Table 4. Comparison of Kd (determined by ITC, FTSA) and IC50 (determined by SFA) of the compound 1b binding to five isoforms of human recombinant CAs.
Kd, nM (ITC) | Kd, nM (TSA) | IC50, nM (SFA) | |
CAI | 2300 | 3100 | 5550 |
CAII | 430 | 330 | 220 |
CAVII | 660 | 710 | 830 |
CAXII | 370 | 1300 | 1100 |
CAXIII | 270 | 330 | 450 |
All three methods provided the same values within the error margin.