Table 2. Example of a pipetting scheme for the competition of cNMP with the complex formed between 0.3 μM f-cAMP and 0.3 μM SthK.
Stock solution | Volume of stock solution to be added (μl) | Final volume in cuvette (μl) | [cNMP] (μM) in cuvette |
200 μl volume 0.3 μM f-cAMP 0.3 μM SthK 30 mM cNMP |
0 | 2,000 | 0.00 |
1 | 2,001 | 14.99 | |
1 | 2,002 | 29.97 | |
1 | 2,003 | 44.93 | |
2 | 2,005 | 74.81 | |
2 | 2,007 | 104.63 | |
3 | 2,010 | 149.25 | |
5 | 2,015 | 223.33 | |
5 | 2,020 | 297.03 | |
10 | 2,030 | 443.35 | |
10 | 2,040 | 588.24 | |
20 | 2,060 | 873.79 | |
20 | 2,080 | 1,153.85 | |
20 | 2,100 | 1,428.57 | |
20 | 2,120 | 1,698.11 | |
20 | 2,140 | 1,962.62 | |
20 | 2,160 | 2,222.22 |