期刊
CURRENT OPINION IN STRUCTURAL BIOLOGY
卷 57, 期 -, 页码 118-126出版社
CURRENT BIOLOGY LTD
DOI: 10.1016/j.sbi.2019.02.003
关键词
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资金
- EU (ERC grant MERA)
- DFG [SFB1078]
- Hertie Foundation
Enzymerhodopsins are a recently discovered class of natural rhodopsin-based photoreceptors with light-regulated enzyme activity. Currently, three different types of these fusion proteins with an N-terminal type-1 rhodopsin and a C-terminal enzyme domain have been identified, but their physiological relevance is mostly unknown. Among these, histidine kinase rhodopsins (HKR) are photo-regulated two-component-like signaling systems that trigger a phosphorylation cascade, whereas rhodopsin phosphodiesterase (RhoPDE) or rhodopsin guanylyl cyclase (RhGC) show either light-activated hydrolysis or production of cyclic nucleotides. RhGC, the best characterized enzymerhodopsin, is involved in the phototaxis of fungal zoospores and allows for optically controlled production of cyclic nucleotides in different cell-types. These photoreceptors have great optogenetic potential and possess several advantages over the hitherto existing tools to manipulate cyclic-nucleotide dynamics in living cells.
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