Table 2.
Computational alanine scanning for PARP-1 and PARP-2 with the MM/GBSA_IE method.
| PARP-1 | |||||||
|---|---|---|---|---|---|---|---|
| Mutation | ΔΔEvdw | ΔΔEele | ΔΔGgb | ΔΔGnp | ΔΔH | −TΔΔS | ΔΔG |
| Y907A | 6.41 ± 0.15 | −0.09 ± 0.19 | −0.25 ± 0.24 | 0.27 ± 0.04 | 6.33 ± 0.15 | −0.73 ± 0.13 | 5.60 ± 0.26 |
| Y889A | 4.05 ± 0.14 | 0.09 ± 0.30 | −0.04 ± 0.26 | 0.24 ± 0.02 | 4.35 ± 0.18 | −0.66 ± 0.23 | 3.69 ± 0.24 |
| Y896A | 3.33 ± 0.09 | 0.90 ± 0.05 | −0.86 ± 0.04 | 0.13 ± 0.01 | 3.51 ± 0.09 | −0.41 ± 0.05 | 3.10 ± 0.13 |
| H862A | 1.53 ± 0.16 | −0.44 ± 0.12 | 0.67 ± 0.12 | 0.06 ± 0.00 | 1.81 ± 0.16 | −0.17 ± 0.04 | 1.64 ± 0.19 |
| E988A | 1.04 ± 0.13 | 4.94 ± 0.11 | −4.43 ± 0.10 | 0.09 ± 0.02 | 1.65 ± 0.14 | −0.28 ± 0.11 | 1.37 ± 0.25 |
| E763A | 1.20 ± 0.21 | 4.90 ± 0.28 | −4.43 ± 0.27 | 0.16 ± 0.04 | 1.83 ± 0.25 | −0.87 ± 0.29 | 0.96 ± 0.23 |
| K903A | 1.38 ± 0.21 | −3.59 ± 0.23 | 3.15 ± 0.20 | 0.07 ± 0.02 | 1.00 ± 0.17 | −0.13 ± 0.05 | 0.87 ± 0.16 |
| D766A | 0.19 ± 0.08 | 4.00 ± 0.21 | −3.54 ± 0.20 | 0.01 ± 0.01 | 0.67 ± 0.10 | −0.15 ± 0.08 | 0.52 ± 0.03 |
| V762A | 0.56 ± 0.03 | −0.19 ± 0.02 | 0.19 ± 0.02 | 0.03 ± 0.01 | 0.60 ± 0.03 | −0.11 ± 0.03 | 0.49 ± 0.05 |
| Q759A | 0.84 ± 0.05 | 0.35 ± 0.26 | −0.41 ± 0.23 | 0.05 ± 0.02 | 0.83 ± 0.04 | −0.39 ± 0.31 | 0.44 ± 0.30 |
| F897A | 0.23 ± 0.01 | 0.24 ± 0.02 | −0.18 ± 0.03 | 0.00 ± 0.00 | 0.30 ± 0.02 | −0.02 ± 0.01 | 0.28 ± 0.02 |
| S904A | −0.55 ± 0.29 | 1.87 ± 0.29 | −0.58 ± 0.14 | 0.00 ± 0.00 | 0.74 ± 0.13 | −0.46 ± 0.14 | 0.28 ± 0.21 |
| W861A | 0.06 ± 0.00 | −0.01 ± 0.02 | 0.12 ± 0.01 | 0.00 ± 0.00 | 0.17 ± 0.01 | 0.00 ± 0.00 | 0.17 ± 0.01 |
| T887A | 0.16 ± 0.06 | 0.12 ± 0.15 | −0.09 ± 0.13 | 0.01 ± 0.00 | 0.20 ± 0.09 | −0.03 ± 0.04 | 0.17 ± 0.10 |
| Y989A | 0.07 ± 0.01 | −0.02 ± 0.01 | 0.05 ± 0.01 | 0.00 ± 0.00 | 0.10 ± 0.01 | 0.00 ± 0.00 | 0.10 ± 0.01 |
| P885A | 0.04 ± 0.02 | 0.09 ± 0.02 | −0.08 ± 0.02 | 0.00 ± 0.00 | 0.05 ± 0.02 | −0.01 ± 0.01 | 0.04 ± 0.02 |
| N987A | 0.01 ± 0.00 | 0.02 ± 0.02 | −0.02 ± 0.02 | 0.00 ± 0.00 | 0.01 ± 0.00 | 0.00 ± 0.00 | 0.01 ± 0.00 |
| S864A | 0.03 ± 0.01 | −0.05 ± 0.12 | 0.03 ± 0.12 | 0.00 ± 0.00 | 0.02 ± 0.01 | −0.02 ± 0.02 | 0.00 ± 0.02 |
| PARP-2 | |||||||
| Mutation | ΔΔEvdw | ΔΔEele | ΔΔGgb | ΔΔGnp | ΔΔH | −TΔΔS | ΔΔG |
| Y473A | 6.34 ± 0.13 | 0.18 ± 0.10 | −0.55 ± 0.11 | 0.34 ± 0.01 | 6.31 ± 0.12 | −0.91 ± 0.08 | 5.40 ± 0.16 |
| Y455A | 3.35 ± 0.70 | 0.32 ± 0.25 | −0.18 ± 0.24 | 0.19 ± 0.08 | 3.67 ± 0.76 | −0.53 ± 0.19 | 3.14 ± 0.58 |
| Y462A | 3.40 ± 0.39 | 0.92 ± 0.08 | −0.94 ± 0.07 | 0.16 ± 0.05 | 3.54 ± 0.40 | −0.43 ± 0.09 | 3.11 ± 0.42 |
| E558A | 1.08 ± 0.08 | 4.99 ± 0.11 | −4.46 ± 0.11 | 0.11 ± 0.02 | 1.71 ± 0.09 | −0.27 ± 0.07 | 1.44 ± 0.14 |
| H428A | 1.32 ± 0.21 | −0.10 ± 0.31 | 0.29 ± 0.31 | 0.06 ± 0.01 | 1.57 ± 0.25 | −0.18 ± 0.05 | 1.39 ± 0.28 |
| K469A | 1.10 ± 0.08 | −3.41 ± 0.07 | 3.00 ± 0.07 | 0.09 ± 0.01 | 0.77 ± 0.08 | −0.07 ± 0.02 | 0.69 ± 0.08 |
| I331A | 0.81 ± 0.08 | −0.31 ± 0.12 | 0.31 ± 0.04 | 0.08 ± 0.05 | 0.88 ± 0.12 | −0.38 ± 0.07 | 0.51 ± 0.17 |
| L327A | 0.41 ± 0.30 | −0.02 ± 0.07 | 0.06 ± 0.07 | 0.04 ± 0.03 | 0.49 ± 0.31 | −0.06 ± 0.05 | 0.43 ± 0.29 |
| P451A | 0.24 ± 0.15 | 0.03 ± 0.02 | −0.01 ± 0.03 | 0.02 ± 0.02 | 0.28 ± 0.17 | −0.04 ± 0.03 | 0.24 ± 0.15 |
| F463A | 0.22 ± 0.02 | 0.25 ± 0.03 | −0.22 ± 0.04 | 0.00 ± 0.00 | 0.25 ± 0.04 | −0.03 ± 0.01 | 0.23 ± 0.05 |
| W427A | 0.06 ± 0.00 | −0.01 ± 0.02 | 0.12 ± 0.02 | 0.00 ± 0.00 | 0.17 ± 0.01 | 0.00 ± 0.00 | 0.17 ± 0.01 |
| S470A | −0.60 ± 0.26 | 1.83 ± 0.29 | −0.61 ± 0.11 | 0.00 ± 0.00 | 0.63 ± 0.10 | −0.47 ± 0.08 | 0.16 ± 0.14 |
| S328A | 0.38 ± 0.15 | 0.65 ± 0.50 | −0.73 ± 0.51 | 0.05 ± 0.04 | 0.35 ± 0.16 | −0.26 ± 0.29 | 0.09 ± 0.17 |
| Y559A | 0.06 ± 0.01 | −0.03 ± 0.01 | 0.06 ± 0.01 | 0.00 ± 0.00 | 0.09 ± 0.01 | 0.00 ± 0.00 | 0.09 ± 0.01 |
| N557A | 0.01 ± 0.00 | 0.04 ± 0.01 | −0.04 ± 0.01 | 0.00 ± 0.00 | 0.01 ± 0.00 | 0.00 ± 0.00 | 0.01 ± 0.00 |
| Q332A | 0.69 ± 0.56 | −0.39 ± 1.11 | 0.26 ± 1.15 | 0.07 ± 0.08 | 0.64 ± 0.57 | −0.63 ± 0.73 | 0.01 ± 0.29 |
| S430A | 0.03 ± 0.01 | −0.02 ± 0.07 | 0.01 ± 0.07 | 0.00 ± 0.00 | 0.02 ± 0.01 | −0.02 ± 0.00 | 0.00 ± 0.01 |
All energy values are given in kcal/mol. ΔΔEvdw, ΔΔEele, ΔΔGgb, and ΔΔGnp represent the difference of van der waals interaction, electrostatic interaction, generalize-born and nonpolar solvation free energy between WT and the mutant.