Assignments and conformational dependencies of the amide III peptide backbone UV resonance Raman bands

Article Abstract:

The assignments and conformational dependencies of the UV resonance Raman bands of the amide peptide and its isotopically substituted derivatives in both their alpha-helical and PPII states is examined. The analysis confirms the complex nature of the amide III region, which contains many vibrational modes.

Author: Asher, Sanford A., Mikhonin, Alexander V., Ahmed, Zeeshan, Ianoul, Anatoli
Analysis, Spectra, Raman effect

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Peptide bond vibrational coupling

Article Abstract:

The vibrational interactions between adjacent peptide units are studied in the peptide bond angles of neutral trialanine. The amide I vibrations show a strong coupling in [alpha]-helical conformation than in PPII conformation of trialanine.

Author: Asher, Sanford A., Myshakina, Nataliya
Alanine, Amides, Structure, Report

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Subjects list: Peptides, Chemical properties
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