ghrelin   Click here for help

GtoPdb Ligand ID: 1099

Comment: There is some ambiguity in the literature and on other resources as to the exact chemical structure and stereochemistry of ghrelin. In the absence of a consensus chemical structure, we have chosen not to include an image of the molecule on this ligand entry. However, for representations of the structure please see these CHEBI:75431, CHEMBL425281 and PubChem CID 16133832 entries.
Species: Human
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Natural/Endogenous Targets
Target
ghrelin receptor
Selectivity at GPCRs
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
ghrelin receptor Ligand is endogenous in the given species Hs Agonist Full agonist 8.6 – 9.4 pKd - 3-4
pKd 8.6 – 9.4 (Kd 2.3x10-9 – 3.6x10-10 M) [3-4]
ghrelin receptor Ligand is endogenous in the given species Hs Agonist Full agonist 7.8 – 8.1 pKi - 6
pKi 7.8 – 8.1 [6]
ghrelin receptor Ligand is endogenous in the given species Hs Agonist Full agonist 7.2 – 9.5 pEC50 - 2-4,7-8
pEC50 9.5 (EC50 3.4x10-10 M) IP3 accumulation [4,8]
pEC50 8.1 (EC50 7.1x10-9 M) [2]
Description: Measuring ghrelin-induced GHSR activation detected by β-arrestin recruitment in cells stably expressing hGHSR.
pEC50 7.2 – 7.5 (EC50 6.1x10-8 – 3.2x10-8 M) calcium release [3,7]
Additional information and targets (data relate to human unless otherwise stated)
Description Data Reference
Ligand mentioned in the following text fields