کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1403154 1501779 2013 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of solvents on conformation of dehydropeptides
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Influence of solvents on conformation of dehydropeptides
چکیده انگلیسی

Structural investigations of dehydropeptides containing (Z)-dehydrophenylalanine in solvents characterized by different polarity are discussed. The conformational analysis are based on spectroscopic methods (NMR, CD), molecular modeling techniques and in case of the tripeptide, ab initio methods. The results of temperature experiment indicate, that the only conformation of the investigated hexapeptide 3 is stabilized by intramolecular hydrogen bonds. Depending on the length of the peptide chain, the polarity of solvent influences on arrangement of the side chain of the amino acids or of the main chain of the peptide.


► Influence of a solvent polarity on the conformation of dehydropeptides was examined.
► Molecular conformation was determined by DFT and molecular dynamic methods.
► Increasing of the solvent polarity promote ordered conformation of peptide.
► Tetrapeptide and hexapeptide adopt β-turn conformation in more polar solvent.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 1035, 13 March 2013, Pages 129–139
نویسندگان
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