Table 1.
Thermodynamic parameters of the interactions between CXCL12 and Ac-pep, frHMGB1 and frHMGB1-TL
ITCa | MST | |||||
---|---|---|---|---|---|---|
Kd1 (μM) | Kd2 (μM) | ∆H1 (kcal/mol) | ∆H2 (kcal/mol) | Kd[NaCl]=20mM (μM) | Kd[NaCl]=150mM (μM) | |
Ac-pep | 0.6 ± 0.1 | 0.1 ± 0.1 | −10.4 ± 0.8 | 1.6 ± 0.7 | 0.6 ± 0.1b | 5.0 ± 0.6b |
frHMGB1 | 1.2 ± 0.4 | 7.8 × 10−3 ± 1.5 × 10−2 | −1.4 ± 0.1 | −2.1 ± 0.2 | 1.7 ± 0.2c | 31.8 ± 1.4c |
frHMGB1-TL | n.d. | n.d. | n.d. | n.d. | 12.5 ± 5.5c | 81.4 ± 6.8c |
aCXCL12 is the titrant, n = 2 independent replicates, error estimates from covariance matrix.
bCXCL12 is the titrant, n = 3 independent replicates, values are mean ± standard deviation.
cfrHMGB1 or frHMGB1-TL is the titrant, n = 3 independent replicates, values are mean ± standard deviation.
n.d. not detected.