Does the chromophore's ring move after photoexcitation of rhodopsin?

@article{Ebrey2005DoesTC,
  title={Does the chromophore's ring move after photoexcitation of rhodopsin?},
  author={Thomas G. Ebrey and Masato Kumauchi},
  journal={Biophysical journal},
  year={2005},
  volume={88 6},
  pages={L41-2}
}
By comparing the shift of the absorption maxima when a visual pigment is converted to its lumirhodopsin photointermediate for two classes of pigments, we can infer whether or not the pigment's beta-ionone ring has left its binding site. We compare this shift for the long-wavelength sensitive visual pigment of chicken iodopsin (lambdamax = 571 nm), which has… CONTINUE READING