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Target not currently curated in GtoImmuPdb

Target id: 125

Nomenclature: GPR101

Family: Class A Orphans

Gene and Protein Information Click here for help
class A G protein-coupled receptor
Species TM AA Chromosomal Location Gene Symbol Gene Name Reference
Human 7 508 Xq26.3 GPR101 G protein-coupled receptor 101
Mouse 7 511 X A6 Gpr101 G protein-coupled receptor 101
Rat 7 508 Xq36 Gpr101 G protein-coupled receptor 101
Previous and Unofficial Names Click here for help
Database Links Click here for help
Specialist databases
GPCRdb gp101_human (Hs), gp101_mouse (Mm), d4abk4_rat (Rn)
Other databases
ChEMBL Target
Ensembl Gene
Entrez Gene
Human Protein Atlas
RefSeq Nucleotide
RefSeq Protein
Primary Transduction Mechanisms Click here for help
Transducer Effector/Response
Gs family Adenylyl cyclase stimulation
Comments:  G-protein coupling predicted by knowledge-restricted hidden Markov model-based algorithm, and confirmed by mammalian and yeast cell transfection models [1].
References:  1
Tissue Distribution Click here for help
Caudate putamen, hypothalamus
Species:  Human
Technique:  Northern blot
References:  1,3
Brain, spinal cord
Species:  Mouse
Technique:  Northern blot
References:  1
Tissue Distribution Comments
Murine mRNA detected in all brain regions, with strongest signals in the hypothalamus. Prominent expression highly restricted to dopaminergic, serotonergic and noradrenergic nuclei [1].
Expression Datasets Click here for help

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Log average relative transcript abundance in mouse tissues measured by qPCR from Regard, J.B., Sato, I.T., and Coughlin, S.R. (2008). Anatomical profiling of G protein-coupled receptor expression. Cell, 135(3): 561-71. [PMID:18984166] [Raw data: website]

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Clinically-Relevant Mutations and Pathophysiology Comments
Human missense SNP P432L (rs148692008; dbSNP) has been identified as associated with melanoma by whole exome sequencing, but remains untested [4].

Methylation of the GPR101 gene promoter in stage IV colorectal cancer is correlated with longer time to progression. Tumour specific hypermethylation observed [2].
Biologically Significant Variants Click here for help
Type:  Single nucleotide polymorphism
Species:  Human
Amino acid change:  V124L
Global MAF (%):  30
Subpopulation MAF (%):  AFR|AMR|ASN|EUR: 2|24|34|49
Minor allele count:  A=0.303/503
SNP accession: 
Validation:  1000 Genomes, HapMap
Type:  Single nucleotide polymorphism
Species:  Human
Amino acid change:  V238I
Global MAF (%):  1
Subpopulation MAF (%):  AFR|AMR: 4|1
Minor allele count:  T=0.011/18
Comment on frequency:  Low frequency (<10% in all tested populations)
SNP accession: 
Validation:  1000 Genomes, Frequency
Type:  Single nucleotide polymorphism
Species:  Human
Amino acid change:  L376P
Global MAF (%):  16
Subpopulation MAF (%):  AFR|AMR|ASN|EUR: 26|13|11|14
Minor allele count:  G=0.159/263
SNP accession: 
Validation:  1000 Genomes, HapMap
Type:  Single nucleotide polymorphism
Species:  Human
Amino acid change:  T293I
Global MAF (%):  5
Subpopulation MAF (%):  AFR|AMR|ASN: 19|1|1
Minor allele count:  A=0.050/83
SNP accession: 
Validation:  1000 Genomes, Frequency


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1. Bates B, Zhang L, Nawoschik S, Kodangattil S, Tseng E, Kopsco D, Kramer A, Shan Q, Taylor N, Johnson J, Sun Y, Chen HM, Blatcher M, Paulsen JE, Pausch MH. (2006) Characterization of Gpr101 expression and G-protein coupling selectivity. Brain Res, 1087 (1): 1-14. [PMID:16647048]

2. Kober P, Bujko M, Olędzki J, Tysarowski A, Siedlecki JA. (2011) Methyl-CpG binding column-based identification of nine genes hypermethylated in colorectal cancer. Mol Carcinog, 50 (11): 846-56. [PMID:21438024]

3. Lee DK, Nguyen T, Lynch KR, Cheng R, Vanti WB, Arkhitko O, Lewis T, Evans JF, George SR, O'Dowd BF. (2001) Discovery and mapping of ten novel G protein-coupled receptor genes. Gene, 275 (1): 83-91. [PMID:11574155]

4. Wei X, Walia V, Lin JC, Teer JK, Prickett TD, Gartner J, Davis S, NISC Comparative Sequencing Program, Stemke-Hale K, Davies MA et al.. (2011) Exome sequencing identifies GRIN2A as frequently mutated in melanoma. Nat Genet, 43 (5): 442-6. [PMID:21499247]


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