Pavel Ševela [creativecommons license] via Wikimedia CommonsThe circadian clock is the mechanism that coordinates an organism’s internal rhythms with daily changes in the environment. To maintain synchronicity, the clock is continuously reset or entrained by signals from the environment, primarily light. But the molecular basis of clock entrainment is not well understood. A new study directed by Shimon Amir of Concordia University and Nahum Sonenberg of McGill University, both in Montreal, Canada, brings to light the process by which entrainment is controlled at the level of mRNA translation.
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