Advertisement

The Excited-State Deprotonation of the Indole N-H of Tryptophan

  • A. G. Szabo
Part of the NATO Advanced Science Institutes Series book series (NSSA, volume 69)

Abstract

Recently,1 we presented a rationalisation of the dual exponential decay kinetics (τ1 = 3.1 ns, τ2 = 0.5 ns) of the fluorescence of aqueous solutions of tryptophan (pH 7). In order to study the effect of protonation of the α-amino group on these decay kinetics, we measured the fluorescence decay of tryptophan at pH 10.5 (O.1M carbonate buffer), a pH where the α-amino group (pK = 9.3) would largely be unprotonated.

Keywords

Fluorescence Spectrum Fluorescence Decay Decay Kinetic Dual Exponen Double Exponential Decay 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    A.G. Szabo & D.M. Rayner, J.Amer.Chem.Soc. 102 554 (1980)CrossRefGoogle Scholar
  2. 2.
    E. Vanderdonckt, Bull.Soc.Chim.Belges 78 69 (1969)Google Scholar
  3. 3.
    J.W. Bridges & R.T. Williams, Biochem.J. 107 225 (1968)Google Scholar
  4. 4.
    L. Brand & W.R. Laws, earlier contribution in this volume.Google Scholar

Copyright information

© Springer Science+Business Media New York 1983

Authors and Affiliations

  • A. G. Szabo

There are no affiliations available

Personalised recommendations