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ProtScale Tool

Amino acid scale: Hydrophilicity scale derived from HPLC peptide retention times.

Author(s): Parker J.M.R., Guo D., Hodges R.S.

Reference: Biochemistry 25:5425-5431(1986).

Amino acid scale values:


Ala:  2.100  

Arg:  4.200  

Asn:  7.000  

Asp: 10.000  

Cys:  1.400  

Gln:  6.000  

Glu:  7.800  

Gly:  5.700  

His:  2.100  

Ile: -8.000  

Leu: -9.200  

Lys:  5.700  

Met: -4.200  

Phe: -9.200  

Pro:  2.100  

Ser:  6.500  

Thr:  5.200  

Trp: -10.000  

Tyr: -1.900  

Val: -3.700