TABLE 2

Receptor Binding Affinity Measurements on Selected Peptides Using 125I-G17 as Radioligand

PeptideEC50/Ki (nM)
DOTA-CCK83.1/2.1
DOTA-H6-Met3.1/2.1
DOTA-H2-Met5.7/3.9
DOTA-H2-Met(O)1,300.0/900.0
DOTA-H6-Nle5.7/3.8
DOTA-H2-Nle16.7/11.3
MG02.5/1.7
MG113.4/2.4