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Subpicosecond fluorescence depolarization studies of tryptophan and tryptophanyl residues of proteins
The Journal of Physical Chemistry
Fluorescence depolarization of the exposed tryptophanyl residue in the peptide melittin and the buried tryptophanyl residue in the protein azurin (from the bacteria Pseudomonos aeruginoso) was measured with subpicosecond resolution at various excitation and emission wavelengths. A short time component was found in both the fluorescence decay and fluorescence anisotropy decay for the tryptophanyl residue in melittin with time constants of 1.4 f 0.2 and 3.8 f 2 ps, respectively. The short timedoi:10.1021/j100186a047 fatcat:5ga3d45azbgafggsp6swatbb2i