Molecular “kiss of death” wins Noble Prize in Chemistry

Three researchers who unraveled the mechanism behind a molecular kiss of death, a tag that marks proteins for destruction, have been awarded this year's Nobel Prize in Chemistry. Irwin Rose of the University of California, together with Aaron Ciechanover and Avram Hershko from the Israel Institute of Technology in Haifa, transformed cell biology during the early 1980s through their studies of how proteins are broken down inside cells. Their work sparked new ideas about how cells regulate themsel...
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On Understanding Sleep

Scientists find what controls waking up and going to sleep. The latest finding from an Indian-American circadian rhythms expert at Northwestern University is that he has discovered how an animal’s biological clock wakes it up in the morning and puts it to sleep at night. In a study of brain circadian neurons that govern the daily sleep-wake cycle’s timing, doctor Ravi Allada and his team found that high sodium channel activity in these neurons during the day turn the cells on and ultimatel...
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