Table 1

Pharmacological profiles of NPY and J-115814 for mouse NPY receptors

Binding affinity (Ki)[Ca2+]i Responses
hY1rY1mY1hY2hY4hY5mY6hY1
nM
(EC50;nM)
NPY0.47  ± 0.040.98  ± 0.160.96  ± 0.210.10  ± 0.02130  ± 371.2  ± 0.333.7  ± 0.880.76  ± 0.33
(IC50;nM)
J-1158141.4  ± 0.161.8  ± 0.181.9  ± 0.22>10000620  ± 506000  ± 460>100006.8  ± 2.1

Y1, Y2, Y5, and Y6 affinities determined using 125I-PYY, Y4 affinity determined using 125I-PP. Data represent the mean of more than three independent determinations performed in duplicate.