Biology of Light-Sensing Proteins in Plants and Microorganisms
A wide variety of light-sensing proteins that are found in plants and microorganisms and that provide natural resources for engineering optogenetic tools are briefly reviewed. We include microbial rhodopsins, which absorb blue/green light; phytochromes, which absorb red/far-red light; UV-A/blue-absorbing flavoproteins (cryptochromes, LOV-domain proteins, BLUF-domain proteins); and the recently discovered UV-B sensor UVR8. Among them, the significance of channelrhodopsins and photoactivated adenylyl cyclases is emphasized.
KeywordsRhodopsin Phytochrome Cryptochrome LOV domain BLUF domain UVR8 Channelrhodopsin Photoactivated adenylyl cyclase
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