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Circadian Clocks Triggered Chemical Reactions may Be Behind Jet Lag

enoid production was disrupted.

"We can now show that this conformational change in the protein is directly related to its function in the organism," said Brian Zoltowski, the paper's lead author and a graduate student at Cornell in chemical biology.

The researchers believe that just like the circadian clock allows the fungus to regulate and produce carotenoids only when they are needed for protection against the sun's rays, a similar "switch" may be responsible for timing the sleep cycle in humans.

"We were interested in trying to understand behavior at the molecular level. This a great example of chemical biology, in that we can perturb the chemistry of a single molecule in a particular way and actually change the behavior of a complex organism," said Crane.

The study has been published in the journal Science.


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