To improve security and privacy, we are moving our web pages and services from HTTP to HTTPS.
To give users of web services time to transition to HTTPS, we will support separate HTTP and HTTPS services until the end of 2017.
From January 2018 most HTTP traffic will be automatically redirected to HTTPS. [more...]
View this page in https

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