Nonvisual Opsins and the Regulation of Peripheral Clocks by Light and Hormones

  title={Nonvisual Opsins and the Regulation of Peripheral Clocks by Light and Hormones},
  author={Maristela O Poletini and Bruno Cesar Ribeiro Ramos and Maria Nath{\'a}lia Moraes and A M L Castrucci},
  journal={Photochemistry and Photobiology},
The molecular clock machinery is conserved throughout evolution. However, how environmental cues are perceived has evolved in such a way that peripheral clocks in mammals require a variety of signals, including hormones. On the other hand, in nonmammalian cells able to directly detect light, light seems to play a major role in the synchronization of the clock. The interaction between perception of circadian light by nonvisual opsins and hormones will be discussed under the perspective of clock… 

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