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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