Table 3 Thermodynamics of interaction between wild type CohScaB5 and wild-type and mutant variants of ScaDocA.

From: Higher order scaffoldin assembly in Ruminococcus flavefaciens cellulosome is coordinated by a discrete cohesin-dockerin interaction

Dockerin

K a M −1

Δ G o kcal mol −1

Δ H kcal mol −1

TΔSo kcal mol−1

N

DocScaA WT

4.02E8 ± 1.69E8

−12.14

−66.66 ± 0.585

54.51

1.01

DocScaA N661A

2.64E6 ± 4.49E5

−9.15

−82.45 ± 2.800

73.30

0.98

DocScaA V662A

4.78E8 ± 5.03E7

−12.32

−68.38 ± 0.110

56.05

1.02

DocScaA V666A

4.07E8 ± 1.86E8

−12.20

−56.56 ± 0.391

44.35

1.02

DocScaA N669A

3.16E8 ± 6.59E7

−12.12

−73.42 ± 0.322

61.29

1.01

DocScaA K670A

3.67E8 ± 4.33E7

−12.25

−75.09 ± 0.184

62.83

1.02

DocScaA V721A

5.10E8 ± 1.54E8

−12.35

−48.70 ± 0.199

36.34

0.95

DocScaA H722A

2.73E8 ± 7.38E7

−12.07

−72.44 ± 0.443

60.36

1.00

DocScaA N661 + N669

Nb

Nb

Nb

Nb

Nb

DocScaA V662 + V666

1.98E7 ± 1.44E6

−10.19

−67.48 ± 0.281

57.29

0.98

DocScaA V662 + V721

6.24E7 ± 9.36E6

−11.05

−64.33 ± 0.455

53.28

1.08

DocScaA V666 + V721

2.25E7 ± 1.58E6

−10.33

−56.53 ± 0.238

46.20

1.01

DocScaA V662 + V666 + V721

2.91E5 ± 3.79E4

−7.83

−64.81 ± 3.59

56.98

1.04

  1. All thermodynamic parameters were determined at 308 K.
  2. Nb, no binding.