Table 1

IC₅₀ values (nM) for peptides in competition for¹²⁵I-labeled rat amylin binding to COS-7 cells cotransfected with 100 ng of hCTR_I1− and 100 ng of RAMP (n = 3)

	RAMP 1	RAMP 3	α-TSH Cells^1-150
Competing peptide
Rat amylin	7.86 ± 4.49	6.35 ± 1.70	10.5 ± 0.32
Salmon CT	0.309 ± 0.144	0.206 ± 0.004	0.37 ± 0.10
Human CT	447 ± 78	862 ± 619	N.D.
Human CGRPα	4.68 ± 3.04	151 ± 48^1-160	5.95 ± 1.70

↵1-150 From Perry et al., 1997.
↵1-160 P < .05 RAMP 1 versus RAMP 3 (n = 3).