Selective inhibition of expression of AC and IP3R isoforms
| siRNA . | AC3 . | AC6 . | IP3R1 . | IP3R2 . | IP3R3 . |
|---|---|---|---|---|---|
| AC3 | 40 ± 2a | 123 ± 35 | 103 ± 9 | 93 ± 14 | 87 ± 7 |
| AC6 | 101 ± 27 | 38 ± 8a | 91 ± 6 | 101 ± 12 | 92 ± 10 |
| IP3R1 | ND | ND | 36 ± 6a | 103 ± 9 | 138 ± 7 |
| IP3R2 | ND | ND | 96 ± 18 | ≤5a | 77 ± 6 |
| siRNA . | AC3 . | AC6 . | IP3R1 . | IP3R2 . | IP3R3 . |
|---|---|---|---|---|---|
| AC3 | 40 ± 2a | 123 ± 35 | 103 ± 9 | 93 ± 14 | 87 ± 7 |
| AC6 | 101 ± 27 | 38 ± 8a | 91 ± 6 | 101 ± 12 | 92 ± 10 |
| IP3R1 | ND | ND | 36 ± 6a | 103 ± 9 | 138 ± 7 |
| IP3R2 | ND | ND | 96 ± 18 | ≤5a | 77 ± 6 |
Quantification of levels of expression (percentage of control, means ± SEM from three to five independent transfections) of the isoforms of AC and IP3R from HEK-PR1 cells treated with the indicated siRNA. Samples were taken from the same cells that were used for measurements of [Ca2+]i and cAMP (Fig. 9). WB was used to quantify IP3R expression and QPCR for AC (available antibodies are incapable of detecting endogenous levels of AC). ND, not determined.
Indicates the extent to which expression of the target protein was reduced.