GPR45

Protein-coding gene in humans

GPR45

Identifiers

Aliases

GPR45, PSP24, PSP24(ALPHA), PSP24A, G protein-coupled receptor 45

External IDs

OMIM: 604838 MGI: 2135882 HomoloGene: 5228 GeneCards: GPR45

Gene location (Human)

Chr.	Chromosome 2 (human)^[1]

Band	2q12.1	Start	105,241,743 bp^[1]
Band	2q12.1	End	105,243,467 bp^[1]

Gene location (Mouse)

Chr.	Chromosome 1 (mouse)^[2]

Band	1\|1 B	Start	42,992,032 bp^[2]
Band	1\|1 B	End	43,074,616 bp^[2]

RNA expression pattern

Bgee

Human

Mouse (ortholog)

Top expressed in

prefrontal cortex

Brodmann area 9

cingulate gyrus

hypothalamus

nucleus accumbens

amygdala

embryo

caudate nucleus

putamen

substantia nigra

Top expressed in

ganglionic eminence

arcuate nucleus

paraventricular nucleus of hypothalamus

dorsomedial hypothalamic nucleus

superior frontal gyrus

ventral tegmental area

dorsal tegmental nucleus

superior colliculus

facial motor nucleus

nucleus accumbens

More reference expression data

BioGPS


More reference expression data

Gene ontology
Molecular function	G protein-coupled receptor activity signal transducer activity
Cellular component	integral component of membrane plasma membrane membrane
Biological process	signal transduction G protein-coupled receptor signaling pathway
Sources:Amigo / QuickGO

Orthologs

Species

Human

Mouse

Entrez


11250


93690

Ensembl


ENSG00000135973


ENSMUSG00000041907

UniProt


Q9Y5Y3


Q9EQQ4

RefSeq (mRNA)


NM_007227


NM_053107

RefSeq (protein)


NP_009158


NP_444337

Location (UCSC)

Chr 2: 105.24 – 105.24 Mb

Chr 1: 42.99 – 43.07 Mb

PubMed search

^[3]

^[4]

Wikidata

View/Edit Human

View/Edit Mouse

Probable G-protein coupled receptor 45 is a protein that in humans is encoded by the GPR45 gene.^[5]^[6]

This intronless gene encodes a member of the G protein-coupled receptor (GPCR) family. Members of this protein family contain seven putative transmembrane domains and may mediate signaling processes to the interior of the cell via activation of heterotrimeric G proteins. This protein may function in the central nervous system.^[6]

References

^ ^a ^b ^c GRCh38: Ensembl release 89: ENSG00000135973 - Ensembl, May 2017
^ ^a ^b ^c GRCm38: Ensembl release 89: ENSMUSG00000041907 - Ensembl, May 2017
^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ Marchese A, Sawzdargo M, Nguyen T, Cheng R, Heng HH, Nowak T, Im DS, Lynch KR, George SR, O'dowd BF (May 1999). "Discovery of three novel orphan G-protein-coupled receptors". Genomics. 56 (1): 12–21. doi:10.1006/geno.1998.5655. PMID 10036181.
^ ^a ^b "Entrez Gene: GPR45 G protein-coupled receptor 45".

Kawasawa Y, Kume K, Nakade S, et al. (2000). "Brain-specific expression of novel G-protein-coupled receptors, with homologies to Xenopus PSP24 and human GPR45". Biochem. Biophys. Res. Commun. 276 (3): 952–6. doi:10.1006/bbrc.2000.3569. PMID 11027574.
Kawasawa Y, Kume K, Izumi T, Shimizu T (2000). "Mammalian PSP24s (alpha and beta isoforms) are not responsive to lysophosphatidic acid in mammalian expression systems". Biochem. Biophys. Res. Commun. 276 (3): 957–64. doi:10.1006/bbrc.2000.3570. PMID 11027575.
Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. Bibcode:2002PNAS...9916899M. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
Hillier LW, Graves TA, Fulton RS, et al. (2005). "Generation and annotation of the DNA sequences of human chromosomes 2 and 4". Nature. 434 (7034): 724–31. Bibcode:2005Natur.434..724H. doi:10.1038/nature03466. PMID 15815621.

Cell surface receptor: G protein-coupled receptors

Class A: Rhodopsin-like

Neurotransmitter

Adrenergic	α1 (A B D) α2 (A B C) β1 β2 β3
Purinergic	Adenosine (A1 A2A A2B A3) P2Y (1 2 4 5 6 8 9 10 11 12 13 14)
Serotonin	(all but 5-HT3) 5-HT1 (A B D E F) 5-HT2 (A B C) 5-HT (4 5A 6 7)
Other	Acetylcholine (M1 M2 M3 M4 M5) Dopamine D1 D2 D3 D4 D5 GHB receptor Histamine H1 H2 H3 H4 Melatonin (1A 1B 1C) TAAR (1 2 5 6 8 9)

Metabolites and
signaling molecules

Eicosanoid	CysLT (1 2) LTB4 1 2 FPRL1 OXE Prostaglandin DP (1 2), EP (1 2 3 4), FP Prostacyclin Thromboxane
Other	Bile acid Cannabinoid (CB1 CB2, GPR (18 55 119)) EBI2 Estrogen Free fatty acid (1 2 3 4) Hydroxycarboxylic acids 1 2 3 Lysophosphatidic acid (1 2 3 4 5 6) Lysophospholipid (1 2 3 4 5 6 7 8) Oxoglutarate PAF Sphingosine-1-phosphate (1 2 3 4 5) Succinate

Peptide

Neuropeptide

B/W (1
2)
FF (1
2)
S
Y (1
2
4
5)
Neuromedin (B
U (1
2))
Neurotensin (1
2)

Other

Anaphylatoxin (C3a
C5a (1
2))
Angiotensin (1
2)
Apelin
Bombesin
- BRS3
- GRPR
- NMBR)
- Bradykinin (B1
- B2)
Chemokine
Cholecystokinin (A
B)
Endothelin
- A
- B
Formyl peptide (1
2
3)
FSH
Galanin (1
2
3)
Gonadotropin-releasing hormone (1
2)
Ghrelin
Kisspeptin
Luteinizing hormone/choriogonadotropin
MAS (1
1L
D
E
F
G
X1
X2
X3
X4)
Melanocortin (1
2
3
4
5)
MCHR (1
2)
Motilin
Opioid (Delta
Kappa
Mu
Nociceptin & Zeta, but not Sigma)
Orexin (1
2)
Oxytocin
Prokineticin (1
2)
Prolactin-releasing peptide
Relaxin (1
2
3
4)
Somatostatin (1
2
3
4
5)
Tachykinin (1
2
3)
Thyrotropin
Thyrotropin-releasing hormone
Urotensin-II
Vasopressin (1A
1B
2)

Miscellaneous

Taste, bitter	TAS2R 1 3 4 5 7 8 9 10 13 14 16 19 20 30 31 38 39 40 41 42 43 45 46 50 60 Vomeronasal receptor type 1
Orphan	GPR (1 3 4 6 12 15 17 18 19 20 21 22 23 25 26 27 31 32 33 34 35 37 39 42 44 45 50 52 55 61 62 63 65 68 75 78 81 82 83 84 85 87 88 92 101 103 109A 109B 119 120 132 135 137B 139 141 142 146 148 149 150 151 152 153 160 161 162 171 173 174 176 177 182 183)
Other	Adrenomedullin Olfactory Opsin (3 4 5 1LW 1MW 1SW RGR RRH) Protease-activated (1 2 3 4) SREB (1 2 3)

Class B: Secretin-like

Adhesion	ADGRB Brain-specific angiogenesis inhibitor 1 2 3 ADGRC Cadherin 1 2 3 ADGRE EMR 1 2 3 CD97 ADGRG 1 2 3 4 5 6 7 ADGRL Latrophilin 1 2 3 ELTD1
Orphan	GPR (56 64 97 98 110 111 112 113 114 115 116 123 124 125 126 128 133 143 144 155 157)
Other	Calcitonin CALCRL Corticotropin-releasing hormone (1 2) Glucagon (GR GIPR GLP1R GLP2R) Growth-hormone-releasing hormone PACAPR1 GPR Methuselah-like proteins Parathyroid hormone (1 2) Secretin Vasoactive intestinal peptide (1 2)

Class C: Metabotropic glutamate / pheromone

Taste, sweet	TAS1R 1 2 3 Vomeronasal receptor, type 2
Other	Calcium-sensing receptor GABA_B (1 2) Glutamate receptor (Metabotropic glutamate (1 2 3 4 5 6 7 8)) GPRC6A GPR (156 158 179) RAIG (1 2 3 4)