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Gene and Protein Information ![]() |
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class A G protein-coupled receptor | ||||||
Species | TM | AA | Chromosomal Location | Gene Symbol | Gene Name | Reference |
Human | 7 | 353 | 16p12.3 | GPR139 | G protein-coupled receptor 139 | 1,5,9 |
Mouse | 7 | 345 | 7 F2 | Gpr139 | G protein-coupled receptor 139 | 5,9 |
Rat | 7 | 345 | 1q35 | Gpr139 | G protein-coupled receptor 139 | 1,5 |
Previous and Unofficial Names ![]() |
G(q)-coupled orphan receptor GPRg1 | GPRG1 | G-protein-coupled receptor PGR3 |
Database Links ![]() |
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Specialist databases | |
GPCRdb | gp139_human (Hs), gp139_mouse (Mm), gp139_rat (Rn) |
Other databases | |
Alphafold | Q6DWJ6 (Hs), Q80UC8 (Mm), P0C0W8 (Rn) |
ChEMBL Target | CHEMBL3632455 (Hs), CHEMBL4888453 (Rn) |
Ensembl Gene | ENSG00000180269 (Hs), ENSMUSG00000066197 (Mm), ENSRNOG00000023863 (Rn) |
Entrez Gene | 124274 (Hs), 209776 (Mm), 293545 (Rn) |
Human Protein Atlas | ENSG00000180269 (Hs) |
KEGG Gene | hsa:124274 (Hs), mmu:209776 (Mm), rno:293545 (Rn) |
Pharos | Q6DWJ6 (Hs) |
RefSeq Nucleotide | NM_001002911 (Hs), NM_001024138 (Mm), NM_00102424 (Rn) |
RefSeq Protein | NP_001002911 (Hs), NP_001019309 (Mm), NP_001019412 (Rn) |
UniProtKB | Q6DWJ6 (Hs), Q80UC8 (Mm), P0C0W8 (Rn) |
Wikipedia | GPR139 (Hs) |
Natural/Endogenous Ligands ![]() |
L-phenylalanine |
L-tryptophan |
Download all structure-activity data for this target as a CSV file
Agonists | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Key to terms and symbols | View all chemical structures | Click column headers to sort | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Antagonists | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Key to terms and symbols | View all chemical structures | Click column headers to sort | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Primary Transduction Mechanisms ![]() |
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Transducer | Effector/Response |
Gq/G11 family | Other - See Comments |
Comments: GPR139 is coupled with Gq/11 protein which leads to activation of serum response element (SRE) and cAMP response element (CRE) [5]. However, Susens et al. show that GPR139 signaling does not require Gi and Gq coupling [9]. Instead, it is mediated by an inhibitory G-protein and phospholipase C. Dimer formation may be required for proper signaling function. | |
References: 5 |
Tissue Distribution ![]() |
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Expression Datasets ![]() |
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Physiological Functions Comments | |
A forward genetic screen in a behavioural model using C. elegans suggests that GPR139 negatively regulates μ opioid receptor signalling [10]. |
1. Gloriam DE, Schiöth HB, Fredriksson R. (2005) Nine new human Rhodopsin family G-protein coupled receptors: identification, sequence characterisation and evolutionary relationship. Biochim Biophys Acta, 1722 (3): 235-46. [PMID:15777626]
2. Hu LA, Tang PM, Eslahi NK, Zhou T, Barbosa J, Liu Q. (2009) Identification of surrogate agonists and antagonists for orphan G-protein-coupled receptor GPR139. J Biomol Screen, 14 (7): 789-97. [PMID:19525486]
3. Isberg V, Andersen KB, Bisig C, Dietz GP, Bräuner-Osborne H, Gloriam DE. (2014) Computer-aided discovery of aromatic l-α-amino acids as agonists of the orphan G protein-coupled receptor GPR139. J Chem Inf Model, 54 (6): 1553-7. [PMID:24826842]
4. Liu C, Bonaventure P, Lee G, Nepomuceno D, Kuei C, Wu J, Li Q, Joseph V, Sutton SW, Eckert W et al.. (2015) GPR139, an Orphan Receptor Highly Enriched in the Habenula and Septum, Is Activated by the Essential Amino Acids L-Tryptophan and L-Phenylalanine. Mol Pharmacol, 88 (5): 911-25. [PMID:26349500]
5. Matsuo A, Matsumoto S, Nagano M, Masumoto KH, Takasaki J, Matsumoto M, Kobori M, Katoh M, Shigeyoshi Y. (2005) Molecular cloning and characterization of a novel Gq-coupled orphan receptor GPRg1 exclusively expressed in the central nervous system. Biochem Biophys Res Commun, 331 (1): 363-9. [PMID:15845401]
6. Pallareti L, Rath TF, Trapkov B, Tsonkov T, Nielsen AT, Harpsøe K, Gentry PR, Bräuner-Osborne H, Gloriam DE, Foster SR. (2023) Pharmacological characterization of novel small molecule agonists and antagonists for the orphan receptor GPR139. Eur J Pharmacol, 943: 175553. [PMID:36736525]
7. Reichard HA, Schiffer HH, Monenschein H, Atienza JM, Corbett G, Skaggs AW, Collia DR, Ray WJ, Serrats J, Bliesath J et al.. (2021) Discovery of TAK-041: a Potent and Selective GPR139 Agonist Explored for the Treatment of Negative Symptoms Associated with Schizophrenia. J Med Chem, 64 (15): 11527-11542. [PMID:34260228]
8. Shi F, Shen JK, Chen D, Fog K, Thirstrup K, Hentzer M, Karlsson JJ, Menon V, Jones KA, Smith KE et al.. (2011) Discovery and SAR of a Series of Agonists at Orphan G Protein-Coupled Receptor 139. ACS Med Chem Lett, 2 (4): 303-6. [PMID:24900311]
9. Süsens U, Hermans-Borgmeyer I, Urny J, Schaller HC. (2006) Characterisation and differential expression of two very closely related G-protein-coupled receptors, GPR139 and GPR142, in mouse tissue and during mouse development. Neuropharmacology, 50 (4): 512-20. [PMID:16378626]
10. Wang D, Stoveken HM, Zucca S, Dao M, Orlandi C, Song C, Masuho I, Johnston C, Opperman KJ, Giles AC et al.. (2019) Genetic behavioral screen identifies an orphan anti-opioid system. Science, 365 (6459): 1267-1273. [PMID:31416932]
11. Wang J, Zhu LY, Liu Q, Hentzer M, Smith GP, Wang MW. (2015) High-throughput screening of antagonists for the orphan G-protein coupled receptor GPR139. Acta Pharmacol Sin, 36 (7): 874-8. [PMID:26027661]