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GHRH receptor

Family: Glucagon receptor family

Contents:
Gene and Protein Information
Previous and Unofficial Names
Database Links
Agonists
Antagonists
Transduction Mechanisms
Tissue Distribution
Expression Datasets
Functional Assays
Physiological Functions
Phenotypes, Alleles and Disease Models
Clinically-Relevant Mutations and Pathophysiology
Biologically Significant Variants
References
Gene and Protein Information
class B G protein-coupled receptor
Species TM AA Chromosomal Location Gene Symbol Gene Name Reference
Human 7 423 7p14 GHRHR growth hormone releasing hormone receptor 9,18
Mouse 7 423 6 B3 Ghrhr growth hormone releasing hormone receptor 16,19
Rat 7 464 4q24 Ghrhr growth hormone releasing hormone receptor 16
Previous and Unofficial Names
GHRF
GRF
GRH
GHRHREC
GRF receptor
GRFR
growth hormone releasing hormone receptor
growth hormone-releasing factor receptor
growth hormone-releasing hormone receptor
Ghrfr
lit
Growth hormone-releasing receptor
Database Links
ChEMBL Target
DrugBank Target
Ensembl
Entrez Gene
GeneCards
GenitoUrinary Development Molecular Anatomy Project
HomoloGene
Human Protein Reference Database
InterPro
KEGG Gene
OMIM
Orphanet Gene
PharmGKB Gene
Protein Ontology (PRO)
RefSeq Nucleotide
RefSeq Protein
TreeFam
UniGene Hs.
UniProt
Wikipedia
Search for 3D structures on the PDB
Search by keyword: Glucagon receptor family GHRH receptor
Natural/Endogenous Ligand(s)
GHRH {Sp: Human} , GHRH {Sp: Mouse} , GHRH {Sp: Rat}
Agonists
Key to terms and symbols Click column headers to sort
Ligand Sp. Action Affinity Units Reference
[125I]GHRH (human) Rn Full agonist 7.6 pKd 5
GHRH-(1-29)-NH2 (rat) Rn Full agonist 9.1 pIC50 8
GHRH-(1-29)-NH2 (human) Rn Full agonist 8.2 pIC50 8
GHRH-(1-29)-OH (human) Rn Full agonist 8.0 pIC50 8
Antagonists
Key to terms and symbols Click column headers to sort
Ligand Sp. Action Affinity Units Reference
JV-1-37 Rn Antagonist 10.4 pKi 25
JV-1-40 Rn Antagonist 10.4 pKi 25
JV-1-41 Rn Antagonist 10.4 pKi 25
JV-1-42 Rn Antagonist 10.4 pKi 25
JV-1-43 Rn Antagonist 10.4 pKi 25
MZ-4-169 Rn Antagonist 10.4 pKi 27
MZ-4-243 Rn Antagonist 10.4 pKi 27
JV-1-10 Rn Antagonist 10.3 pKi 25
MZ-4-181 Rn Antagonist 10.3 pKi 27
JV-1-36 Rn Antagonist 10.1 – 10.4 pKi 22,25-26
JV-1-62 Rn Antagonist 10.2 pKi 26
JV-1-63 Rn Antagonist 10.2 pKi 26
MZ-5-156 Rn Antagonist 10.2 pKi 28
MZ-6-55 Rn Antagonist 10.2 pKi 25
JV-1-38 Rn Antagonist 10.1 pKi 22,25-26
JV-1-39 Rn Antagonist 10.1 pKi 25
MZ-4-71 Rn Antagonist 9.9 pKi 27-28
[Ac-Tyr1, D-Arg2]GHRH-(1-29)-NH2 (human) Rn Antagonist 8.3 – 8.5 pKi 25-28
MZ-5-192 Rn Antagonist 10.2 pIC50 28
MZ-5-78 Rn Antagonist 10.2 pIC50 28
Primary Transduction Mechanisms
Transducer Effector/Response
Gs family Adenylate cyclase stimulation
Calcium channel
References:  14
Tissue Distribution
Pituitary.
Species:  Rat
Technique:  Northern blotting.
References:  9
Henle's loop of the renal medulla, anterior pituitary.
Species:  Rat
Technique:  Northern blotting.
References:  4
Renal medulla, renal pelvis, pituitary >> heart, lung, duodenum, small intestine, spleen, adrenal gland, epididymis, skeletal muscle, cerebellum, thyroid gland, colon, renal cortex, ureter, hypothalamus, cerebral cortex, brainstem.
Species:  Rat
Technique:  RT-PCR and Southern blotting.
References:  17
Pituitary and kidney.
Species:  Rat
Technique:  in situ hybridisation and RNAse protection assay.
References:  23
Expression Datasets

Click here to show/hide data

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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Functional Assays
Measurement of cAMP in COS cells transfected with the human GHRH receptor.
Species:  Human
Tissue:  Transient transfected COS cells.
Response measured:  Stimulation of intracellular cAMP accumulation.
References:  9
Measuring the changes in membrane potential of GH-secreting adenoma cells upon receptor activation.
Species:  Human
Tissue:  GH-secreting adenoma cells.
Response measured:  Increase in Na2+ conductance.
References:  23
Measurement of changes in cAMP and GH release from rat pituitary cells when treated with GHRH receptor antagonists.
Species:  Rat
Tissue:  Superfused pituitary cells.
Response measured:  Inhibition of cAMP and GH release upon antagonist binding.
References:  13
Measurement of intracellular cAMP levels in GH3 cells.
Measurement of GH (growth hormone) and PRL (prolactin) secretion from GH3 cells.
Species:  Human
Tissue:  GH3 pituitary tumour cells.
Response measured:  Increase in intracellular cAMP and cAMP efflux.
Increases in GH and PRL secretion.
References:  15
Physiological Functions
Stimulation of GH release.
Species:  Human
Tissue:  Pancreatic tumour.
References:  11,21
Stimulation of pituitary somatotroph cell proliferation.
Species:  Rat
Tissue:  Pituitary somatotroph cells.
References:  3
Stimulation of GH gene transcription.
Species:  Human
Tissue:  Pituitary cells.
References:  2,10
Phenotypes, Alleles and Disease Models Mouse data from MGI

Click here to show/hide data

Allele Composition & genetic background Accession Phenotype Id Phenotype Reference
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0003194 abnormal frequency of paradoxical sleep PMID: 12388430 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr/J
MGI:95710  MP:0002078 abnormal glucose homeostasis PMID: 15388648 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0001882 abnormal lactation PMID: 1270792 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0005266 abnormal metabolism PMID: 12537301 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0001731 abnormal postnatal growth PMID: 12537301  978118 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0002113 abnormal skeleton development PMID: 978118 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0001501 abnormal sleep pattern PMID: 12388430 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0008322 abnormal somatotroph morphology PMID: 6194978 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0008437 absent somatotroph secretory granules PMID: 6194978 
Ghrhr+|Ghrhrlit|M14104Asr|M14104Asr+ Ghrhrlit/Ghrhr+,M14104Asr/M14104Asr+
C57BL/6J-Ghrhr M14104Asr
MGI:3819960  MGI:95710  MP:0001262 decreased body weight PMID: 18063435 
Ghrhrlit|M14104Asr|M14104Asr+ Ghrhrlit/Ghrhrlit,M14104Asr/M14104Asr+
C57BL/6J-Ghrhr M14104Asr
MGI:3819960  MGI:95710  MP:0001262 decreased body weight PMID: 18063435 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr/J
MGI:95710  MP:0001262 decreased body weight PMID: 15388648 
Ghrhrlit|Prlrtm1Cnp Ghrhrlit/Ghrhrlit,Prlrtm1Cnp/Prlrtm1Cnp
involves: 129P2/OlaHsd * C57BL/6J
MGI:95710  MGI:97763  MP:0001262 decreased body weight PMID: 15388648 
Ghrhrlit|Prlrtm1Cnp Ghrhrlit/Ghrhrlit,Prlrtm1Cnp/Prlrtm1Cnp
involves: 129P2/OlaHsd * C57BL/6J
MGI:95710  MGI:97763  MP:0000063 decreased bone density PMID: 15388648 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0004016 decreased bone mass PMID: 12537301 
Ghrhr+|Ghrhrlit|M14104Asr|M14104Asr+ Ghrhrlit/Ghrhr+,M14104Asr/M14104Asr+
C57BL/6J-Ghrhr M14104Asr
MGI:3819960  MGI:95710  MP:0004016 decreased bone mass PMID: 18063435 
Ghrhrlit|M14104Asr|M14104Asr+ Ghrhrlit/Ghrhrlit,M14104Asr/M14104Asr+
C57BL/6J-Ghrhr M14104Asr
MGI:3819960  MGI:95710  MP:0004016 decreased bone mass PMID: 18063435 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr/J
MGI:95710  MP:0005560 decreased circulating glucose level PMID: 15388648 
Ghrhrlit|Prlrtm1Cnp Ghrhrlit/Ghrhrlit,Prlrtm1Cnp/Prlrtm1Cnp
involves: 129P2/OlaHsd * C57BL/6J
MGI:95710  MGI:97763  MP:0005560 decreased circulating glucose level PMID: 15388648 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0005120 decreased circulating growth hormone level PMID: 7679139 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr/J
MGI:95710  MP:0004701 decreased circulating insulin-like growth factor I level PMID: 15388648 
Ghrhrlit|Prlrtm1Cnp Ghrhrlit/Ghrhrlit,Prlrtm1Cnp/Prlrtm1Cnp
involves: 129P2/OlaHsd * C57BL/6J
MGI:95710  MGI:97763  MP:0004701 decreased circulating insulin-like growth factor I level PMID: 15388648 
Ghrhr+|Ghrhrlit|M14104Asr|M14104Asr+ Ghrhrlit/Ghrhr+,M14104Asr/M14104Asr+
C57BL/6J-Ghrhr M14104Asr
MGI:3819960  MGI:95710  MP:0008152 decreased diameter of femur PMID: 18063435 
Ghrhrlit|M14104Asr|M14104Asr+ Ghrhrlit/Ghrhrlit,M14104Asr/M14104Asr+
C57BL/6J-Ghrhr M14104Asr
MGI:3819960  MGI:95710  MP:0008152 decreased diameter of femur PMID: 18063435 
Ghrhrlit|Prlrtm1Cnp Ghrhrlit/Ghrhrlit,Prlrtm1Cnp/Prlrtm1Cnp
involves: 129P2/OlaHsd * C57BL/6J
MGI:95710  MGI:97763  MP:0003910 decreased eating behavior PMID: 15388648 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0005136 decreased growth hormone level PMID: 1270792 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr/J
MGI:95710  MP:0003961 decreased lean body mass PMID: 15388648 
Ghrhrlit|Prlrtm1Cnp Ghrhrlit/Ghrhrlit,Prlrtm1Cnp/Prlrtm1Cnp
involves: 129P2/OlaHsd * C57BL/6J
MGI:95710  MGI:97763  MP:0003961 decreased lean body mass PMID: 15388648 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0005138 decreased prolactin level PMID: 1270792 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0008329 decreased somatotroph cell number PMID: 6194978 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0008417 decreased somatotroph cell size PMID: 6194978 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0008436 decreased somatotroph secretory granule number PMID: 6194978 
Ghrhrlit|Prlrtm1Cnp Ghrhrlit/Ghrhrlit,Prlrtm1Cnp/Prlrtm1Cnp
involves: 129P2/OlaHsd * C57BL/6J
MGI:95710  MGI:97763  MP:0005293 impaired glucose tolerance PMID: 15388648 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr/J
MGI:95710  MP:0000062 increased bone density PMID: 15388648 
Ghrhr+|Ghrhrlit|M14104Asr|M14104Asr+ Ghrhrlit/Ghrhr+,M14104Asr/M14104Asr+
C57BL/6J-Ghrhr M14104Asr
MGI:3819960  MGI:95710  MP:0010120 increased bone mineral density PMID: 18063435 
Ghrhrlit|M14104Asr|M14104Asr+ Ghrhrlit/Ghrhrlit,M14104Asr/M14104Asr+
C57BL/6J-Ghrhr M14104Asr
MGI:3819960  MGI:95710  MP:0010120 increased bone mineral density PMID: 18063435 
Ghrhrlit|Prlrtm1Cnp Ghrhrlit/Ghrhrlit,Prlrtm1Cnp/Prlrtm1Cnp
involves: 129P2/OlaHsd * C57BL/6J
MGI:95710  MGI:97763  MP:0005559 increased circulating glucose level PMID: 15388648 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr/J
MGI:95710  MP:0002079 increased circulating insulin level PMID: 15388648 
Ghrhrlit|Prlrtm1Cnp Ghrhrlit/Ghrhrlit,Prlrtm1Cnp/Prlrtm1Cnp
involves: 129P2/OlaHsd * C57BL/6J
MGI:95710  MGI:97763  MP:0002079 increased circulating insulin level PMID: 15388648 
Ghrhrlit|Prlrtm1Cnp Ghrhrlit/Ghrhrlit,Prlrtm1Cnp/Prlrtm1Cnp
involves: 129P2/OlaHsd * C57BL/6J
MGI:95710  MGI:97763  MP:0005669 increased circulating leptin level PMID: 15388648 
Ghrhr+|Ghrhrlit|M14104Asr|M14104Asr+ Ghrhrlit/Ghrhr+,M14104Asr/M14104Asr+
C57BL/6J-Ghrhr M14104Asr
MGI:3819960  MGI:95710  MP:0008162 increased diameter of tibia PMID: 18063435 
Ghrhrlit|M14104Asr|M14104Asr+ Ghrhrlit/Ghrhrlit,M14104Asr/M14104Asr+
C57BL/6J-Ghrhr M14104Asr
MGI:3819960  MGI:95710  MP:0008162 increased diameter of tibia PMID: 18063435 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0003212 increased susceptibility to age related obesity PMID: 1270792 
Ghrhrlit|Prlrtm1Cnp Ghrhrlit/Ghrhrlit,Prlrtm1Cnp/Prlrtm1Cnp
involves: 129P2/OlaHsd * C57BL/6J
MGI:95710  MGI:97763  MP:0003212 increased susceptibility to age related obesity PMID: 15388648 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0010024 increased total body fat amount PMID: 7679139 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr/J
MGI:95710  MP:0010024 increased total body fat amount PMID: 15388648 
Ghrhrlit|Prlrtm1Cnp Ghrhrlit/Ghrhrlit,Prlrtm1Cnp/Prlrtm1Cnp
involves: 129P2/OlaHsd * C57BL/6J
MGI:95710  MGI:97763  MP:0010024 increased total body fat amount PMID: 15388648 
Ghrhrlit|Prlrtm1Cnp Ghrhrlit/Ghrhrlit,Prlrtm1Cnp/Prlrtm1Cnp
involves: 129P2/OlaHsd * C57BL/6J
MGI:95710  MGI:97763  MP:0005331 insulin resistance PMID: 15388648 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0001261 obese PMID: 12537301 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0001732 postnatal growth retardation PMID: 1270792 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr/J
MGI:95710  MP:0008489 postnatal slow weight gain PMID: 15388648 
Ghrhrlit|Prlrtm1Cnp Ghrhrlit/Ghrhrlit,Prlrtm1Cnp/Prlrtm1Cnp
involves: 129P2/OlaHsd * C57BL/6J
MGI:95710  MGI:97763  MP:0008489 postnatal slow weight gain PMID: 15388648 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0008974 proportional dwarf PMID: 978118 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0001922 reduced male fertility PMID: 1270792 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr/J
MGI:95710  MP:0003109 short femur PMID: 15388648 
Ghrhrlit|Prlrtm1Cnp Ghrhrlit/Ghrhrlit,Prlrtm1Cnp/Prlrtm1Cnp
involves: 129P2/OlaHsd * C57BL/6J
MGI:95710  MGI:97763  MP:0003109 short femur PMID: 15388648 
Ghrhrlit Ghrhrlit/Ghrhrlit
C57BL/6J-Ghrhr
MGI:95710  MP:0005361 small pituitary gland PMID: 1270792 
Clinically-Relevant Mutations and Pathophysiology
Disease:  Isolated growth hormone deficiency type IB
OMIM: 
Orphanet: 
References: 
Mutations not determined
Biologically Significant Variants
The Ala176 -> Val mutation was found in two male siblings born in Pakistan who exhibited no abnormalities apart from a short stature and delayed bone age.
Expression of this mutant receptor in CHO cells showed that the mutation disrupted the signalling pathways of the receptor and caused GHRH resistance.
Type:  Single nucleotide polymorphism.
Species:  Human
References:  7
An Ala -> Thr mutation has been found in human GH-secreting somatotrophinomas (however it is not a somatic mutation). Transfection studies have shown the receptor to have an increased sensitivity to GHRH, thought possible to have a role in tumorigenesis.
Type:  Single nucleotide polymorphism.
Species:  Human
References:  1
The rat receptor has a splice variant in which 41 amino acids from exon 11 are inserted into the third cytoplasmic domain. This variant binds GHRH but does not transduce a signal.
Type:  Splice variant.
Species:  Rat
References:  19
A splice variant of the human GHRH receptor has been found in the normal pituitary and pituitary tumours. It is also found to be truncated and unable to transmit GHRH signals.
Type:  Splice variants.
Species:  Human
References:  12,20,24
A splice variant has been found in rat pituitary cells. The splicing occurs at the carboxyl-terminal and retains the ability of the receptor to signal as normal.
Type:  Splice variants.
Species:  Rat
References:  29
A splice variant has been identified in human bone cancer cells It appears to mediate the antiproliferative effects of GHRH receptor antagonists in tumoral cells.
Type:  Splice variants.
Species:  Human
References:  6

REFERENCES

To cite this database page, please use the following:

Dominique Bataille, Philippe Delagrange, Daniel J. Drucker, Burkhard Göke, Rebecca Hills, Kelly E. Mayo, Laurence J. Miller, Bernard Thorens.
Glucagon receptor family: GHRH receptor. Last modified on 30/01/2013. Accessed on 24/05/2013. IUPHAR database (IUPHAR-DB), http://www.iuphar-db.org/DATABASE/ObjectDisplayForward?objectId=247.


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