Hydropathy index
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The hydropathy index of a protein is a number representing its hydrophilic or hydrophobic properties. The larger the number is the more hydrophobic is the amino acid. The most hydrophobic amino acids are isoleucine (4.5) and valine (4.2). The most hydrophilic ones are arginine (-4.5) and lysine (-3.9).
[edit] References
- Kyte, J.; Doolittle, R. F. (1982). "A simple method for displaying the hydropathic character of a protein". J. Mol. Biol. 157 (1): 105-132. PMID 7108955.