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Interaction between water and polar groups of the helix backbone: An important determinant of helix propensities

We report an enthalpic factor involved in determining helix propensities of nonpolar amino acids. Thermal unfolding curves of the five 13-residue peptides, Ac-KA(4)XA(4)KGY-NH(2) (X = Ala, Leu, Ile, Val, Gly), have been measured by using CD in water/trifluoroethanol (TFE) mixtures. The peptide helix...

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Autors principals: Luo, Peizhi, Baldwin, Robert L.
Format: Artigo
Idioma:Inglês
Publicat: The National Academy of Sciences 1999
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Accés en línia:https://ncbi.nlm.nih.gov/pmc/articles/PMC21794/
https://ncbi.nlm.nih.gov/pubmed/10220396
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