Nomenclature	CT receptor	AMY1 receptor	AMY2 receptor	AMY3 receptor
HGNC, UniProt	CALCR, P30988	–	–	–
Subunits	–	RAMP1 (Accessory protein), CT receptor	RAMP2 (Accessory protein), CT receptor	RAMP3 (Accessory protein), CT receptor
Principal transduction	Gs	Gs	Gs	Gs
Rank order of potency	CT (salmon) ≥ CT ≥ AMY, α-CGRP > AM, AM2/IMD	CT (salmon) ≥ AMY ≥ α-CGRP > AM2/IMD ≥ CT > AM	Poorly defined	CT (salmon) ≥ AMY > α-CGRP ≥ AM2/IMD ≥ CT > AM
Endogenous agonists (pKi)	CT (Selective) (pEC50 9.0 – 11.2) 486,487,492,498,499,503	AMY	AMY	AMY
Radioligands (Kd)	[125I]CT (salmon) (Agonist, Full agonist) (1x10−10 M), [125I]CT (human) (Agonist, Full agonist) (1x10−10 – 1x10−9 M)	[125I]BH-AMY (rat, mouse) (Agonist, Full agonist) (1x10−10 – 1x10−9 M)	[125I]BH-AMY (rat, mouse) (Agonist, Full agonist) (1x10−10 – 1x10−9 M)	[125I]BH-AMY (rat, mouse) (Agonist, Full agonist) (1x10−10 – 1x10−9 M)