Gene Information
Gene NameGPRC3A
OrganismHomo sapiens (Human)
Gene Length961
Protein NamesGamma-aminobutyric acid type B receptor subunit 1 (GABA-B receptor 1) (GABA-B-R1) (GABA-BR1) (GABABR1) (Gb1)
Target NameNA
Target TypeNA
Gene AgeNA
Evolutionary StageNA
AlphaFoldDBQ9UBS5
Gene CardGABBR1
Uniprot IDQ9UBS5
PfamPF00003; PF01094; PF00084
In ASDyes
Allosteric PredictionNA
Ortholog in AnimalsNA
OhnologsNA
ParalogsNA
TissueNA
Tissue SpecificityHighly expressed in brain (PubMed:9844003, PubMed:9753614, PubMed:9872744). Weakly expressed in heart, small intestine and uterus. Isoform 1A: Mainly expressed in granular cell and molecular layer (PubMed:9844003). Isoform 1B: Mainly expressed in Purkinje cells (PubMed:9844003). Isoform 1E: Predominantly expressed in peripheral tissues as kidney, lung, trachea, colon, small intestine, stomach, bone marrow, thymus and mammary gland (PubMed:10906333). {ECO:0000269|PubMed:10906333, ECO:0000269|PubMed:9753614, ECO:0000269|PubMed:9844003, ECO:0000269|PubMed:9872744}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 4MQE  (X-ray  2.35A  4MQF  (X-ray  2.22A  4MR7  (X-ray  2.15A  4MR8  (X-ray  2.15A  4MR9  (X-ray  2.35A  4MRM  (X-ray  2.86A  4MS1  (X-ray  2.25A  4MS3  (X-ray  2.50A  4MS4  (X-ray  1.90A  4PAS  (X-ray  1.62A  6HKC  (NMR  6UO8  (EM  3.63A  6UO9  (EM  4.80A  6UOA  (EM  6.30A  6VJM  (EM  3.97A  6W2X  (EM  3.60A  6W2Y  (EM  3.20A  6WIV  (EM  3.30A  7C7Q  (EM  3.00A  7C7S  (EM  2.90A  7CA3  (EM  4.50A  7CA5  (EM  7.60A  7CUM  (EM  3.52A  7EB2  (EM  3.50A 
DBSNP rs1805056  rs1805057  rs2076489 
Subcellular location [CC]Cell membrane {ECO:0000269|PubMed:15617512};
Multi-pass membrane protein {ECO:0000305}. Postsynaptic cell membrane {ECO:0000250|UniProtKB:Q9Z0U4};
Multi-pass membrane protein {ECO:0000305}. Cell projection, dendrite {ECO:0000250|UniProtKB:Q9Z0U4}. Note=Colocalizes with ATF4 in hippocampal neuron dendritic membranes (By similarity). Coexpression of GABBR1 and GABBR2 is required for GABBR1 maturation and transport to the plasma membrane (PubMed:15617512). {ECO:0000250|UniProtKB:Q9Z0U4, ECO:0000269|PubMed:15617512}.;
[Isoform 1E]: Secreted {ECO:0000305}.
Mouse PG classificationNA
click here to return to the previous page