Article
Polar mutations in membrane proteins as a biophysical basis for disease.
Biopolymers - 1 Jan 2002
Partridge Anthony W, Therien Alex G, Deber Charles M
Abstract excerpt
Transmembrane (TM) alpha-helices are surrounded by the hydrocarbon chains of the lipid bilayer. The low dielectric constant of this environment makes it extremely unfavorable for a residue with a polar side chain to exist in a non-H-bonded state. Therefore, in combination with a wild-type polar residue partner, a polar TM mutant could generate, in some cases, a non-native H-bond that could impair native protein...
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