Gene Gene information from NCBI Gene database.
Entrez ID 9568
Gene name Gamma-aminobutyric acid type B receptor subunit 2
Gene symbol GABBR2
Synonyms (NCBI Gene)
DEE59EIEE59GABABR2GPR51GPRC3BHG20HRIHFB2099NDPLHS
Chromosome 9
Chromosome location 9q22.33
Summary The multi-pass membrane protein encoded by this gene belongs to the G-protein coupled receptor 3 family and GABA-B receptor subfamily. The GABA-B receptors inhibit neuronal activity through G protein-coupled second-messenger systems, which regulate the re
SNPs SNP information provided by dbSNP.
8
SNP ID Visualize variation Clinical significance Consequence
rs2184026 C>G,T Risk-factor Genic upstream transcript variant, intron variant
rs2491397 C>T Risk-factor Intron variant
rs3750344 T>C,G Risk-factor Coding sequence variant, genic upstream transcript variant, synonymous variant
rs922847767 C>T Pathogenic Missense variant, coding sequence variant
rs1554689313 C>T Pathogenic Coding sequence variant, missense variant
miRNA miRNA information provided by mirtarbase database.
153
miRTarBase ID miRNA Experiments Reference
MIRT022745 hsa-miR-124-3p Microarray 18668037
MIRT613027 hsa-miR-129-5p HITS-CLIP 23824327
MIRT613026 hsa-miR-450b-5p HITS-CLIP 23824327
MIRT613025 hsa-miR-507 HITS-CLIP 23824327
MIRT613024 hsa-miR-557 HITS-CLIP 23824327
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
31
GO ID Ontology Definition Evidence Reference
GO:0004888 Function Transmembrane signaling receptor activity IBA
GO:0004930 Function G protein-coupled receptor activity IEA
GO:0004965 Function G protein-coupled GABA receptor activity IDA 9872316
GO:0004965 Function G protein-coupled GABA receptor activity IEA
GO:0004965 Function G protein-coupled GABA receptor activity TAS 10328880
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
607340 4507 ENSG00000136928
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
O75899
Protein name Gamma-aminobutyric acid type B receptor subunit 2 (GABA-B receptor 2) (GABA-B-R2) (GABA-BR2) (GABABR2) (Gb2) (G-protein coupled receptor 51) (HG20)
Protein function Component of a heterodimeric G-protein coupled receptor for GABA, formed by GABBR1 and GABBR2 (PubMed:15617512, PubMed:18165688, PubMed:22660477, PubMed:24305054, PubMed:9872316, PubMed:9872744). Within the heterodimeric GABA receptor, only GABB
PDB 4F11 , 4F12 , 4MQE , 4MQF , 4MR7 , 4MR8 , 4MR9 , 4MRM , 4MS1 , 4MS3 , 4MS4 , 4PAS , 6M8R , 6OCP , 6UO8 , 6UO9 , 6UOA , 6VJM , 6W2X , 6WIV , 7C7Q , 7C7S , 7CA3 , 7CA5 , 7CUM , 7EB2
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF01094 ANF_receptor 76 435 Receptor family ligand binding region Family
PF00003 7tm_3 493 746 7 transmembrane sweet-taste receptor of 3 GCPR Family
PF18455 GBR2_CC 779 817 Gamma-aminobutyric acid type B receptor subunit 2 coiled-coil domain Coiled-coil
Tissue specificity TISSUE SPECIFICITY: Highly expressed in brain, especially in cerebral cortex, thalamus, hippocampus, frontal, occipital and temporal lobe, occipital pole and cerebellum, followed by corpus callosum, caudate nucleus, spinal cord, amygdala and medulla (PubM
Sequence
MASPRSSGQPGPPPPPPPPPARLLLLLLLPLLLPLAPGAWGWARGAPRPPPSSPPLSIMG
LMPLTKEVAKGSIGRGVLPAVELAIEQIRNESLLRPYFLDLRLYDTECDNAKGLKAFYDA
IKYGPNHLMVFGGVCPSVTSIIAESLQGWNLVQLSFAATTPVLADKKKYPYFFRTVPSDN
AVNPAILKLLKHYQWKRVGTLTQDVQRFSEVRNDLTGVLYGEDIEISDTESFSNDPCTSV
KKLKGNDVRIILGQFDQNMAAKVFCCAYEENMYGSKYQWIIPGWYEPSWWEQVHTEANSS
RCLRKNLLAAMEGYIGVDFEPLSSKQIKTISGKTPQQYEREYNNKRSGVGPSKFHGYAYD
GIWVIAKTLQRAMETLHASSRHQRIQDFNYTDHTLGRIILNAMNETNFFGVTGQVVFRNG
ERMGTIKFTQFQDSR
EVKVGEYNAVADTLEIINDTIRFQGSEPPKDKTIILEQLRKISLP
LYSILSALTILGMIMASAFLFFNIKNRNQKLIKMSSPYMNNLIILGGMLSYASIFLFGLD
GSFVSEKTFETLCTVRTWILTVGYTTAFGAMFAKTWRVHAIFKNVKMKKKIIKDQKLLVI
VGGMLLIDLCILICWQAVDPLRRTVEKYSMEPDPAGRDISIRPLLEHCENTHMTIWLGIV
YAYKGLLMLFGCFLAWETRNVSIPALNDSKYIGMSVYNVGIMCIIGAAVSFLTRDQPNVQ
FCIVALVIIFCSTITLCLVFVPKLIT
LRTNPDAATQNRRFQFTQNQKKEDSKTSTSVTSV
NQASTSRLEGLQSENHRLRMKITELDKDLEEVTMQLQ
DTPEKTTYIKQNHYQELNDILNL
GNFTESTDGGKAILKNHLDQNPQLQWNTTEPSRTCKDPIEDINSPEHIQRRLSLQLPILH
HAYLPSIGGVDASCVSPCVSPTASPRHRHVPPSFRVMVSGL
Sequence length 941
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  cAMP signaling pathway
Neuroactive ligand-receptor interaction
GABAergic synapse
Taste transduction
Estrogen signaling pathway
GnRH secretion
Morphine addiction
  Activation of G protein gated Potassium channels
G alpha (i) signalling events
Class C/3 (Metabotropic glutamate/pheromone receptors)
GABA B receptor activation
Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
31
Evidence Score: ★☆☆☆☆  Gene-disease association found in Text Mining only ★★☆☆☆  Found in Text Mining and Unknown/Other Associations ★★★☆☆  Reported in Unknown/Other Associations across ≥2 Sources ★★★★☆  ClinVar: Pathogenic/Likely Pathogenic (<5 Variants) ★★★★★  ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession Evidence Score
Developmental and epileptic encephalopathy, 59 Likely pathogenic; Pathogenic rs1554689319, rs2491207996, rs1564157745, rs1554689320, rs1554689315, rs1554689313 RCV002254373
RCV003128222
RCV003153163
RCV000590835
RCV000590833
View all (2 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Epileptic encephalopathy Pathogenic; Likely pathogenic rs2131462561, rs1485329117, rs1554689320, rs1178244073 RCV001386468
RCV002300005
RCV003591755
RCV001061509
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Intellectual disability Likely pathogenic rs1830549152 RCV001260768
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Neurodevelopmental disorder with poor language and loss of hand skills Likely pathogenic; Pathogenic rs1554689319, rs1449813941, rs1554689313, rs1827283362 RCV002254373
RCV002289255
RCV000590832
RCV003389254
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Unknown / Other Associations ClinVar entries with uncertain/conflicting evidence, and associations from other databases (OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
Phenotype Name Clinical Significance Source Evidence Score
Acute myeloid leukemia Benign ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
ATYPICAL RETT SYNDROME GWAS catalog, Orphanet
GWAS catalog, Orphanet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Autism spectrum disorder Uncertain significance ClinVar
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
AUTISM SPECTRUM DISORDERS Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Associations from Text Mining Disease associations identified through text mining
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
Adenocarcinoma of lung (disorder) Lung adenocarcinoma BEFREE 28490462
★☆☆☆☆
Found in Text Mining only
Alzheimer Disease Alzheimer disease Pubtator 33218044, 36776048 Associate
★☆☆☆☆
Found in Text Mining only
Anxiety Anxiety disorder Pubtator 35301427 Associate
★☆☆☆☆
Found in Text Mining only
Arrhythmogenic Right Ventricular Dysplasia Arrhythmogenic right ventricular cardiomyopathy Pubtator 30664203 Associate
★☆☆☆☆
Found in Text Mining only
Atypical Rett syndrome Rett Syndrome Orphanet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Autism Spectrum Disorder Autism Pubtator 32807774, 34069769 Associate
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Autistic Disorder Autism BEFREE 19002745
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Autistic Disorder Autism CTD_human_DG 19002745
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Autistic Disorder Autism Pubtator 19002745 Associate
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Bipolar Disorder Bipolar disorder Pubtator 21303731, 24022508 Inhibit
★☆☆☆☆
Found in Text Mining only