“…To do that, we had earlier developed a simple and efficient method to predict stability constants using regression models based on graph theory (14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25). We had also applied graph theory models on oligopeptides (n=2-5), namely on their Cu(II) and Ni(II) complexes with copolymers of glycine, aliphatic (Ala, Val, Leu, norVal, norLeu), and aromatic (Phe, Tyr) amino acid (26,27), as well as Cu(II) complexes with peptides containing a cysteinic disulphide bridge (28).…”