Nomenclature	GHRH receptor	GIP receptor	GLP‐1 receptor
HGNC, UniProt	GHRHR, Q02643	GIPR, P48546	GLP1R, P43220
Endogenous agonists	–	gastric inhibitory polypeptide (GIP, P09681) [2042]	glucagon‐like peptide 1‐(7‐36) amide (GCG, P01275) [927], glucagon‐like peptide 1‐(7‐37) (GCG, P01275) [449]
Agonists	JI‐38 [265], sermorelin	–	liraglutide [1020], lixisenatide [2097], WB4‐24 [528]
Selective agonists	BIM28011 [393], tesamorelin	–	exendin‐4 [1346], exendin‐4 [927], exendin‐3 (P20394) [1635]
Selective antagonists	JV‐1‐36 (pK i 10.1–10.4) [1733, 2026, 2027] – Rat, JV‐1‐38 (pK i 10.1) [1733, 2026, 2027] – Rat	[Pro 3]GIP [615] – Mouse	exendin‐(9‐39) (pK i 8.1) [927], GLP‐1‐(9‐36) (pIC50 6.9) [1368] – Rat, T‐0632 (pIC50 4.7) [1961]
Labelled ligands	[125 I]GHRH (human) (Agonist) [196] – Rat	[125 I]GIP (human) (Agonist) [593] – Rat	[125 I]GLP‐1‐(7‐36)‐amide (Agonist) [927], [125 I]exendin‐(9‐39) (Antagonist) (pK d 8.3) [927], [125 I]GLP‐1‐(7‐37) (human) (Agonist)