Table 1

Binding characteristics of HAhIP-GFP mutant receptors

HAhIP-GFP (n = 4)N7-Q7 (n = 4)N78-Q78 (n = 3)N7,N78-Q7,Q78
B max (fmol/mg of protein)3.34  ± 0.520.35  ± 0.031-150 0.27  ± 0.031-150 N.D.
K d (nM)24.3  ± 3.621.7  ± 1.7149.1  ± 11.11-150 N.D.

Saturation binding of [3H]iloprost was carried out using membranes prepared from each cell line. Data are the mean ± SEM from three to four experiments.

  • 1-150p < 0.05 compared with HAhIP-GFP.

  • N.D., not detectable.