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GFP and Rhodopsin are both fluorescent proteins. What is the main difference between GFP and Rhodopsin in terms of how they work? I know that their excitation and emission wavelengths are different, but in terms of the biological mechanism, how are they different?

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  • $\begingroup$ Rhodopsins are photo-signal receptors. GFP does not function as a receptor. $\endgroup$ – Roni Saiba Mar 31 '18 at 4:51
  • $\begingroup$ @RoniSaiba so do you mean to say that rhodopsins carry out a subsequent biological function upon being exposed to light, whereas GFP does not have this subsequent function? $\endgroup$ – user1993 Mar 31 '18 at 5:15

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