TABLE 1

Inositol phosphate production by different receptor combinations Inositol phosphate accumulations were determined as described under experimental procedures on transiently transfected COS-7 cells. Results are expressed as a ratio of IPs produced by indicated receptor combinations over IPs produced by the WT receptor stimulated with LTD4 (5 × 10-7 M). The results are the means ± S.E. of three independent determinations.




IP Ratio
WT + LTD4 5 × 10-7 M 1.00 ± 0.00
WT + Gaq 1.20 ± 0.05
N106A 1.30 ± 0.11
I232R
3.20 ± 0.18