Picosecond protein response to the chromophore isomerization of photoactive yellow protein: selective observation of tyrosine and tryptophan residues by time-resolved ultraviolet resonance Raman spectroscopy.

@article{Mizuno2007PicosecondPR,
  title={Picosecond protein response to the chromophore isomerization of photoactive yellow protein: selective observation of tyrosine and tryptophan residues by time-resolved ultraviolet resonance Raman spectroscopy.},
  author={Misao Mizuno and Norio Hamada and Fumio Tokunaga and Yasuhisa Mizutani},
  journal={The journal of physical chemistry. B},
  year={2007},
  volume={111 23},
  pages={6293-6}
}
Picosecond time-resolved ultraviolet resonance Raman (UVRR) spectra of photoactive yellow protein (PYP) were measured. UVRR bands attributed to the vibration of tyrosine and tryptophan residues showed a spectral change upon photoreaction. It was found that the hydrogen-bond strength between the chromophore and Y42 increases in the pG* state. The ultrafast… CONTINUE READING