Subpicosecond conformational dynamics of small peptides probed by two-dimensional vibrational spectroscopy.
basic_science · Level V
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- Record sourced from PubMed, PMID 11553784.
- Also identified by PMC identifier 58716.
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Abstract
The observation of subpicosecond fluctuations in the conformation of a small peptide in water is demonstrated. We use an experimental method that is specifically sensitive to conformational dynamics taking place on an ultrafast time scale. Complementary molecular-dynamics simulations confirm that the conformational fluctuations exhibit a subpicosecond component, the time scale and amplitude of which agree well with those derived from the experiment.
Medical subject headings
- Oligopeptides
- Protein Conformation