ProtScale Tool

Amino acid scale: Hydrophobicity indices at ph 7.5 determined by HPLC.

Author(s): Cowan R., Whittaker R.G.

Reference: Peptide Research 3:75-80(1990).

Amino acid scale values:


Ala:  0.350  

Arg: -1.500  

Asn: -0.990  

Asp: -2.150  

Cys:  0.760  

Gln: -0.930  

Glu: -1.950  

Gly:  0.000  

His: -0.650  

Ile:  1.830  

Leu:  1.800  

Lys: -1.540  

Met:  1.100  

Phe:  1.690  

Pro:  0.840  

Ser: -0.630  

Thr: -0.270  

Trp:  1.350  

Tyr:  0.390  

Val:  1.320