Describir: Protein quadratic indices of the "macromolecular pseudograph's α-carbon atom adjacency matrix" : 1. Prediction of arc repressor alanine-mutant's stability

 _    _      ___     ______    __   __  __    __   __   __    ____    
| \  / ||   / _ \\  |      \\  \ \\/ // \ \\ / //  \ \\/ //  |  _ \\  
|  \/  ||  / //\ \\ |  --  //   \ ` //   \ \/ //    \ ` //   | |_| || 
| .  . || |  ___  |||  --  \\    | ||     \  //      | ||    | .  //  
|_|\/|_|| |_||  |_|||______//    |_||      \//       |_||    |_|\_\\  
`-`  `-`  `-`   `-` `------`     `-`'       `        `-`'    `-` --`  
                                                                      
  _____   
 |  ___|| 
 | ||__   
 | ||__   
 |_____|| 
 `-----`