cGMP_in pmol/10⁷cells

cGMP_ex/in

SNP (µM)

0

3.4 ± 0.3

2.3 ± 0.2

1

4.0 ± 0.5

2.5 ± 0.5

10

3.6 ± 0.7

4.4 ± 0.7

100

5.1 ± 0.8

7.9 ± 2.2