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ProtScale Tool

Amino acid scale: Hydrophobicity indices at ph 3.4 determined by HPLC.

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

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

Amino acid scale values:

Ala:  0.420  

Arg: -1.560  

Asn: -1.030  

Asp: -0.510  

Cys:  0.840  

Gln: -0.960  

Glu: -0.370  

Gly:  0.000  

His: -2.280  

Ile:  1.810  

Leu:  1.800  

Lys: -2.030  

Met:  1.180  

Phe:  1.740  

Pro:  0.860  

Ser: -0.640  

Thr: -0.260  

Trp:  1.460  

Tyr:  0.510  

Val:  1.340