Relaxin/insulin-like family peptide receptor 4

Identifiers

RXFP4 ; GPCR142; GPR100; RLN3R2; RXFPR4

External IDs

OMIM: 609043 MGI: 2182926 HomoloGene: 18775 IUPHAR: 354 ChEMBL: 1628473 GeneCards: RXFP4 Gene

Gene ontology
Molecular function	• angiotensin type II receptor activity • protein binding • G-protein coupled peptide receptor activity
Cellular component	• plasma membrane • integral component of plasma membrane
Biological process	• phospholipase C-activating G-protein coupled receptor signaling pathway • neuropeptide signaling pathway • angiotensin-activated signaling pathway
Sources: Amigo / QuickGO

Orthologs

Species

Human

Mouse

RefSeq (mRNA)

RefSeq (protein)

Location (UCSC)

Chr 1:
155.94 – 155.94 Mb

Chr 3:
88.65 – 88.65 Mb

PubMed search

Relaxin/insulin-like family peptide receptor 4, also known as RXFP4, is a human G-protein coupled receptor.^[1]

GPR100 is a member of the rhodopsin family of G protein-coupled receptors GPRs (Fredriksson et al., 2003).[supplied by OMIM]^[1]

References

1 2 "Entrez Gene: RXFP4 relaxin/insulin-like family peptide receptor 4".

External links

"Relaxin Family Peptide Receptors: RXFP4". IUPHAR Database of Receptors and Ion Channels. International Union of Basic and Clinical Pharmacology.

Bathgate RA, Ivell R, Sanborn BM, et al. (2005). "Receptors for relaxin family peptides". Ann. N. Y. Acad. Sci. 1041: 61–76. doi:10.1196/annals.1282.010. PMID 15956688.
Bathgate RA, Ivell R, Sanborn BM, et al. (2006). "International Union of Pharmacology LVII: recommendations for the nomenclature of receptors for relaxin family peptides". Pharmacol. Rev. 58 (1): 7–31. doi:10.1124/pr.58.1.9. PMID 16507880.
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): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
Liu C, Chen J, Sutton S, et al. (2004). "Identification of relaxin-3/INSL7 as a ligand for GPCR142". J. Biol. Chem. 278 (50): 50765–70. doi:10.1074/jbc.M308996200. PMID 14522967.
Boels K, Schaller HC (2004). "Identification and characterisation of GPR100 as a novel human G-protein-coupled bradykinin receptor". Br. J. Pharmacol. 140 (5): 932–8. doi:10.1038/sj.bjp.0705521. PMC 1574110. PMID 14530218.
Fredriksson R, Höglund PJ, Gloriam DE, et al. (2003). "Seven evolutionarily conserved human rhodopsin G protein-coupled receptors lacking close relatives". FEBS Lett. 554 (3): 381–8. doi:10.1016/S0014-5793(03)01196-7. PMID 14623098.
Liu C, Chen J, Kuei C, et al. (2005). "Relaxin-3/insulin-like peptide 5 chimeric peptide, a selective ligand for G protein-coupled receptor (GPCR)135 and GPCR142 over leucine-rich repeat-containing G protein-coupled receptor 7". Mol. Pharmacol. 67 (1): 231–40. doi:10.1124/mol.104.006700. PMID 15465925.
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.
Liu C, Kuei C, Sutton S, et al. (2005). "INSL5 is a high affinity specific agonist for GPCR142 (GPR100)". J. Biol. Chem. 280 (1): 292–300. doi:10.1074/jbc.M409916200. PMID 15525639.
Gregory SG, Barlow KF, McLay KE, et al. (2006). "The DNA sequence and biological annotation of human chromosome 1". Nature 441 (7091): 315–21. doi:10.1038/nature04727. PMID 16710414.

This article incorporates text from the United States National Library of Medicine, which is in the public domain.

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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Relaxin/insulin-like family peptide receptor 4

See also

References

External links

Further reading