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Table 1 The physicochemical features of amino acids.

From: Structural neighboring property for identifying protein-protein binding sites

Amino Acid Hydrophobicity Electrostatic potential Hydrogen bonds
Ala 1.8 0 2
Arg -4.5 1 4
Asn -3.5 0 4
Asp -3.5 -1 4
Cys 2.5 0 2
Gln -3.5 0 4
Glu -3.5 -1 4
Gly -0.4 0 2
His -3.2 0 4
Ile 4.5 0 2
Leu 3.8 0 2
Lys -3.9 1 2
Met 1.9 0 2
Phe 2.8 0 2
Pro -1.6 0 2
Ser -0.8 0 4
Thr -0.7 0 4
Trp 0.9 0 3
Tyr -1.3 0 3
Val 4.2 0 2