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Somatostatin receptors are receptors for theligand somatostatin, a smallneuropeptide associated with neural signaling, particularly in thepost-synaptic response toNMDA receptor co-stimulation/activation. Somatostatin is encoded by a CRE and is very susceptible to genepromoter region activation bytranscription factor CREB.^[1]

There are five known somatostatin receptors:^[2]

All areG protein-coupled seven transmembrane receptors.

References

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^Lou L (2016).Principles of Neurobiology. New York, NY: Garland Science, Taylor and Francis Group. pp. 109–110.ISBN 978-0-8153-4494-0.
^Hoyer D, Bell GI, Berelowitz M, Epelbaum J, Feniuk W, Humphrey PP, O'Carroll AM, Patel YC, Schonbrunn A, Taylor JE (1995)."Classification and nomenclature of somatostatin receptors".Trends Pharmacol. Sci.16 (3):86–8.doi:10.1016/S0165-6147(00)88988-9.PMID 7792934.

External links

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Somatostatin+Receptor at the U.S. National Library of MedicineMedical Subject Headings (MeSH)

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 but5-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)
Chemerin
- 1
- 2
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 notSigma)
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 (3 4 6 12 15 17 18 19 20 21 22 26 27 31 32 33 34 35 37 39 42 45 50 52 55 61 62 63 65 68 75 78 82 83 84 85 87 88 101 103 109A 119 132 135 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)

Class F:Frizzled &Smoothened

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

Neuropeptide receptors

G protein-coupled receptor

Hormone receptors

Hypothalamic	CRH FSH LHRH TRH Somatostatin
Pituitary	Vasopressin 1A 1B 2 Oxytocin LHCG TSH
Other	Atrial natriuretic factor NPR3 Calcitonin Cholecystokinin A B VIP

Opioid receptors

Other neuropeptide receptors

Type I cytokine receptor

Enzyme-linked receptor

Atrial natriuretic factor
- NPR1
- NPR2

Other

Sigma
- 1
- 2

v t e GH/IGF-1 axis signaling modulators
GH (somatotropin)	Agonists:Albusomatropin Bovine somatotropin Efpegsomatropin Eftansomatropin alfa Growth hormone Human placental lactogen Lonapegsomatropin Placental growth hormone (growth hormone variant) Somagrebove Somapacitan Somatosalm Somatotropin Somatropin pegol Somatrem Sometribove Somatrogon (MOD-4023; hGH-CTP) Somavaratan Somavubove Somidobove Antagonists:G120K-hGH Pegvisomant Antisense oligonucleotides:Atesidorsen Binding proteins:GHBPTooltip Growth hormone-binding protein
GHIH (somatostatin)	Agonists:BIM-23052 CH-275 Cortistatin-14 Depreotide Edotreotide Ilatreotide L-803,087 L-817,818 Lanreotide NNC 26-9100 Octreotate Octreotide Pasireotide Pentetreotide RC-160 Seglitide Somatostatin (GHIH) Somatostatin (1-28) SRIF-14 SRIF-28 TT-232 Vapreotide Veldoreotide Antagonists:BIM-23056 Cyclosomatostatin CYN-154806 Satoreotide
GHRH (somatocrinin)	Agonists:Peptide:ALRN-5281 CJC-1295 Dumorelin GHRH Modified GRF (1-29) Rismorelin Sermorelin Somatorelin Tesamorelin Antagonists:MZ-5-156
GHS (ghrelin)	Agonists:Peptide:Alexamorelin Cortistatin-14 EP-51216 Examorelin (hexarelin) Ghrelin GHRP-1 GHRP-3 GHRP-4 GHRP-5 GHRP-6 Ipamorelin Lenomorelin Livoletide LY-444711 Pralmorelin (GHRP-2) Relamorelin Tabimorelin Ulimorelin;Non-peptide:Adenosine Anamorelin Capromorelin CP-464709 Ibutamoren (MK-677) L-692,585 Macimorelin SM-130686;Unsorted:LY-426410 LY-444711 Antagonists:A-778193 Cortistatin-8 (D-Lys³)-GHRP-6 JMV2959 YIL-781
IGF-1 (somatomedin)	Seehere instead.

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