 13 GABAA receptor subunit mRNAs in the rat brain. I. Telencephalon, diencephalon, mesencephalon. J. Neurosci., 12 (3): 1040-62. [PMID:1312131]

11. Ymer S, Draguhn A, Wisden W, Werner P, Keinänen K, Schofield PR, Sprengel R, Pritchett DB, Seeburg PH. (1990) Structural and functional characterization of the gamma 1 subunit of GABAA/benzodiazepine receptors. EMBO J., 9 (10): 3261-7. [PMID:2170110]

Contributors

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How to cite this page

Werner Sieghart, John A. Peters.
GABAA receptors: GABAA receptor γ1 subunit. Last modified on 10/11/2014. Accessed on 17/11/2018. IUPHAR/BPS Guide to PHARMACOLOGY, http://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=413.