Hydrophobicity
Hydrophobicity for a drug describes its affinity for a non-aqueous environment as opposed to an aqueous environment. The hydrophobicity of a molecule is generated by the disruption of highly dynamic hydrogen bonds between the water molecules. Hence, hydrophobic molecules cannot accept or donate hydrogen bonds with water.2
The hydrophobicity of a protein is measured by residue hydrophobicity scales, also named Wimbley-White scales, in which each amino acid is given a specific absolute value based on peptide bonds and side chains; and each polypeptide is given a value for the transfer of free energies.1
The hydrophobicity of a protein is measured by residue hydrophobicity scales, also named Wimbley-White scales, in which each amino acid is given a specific absolute value based on peptide bonds and side chains; and each polypeptide is given a value for the transfer of free energies.1
References:
- Wimley WC, White SH: Experimentally determined hydrophobicity scale for proteins at membrane interfaces. Nat Struct Biol. 1996 Oct;3(10):842-8. [Article]
- Kaliszan R. (2015). Reference module in chemistry, molecular sciences and chemical engineering. Elsevier.
![](https://dev.drugbank.com/rails/active_storage/representations/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBGQT09IiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--d340925482956c4e6a16c6c193226975caf181eb/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaDdCem9MWm05eWJXRjBTU0lJYW5CbkJqb0dSVlE2QzNKbGMybDZaVWtpQ25nME56ZytCanNHVkE9PSIsImV4cCI6bnVsbCwicHVyIjoidmFyaWF0aW9uIn19--cee43b41e0ba7b27417cc5f7c31bb48545dde7d1/api_card.jpg)