Table 3.
compound | caprotein | caligand | Nb | ΔGc | ΔHd | TΔSe | KDf | (KD)g |
---|---|---|---|---|---|---|---|---|
psHA dp4h | 15 | 60 | 0.505 | −36.8 | −17.3 | +19.5 | 357 ± 21 | 378 ± 21 |
0.481 | −36.5 | −17.1 | +19.4 | 398 ± 10 | ||||
psHA dp4i | 15 | 60 | 0.523 | −36.4 | −3.7 | +32.7 | 431 ± 245 | 364 ± 48 |
0.557 | −37.0 | −7.2 | +29.7 | 341 ± 73 | ||||
0.429 | −37.1 | −4.6 | +32.5 | 320 ± 200 | ||||
psHA dp6i | 15 | 50 | 0.628 | −39.0 | −4.8 | +34.2 | 149 ± 80 | 124 ± 29 |
0.409 | −40.5 | −5.7 | +34.8 | 83 ± 30 | ||||
0.599 | −39.2 | −5.0 | +34.2 | 140 ± 65 |
aConcentration in µM, bmolar binding ratio of the ligand-protein interaction (stoichiometry), cbinding free energy in kJ∙mol−1, dbinding enthalpy in kJ∙mol−1, dentropic contribution term in kJ∙mol−1, fdissociation constant in nM, gmean of the calculated KD values, hITC measurements were performed in 8 mM phosphate buffer with 2 mM NaCl, iITC measurement were performed in 10 mM PBS buffer with 140 mM NaCl.