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. 2018 Feb 9;9(17):13713–13732. doi: 10.18632/oncotarget.24459

Table 5. Results summary for alanine scanning of interface residues of NKX2.5 of NKX2.5-GATA4 protein complex.

Residues Mutation to Alanine Change in binding affinity (∆∆Gb kcal/mol) Possible Salt-bridges (DrugScorePPI)
BioLuminate BeatMusic DrugScorePPI
Ser13 K → A 3.31 0.92 0.46 -
Val14 V → A 0.08 0.03 0.06 -
Lys15 K → A -3.07 0.92 1.13 -
Asp16 D → A 8.65 0.68 0.8 X
Ile17 I → A -0.03 0.08 - -
Leu18 L → A 0.12 0.16 0.16 -
Asn19 N → A 3.59 1.26 1.37 -
Leu20 L → A 0.63 0.08 0.08 -
Glu21 E → A 2.09 0.04 - -
Gln22 Q → A 2.58 0.43 0.04 -
Gln23 Q → A 2.78 0.28 0.54 -
Gln24 Q → A 1.04 0.3 - -
Arg25 R → A 2.95 0.44 0.34 -
Ser26 S → A -0.01 -0.24 - -
Leu27 L → A 0.02 0.3 - -
Ala28 - - - - -
Ala29 - - - - -
Ala30 - - - - -
Gly31 G → A -1.74 0.45 - -
Glu32 E → A 7.44 0.99 1.2 X
Leu33 L → A 0.02 0.6 0.06 -
Ser34 S → A 0.06 0.05 - -
Ala35 - - - - -
Arg36 R → A -2.26 0.57 0.35 -
Leu37 L → A -0.08 0.2 - -
Glu38 E → A 1.02 -0.09 - -

The key residues are highlighted. ∆∆Gb value higher than zero means decrease in binding affinity and value less than zero means increase in binding affinity.