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Table 3 Energies (au), binding energy (kcal/mol) of complexes 1 and 2

From: The Role of Salt Bridge Formation in Glucagon: An Experimental and Theoretical Study of Glucagon Analogs and Peptide Fragments of Glucagon

Complex

 

Aspartic-Lysine complex (1a)

−853.69864

Aspartate ion-lysine ion (1b)

−853.68014

Glutamic-lysine complex (2a)

−892.73339

Glutamate ion-lysine ion (2b)

−892.70054

Complex

Binding energy

Binding energy + Solvation energy

1a

−13.6

−25.4

1b: vs. ions

−121.2

−7.0

1b: vs. neutral species

−2.0

−13.7

2a

−12.9

−24.4

2b: vs. ions

−119.9

−4.6

2b: vs. neutral species

−4.0

−13.4