image of a green circle Annotated and expert reviewed. Please contact us if you can help with updates. 

secretin 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
General Comments
References
Gene and Protein Information
class B G protein-coupled receptor
Species TM AA Chromosomal Location Gene Symbol Gene Name Reference
Human 7 440 2q14.1 SCTR secretin receptor 1,11,13
Mouse 7 337 1 E2.3 Sctr secretin receptor
Rat 7 449 13 Sctr secretin receptor 9
Previous and Unofficial Names
SCT-R
MGC93381
6530402O03Rik
Database Links
ChEMBL Target
DrugBank Target
Ensembl
Entrez Gene
GeneCards
GenitoUrinary Development Molecular Anatomy Project
HomoloGene
Human Protein Reference Database
InterPro
KEGG Gene
OMIM
PharmGKB Gene
PhosphoSitePlus
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 secretin receptor
Natural/Endogenous Ligand(s)
secretin {Sp: Rat} , secretin {Sp: Human} , secretin {Sp: Mouse}
Agonists
Key to terms and symbols View all chemical structures Click column headers to sort
Ligand Sp. Action Affinity Units Reference
[125I]secretin (pig) Rn Full agonist 7.7 – 9.2 pKd 9
[Bpa6,Tyr10]secretin-27 (rat) Rn Full agonist 7.6 pKd 4
secretin {Sp: Pig} Rn Full agonist 8.0 – 9.0 pKi 9
secretin {Sp: Rat} Rn Full agonist 8.0 – 9.0 pKi 4-5
secretin {Sp: Human} Hs Full agonist 9.7 pEC50 1
secretin {Sp: Pig} Rn Agonist 9.0 pIC50 6
[Arg16]chicken secretin Rn Agonist 7.7 pIC50 6
VIP {Sp: Human, Mouse, Rat} Rn Agonist 6.2 pIC50 6
VIP {Sp: Human, Mouse, Rat} Hs Partial agonist 5.4 pIC50 9
secretin-(5-27) (pig) Rn Full agonist 5.0 pIC50 9
View species-specific agonist tables
Antagonists
Key to terms and symbols Click column headers to sort
Ligand Sp. Action Affinity Units Reference
[(CH2NH)4,5]secretin Hs Antagonist 5.3 pKi 7
Primary Transduction Mechanisms
Transducer Effector/Response
Adenylate cyclase stimulation
Calcium channel
References: 
Tissue Distribution
Duodenum, jejunum, pancreas, tertiary bronchus, lung parenchyma and pulmonary artery.
Species:  Human
Technique:  RT-PCR.
References:  3
Cerebellum, central amygdala, hippocampus, area postrema and the nucleus of the tractus solitary.
Species:  Rat
Technique:  RT-PCR.
References:  16
Jejunum, pancreas, epididymis.
Species:  Rat
Technique:  RT-PCR.
References:  2
Epididymis: Principle cells of the capus region > initial segement.
Species:  Rat
Technique:  Western blotting.
References:  2
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]

There should be a chart of expression data here, you may need to enable JavaScript!
Functional Assays
Measurement of cAMP levels in CHO cells transfected with the secretin receptor.
Species:  Human
Tissue:  CHO cells.
Response measured:  Stimulation of cAMP accumulation.
References:  14
Measurement of the extracellular acidification rate in CHO cells transfected with the human secretin receptor.
Species:  Human
Tissue:  CHO cells.
Response measured:  Increase in ectracellular acidification rate.
References:  14
Measurement of short-circuit current (Isc) caused by chloride and bicarbonate secretion in cultured epididymal epithelia.
Species:  Human
Tissue:  Cultured epididymal epithelia.
Response measured:  Stimulation of Isc.
References:  2
Physiological Functions
Secretin activates GABA release both directly and indirectly via glutamate release.
Species:  Rat
Tissue:  Cerebellum.
References:  12
Phenotypes, Alleles and Disease Models Mouse data from MGI

Click here to show/hide data

Allele Composition & genetic background Accession Phenotype Id Phenotype Reference
Sctrtm1Bkcc Sctrtm1Bkcc/Sctrtm1Bkcc
B6.129S7-Sctr
MGI:2441720  MP:0003009 abnormal cytokine secretion PMID: 17283064 
Sctrtm1Bkcc Sctrtm1Bkcc/Sctrtm1Bkcc
B6.129S7-Sctr
MGI:2441720  MP:0000521 abnormal kidney cortex PMID: 17283064 
Sctrtm1Bkcc Sctrtm1Bkcc/Sctrtm1Bkcc
B6.129S7-Sctr
MGI:2441720  MP:0003014 abnormal kidney medulla morphology PMID: 17283064 
Sctrtm1Bkcc Sctrtm1Bkcc/Sctrtm1Bkcc
B6.129S7-Sctr
MGI:2441720  MP:0009643 abnormal urine homeostasis PMID: 17283064 
Sctrtm1Bkcc Sctrtm1Bkcc/Sctrtm1Bkcc
B6.129S7-Sctr
MGI:2441720  MP:0005618 decreased potassium excretion PMID: 17283064 
Sctrtm1Bkcc Sctrtm1Bkcc/Sctrtm1Bkcc
B6.129S7-Sctr
MGI:2441720  MP:0005570 decreased sodium excretion PMID: 17283064 
Sctrtm1Bkcc Sctrtm1Bkcc/Sctrtm1Bkcc
B6.129S7-Sctr
MGI:2441720  MP:0002988 decreased urine osmolality PMID: 17283064 
Sctrtm1Bkcc Sctrtm1Bkcc/Sctrtm1Bkcc
B6.129S7-Sctr
MGI:2441720  MP:0004860 dilated kidney collecting duct PMID: 17283064 
Sctrtm1Bkcc Sctrtm1Bkcc/Sctrtm1Bkcc
B6.129S7-Sctr
MGI:2441720  MP:0005559 increased circulating glucose level PMID: 17283064 
Sctrtm1Bkcc Sctrtm1Bkcc/Sctrtm1Bkcc
B6.129S7-Sctr
MGI:2441720  MP:0005425 increased macrophage cell number PMID: 17283064 
Sctrtm1Bkcc Sctrtm1Bkcc/Sctrtm1Bkcc
B6.129S7-Sctr
MGI:2441720  MP:0001859 kidney inflammation PMID: 17283064 
Sctrtm1Bkcc Sctrtm1Bkcc/Sctrtm1Bkcc
B6.129S7-Sctr
MGI:2441720  MP:0001426 polydipsia PMID: 17283064 
Sctrtm1Bkcc Sctrtm1Bkcc/Sctrtm1Bkcc
B6.129S7-Sctr
MGI:2441720  MP:0001762 polyuria PMID: 17283064 
General Comments
There appear to be important species differences in the cellular and organ distribution of secretin and secretin family receptors. The best example of this is the confusing series of observations in pancreas of guinea-pig, rat, and human[10,15]. There are also differences in the pharmacologic profile of secretin receptors from different species, despite minimal changes in primary structure. Rat and human secretin receptors have very different binding affinities for VIP that have been attributed to a single receptor residue[8].

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: secretin receptor. Last modified on 08/03/2013. Accessed on 19/05/2013. IUPHAR database (IUPHAR-DB), http://www.iuphar-db.org/DATABASE/ObjectDisplayForward?objectId=252.


Contact us | Print | Back to top | Help