Table 1 ITC-derived thermodynamic parameters of the binding of TALE to DNA.

From: Non-RVD mutations that enhance the dynamics of the TAL repeat array along the superhelical axis improve TALEN genome editing efficacy

DNAa

Temp. (°C)

TALE

Thermodynamic parametersb

Sites (n)

ΔG (kcal/mol)

ΔH (kcal/mol)

−TΔS (kcal/mol)

KD (nM)

EBEf

15

CT-TALE

0.94 ± 0.05

−9.02 ± 0.17

−5.42 ± 0.26

−3.60 ± 0.31

138.89 ± 40.81

VT-TALE

0.88 ± 0.05

−9.06 ± 0.07

−6.05 ± 0.21

−3.02 ± 0.22

131.33 ± 16.20

25

CT-TALE

0.99 ± 0.01

−8.80 ± 0.15

−13.01 ± 0.92

4.22 ± 0.93

345.98 ± 80.94

VT-TALE

0.93 ± 0.02

−8.84 ± 0.06

−15.23 ± 0.71

6.39 ± 0.71

325.73 ± 34.33

EBEn

15

CT-TALE

1.03 ± 0.03

−9.17 ± 0.09

−5.47 ± 0.38

−3.70 ± 0.39

108.90 ± 16.52

VT-TALE

0.99 ± 0.04

−9.11 ± 0.21

−5.54 ± 0.42

−3.57 ± 0.47

117.03 ± 46.07

25

CT-TALE

1.13 ± 0.03

−8.87 ± 0.17

−11.87 ± 0.49

3.00 ± 0.52

305.31 ± 88.05

VT-TALE

1.12 ± 0.02

−8.97 ± 0.07

−12.66 ± 0.33

3.69 ± 0.34

261.85 ± 31.04

  1. aEBE represents ‘effector binding element’. EBEf contains the full recognition sequence, whereas EBEn has the sequence recognised by the N-terminal eight TAL-repeats. The other types of DNA used in this work (Fig. 4a) did not give any thermograph responses; thus, they are not listed in this table.
  2. bEach measurement was repeated thrice.