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 (free energy of transfer to surface in kcal/mole).

Author(s): Bull H.B., Breese K.

Reference: Arch. Biochem. Biophys. 161:665-670(1974).

Amino acid scale values:

Ala:  0.610  

Arg:  0.690  

Asn:  0.890  

Asp:  0.610  

Cys:  0.360  

Gln:  0.970  

Glu:  0.510  

Gly:  0.810  

His:  0.690  

Ile: -1.450  

Leu: -1.650  

Lys:  0.460  

Met: -0.660  

Phe: -1.520  

Pro: -0.170  

Ser:  0.420  

Thr:  0.290  

Trp: -1.200  

Tyr: -1.430  

Val: -0.750