MRGPRX2

MAS-related GPR, member X2

Identifiers

MRGPRX2 ; MGRG3; MRGX2

External IDs

OMIM: 607228 MGI: 3588270 HomoloGene: 24986 IUPHAR: 157 ChEMBL: 5849 GeneCards: MRGPRX2 Gene

Gene ontology
Molecular function	• G-protein coupled receptor activity • neuropeptide binding • mast cell secretagogue receptor activity
Cellular component	• integral component of plasma membrane • integral component of membrane • mast cell granule
Biological process	• G-protein coupled receptor signaling pathway • sensory perception of pain • sleep • positive regulation of cytokinesis • mast cell degranulation • mast cell activation
Sources: Amigo / QuickGO

Orthologs

Species

Human

Mouse

RefSeq (mRNA)

RefSeq (protein)

Location (UCSC)

Chr 11:
19.05 – 19.06 Mb

Chr 7:
48.44 – 48.46 Mb

PubMed search

Mas-related G-protein coupled receptor member X2 is a protein that in humans is encoded by the MRGPRX2 gene.^[1]^[2]

References

↑ Dong X, Han S, Zylka MJ, Simon MI, Anderson DJ (Sep 2001). "A diverse family of GPCRs expressed in specific subsets of nociceptive sensory neurons". Cell 106 (5): 619–632. doi:10.1016/S0092-8674(01)00483-4. PMID 11551509.
↑ "Entrez Gene: MRGPRX2 MAS-related GPR, member X2".

Takeda S, Kadowaki S, Haga T, et al. (2002). "Identification of G protein-coupled receptor genes from the human genome sequence". FEBS Lett. 520 (1–3): 97–101. doi:10.1016/S0014-5793(02)02775-8. PMID 12044878.
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): 16899–16903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
Robas N, Mead E, Fidock M (2004). "MrgX2 is a high potency cortistatin receptor expressed in dorsal root ganglion". J. Biol. Chem. 278 (45): 44400–44404. doi:10.1074/jbc.M302456200. PMID 12915402.
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): 2121–2127. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
Yang S, Liu Y, Lin AA, et al. (2005). "Adaptive evolution of MRGX2, a human sensory neuron specific gene involved in nociception". Gene 352: 30–35. doi:10.1016/j.gene.2005.03.001. PMID 15862286.

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) Histamine (H1 H2 H3 H4) Melatonin (1A 1B 1C) TAAR (1 2 3 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) Lactate Lysophosphatidic acid (1 2 3 4 5 6) Lysophospholipid (1 2 3 4 5 6 7 8) Niacin (1 2) 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) 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) GHB receptor 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

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 77 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	ADGRG (1 2 3 4 5 6 7)

Orphan	GPR (56 64 97 98 110 111 112 113 114 115 116 123 124 125 126 128 133 143 144 155 157)

Other	Brain-specific angiogenesis inhibitor (1 2 3) Cadherin (1 2 3) Calcitonin CALCRL CD97 Corticotropin-releasing hormone (1 2) EMR (1 2 3) Glucagon (GR GIPR GLP1R GLP2R) Growth hormone releasing hormone PACAPR1 GPR Latrophilin (1 2 3 ELTD1) Methuselah-like proteins Parathyroid hormone (1 2) Secretin Vasoactive intestinal peptide (1 2)

Class C: Metabotropic glutamate / pheromone

Taste	TAS1R (1 2 3) 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)

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)

Class F: Frizzled / Smoothened

Frizzled	Frizzled (1 2 3 4 5 6 7 8 9 10)

Smoothened	Smoothened

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MRGPRX2

See also

References

Further reading