西亚试剂：Human cryptochrome exhibits light-dependent magnetosensitiv

发布时间：2025-11-02

Human cryptochrome exhibits light-dependent magnetosensitivity

Lauren E. Foley, Robert J. Gegear & Steven M. Reppert

Humans are not believed to have a magnetic sense, even though many animals use the Earth's magnetic field for orientation and navigation. One model of magnetosensing in animals proposes that geomagnetic fields are perceived by light-sensitive chemical reactions involving the flavoprotein cryptochrome (CRY). Here we show using a transgenic approach that human CRY2, which is heavily expressed in the retina, can function as a magnetosensor in the magnetoreception system of Drosophila and that it does so in a light-dependent manner. The results show that human CRY2 has the molecular capability to function as a light-sensitive magnetosensor and reopen an area of sensory biology that is ready for further exploration in humans.

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