Drosophila Hyperkinetic mutants have reduced sleep and impaired memory.

Abstract excerpt

In mammals, sleep is thought to be important for health, cognition, and memory. Fruit flies share most features of mammalian sleep, and a recent study found that Drosophila lines carrying loss-of-function mutations in Shaker (Sh) are short sleeping, suggesting that the Sh current plays a major role in regulating daily sleep amount. The Sh current is potentiated by a beta modulatory subunit coded by Hyperkinetic...

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