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  3. Vol. 5 No. 3 (2001)
  4. A FLUORESCENCE, 1H NMR SPECTROSCOPY AND MOLECULAR DYNAMICS STUDY OF THE INFLUENCE OF ROTAMER POPULATION ON FLUORESCENCE DECAY OF TYROSINE, PHENYLALANINE AND THEIR DERIVATIVES

A FLUORESCENCE, 1H NMR SPECTROSCOPY AND MOLECULAR DYNAMICS STUDY OF THE INFLUENCE OF ROTAMER POPULATION ON FLUORESCENCE DECAY OF TYROSINE, PHENYLALANINE AND THEIR DERIVATIVES

Abstract

Molecular dynamics simulations were carried out on tyrosine and phenylalanine and their derivatives with various terminal groups to determine the populations of side-chain rotamers. The obtained populations were compared with those calculated from fluorescence decay lifetime distributions and NMR studies. It was found that theoretically calculated populations do not match the experimental ones, which suggests that the static rotamer model is inadequate to explain the dynamics of tyrosine and phenylalanine side chain in fluorescence and NMR experiments.

Keywords:

tyrosine, phenylalanine, rotamers, fluorescence, molecular dynamics, NMR spectroscopy

Details

Issue
Vol. 5 No. 3 (2001)
Section
Research article
Published
2001-09-30
Licencja:
Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Authors

  • ROBERT GANZYNKOWICZ

    University of Gdansk, Faculty of Chemistry

  • ADAM LIWO

    University of Gdansk, Faculty of Chemistry

  • WIESŁAW WICZK

    University of Gdansk, Faculty of Chemistry

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