Photoswitchable diacylglycerols enable optical control of protein kinase C.

Photoswitchable diacylglycerols enable optical control of protein kinase C.
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DOI:
10.1038/nchembio.2141
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发表时间:
2016-09
影响因子:
14.8
通讯作者:
Trauner D
Trauner D
中科院分区:
生物学1区
文献类型:
--
作者:
Frank JA;Yushchenko DA;Hodson DJ;Lipstein N;Nagpal J;Rutter GA;Rhee JS;Gottschalk A;Brose N;Schultz C;Trauner D

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Increased levels of the second messenger lipid diacylglycerol (DAG) induce a variety of downstream signaling events including the translocation of C1 domain-containing proteins toward the plasma membrane. Here, we introduce three light-sensitive DAGs, termed PhoDAGs, which feature a photoswitchable acyl chain allowing for reversible isomerization under the control of light. The PhoDAGs are inactive in the dark and promote the translocation of proteins that feature C1 domains towards the plasma membrane upon stimulation with UV-A irradiation. This effect is quickly reversed after the termination of photostimulation, or by irradiation with blue light, permitting multiple rounds of translocation and the generation of oscillation patterns. Both novel and conventional isoforms of protein kinase C (PKC), as well as Munc13, can thus be put under optical control. PhoDAGs can be used to control vesicle release in excitable cells, such as mouse pancreatic islets and hippocampal neurons, and modulate synaptic transmission at the neuromuscular junction of Caenorhabditis elegans. As such, the PhoDAGs afford an unprecedented degree of spatiotemporal control, particularly with respect to pattern formation, and are broadly applicable tools to unravel various DAG-dependent signaling pathways.
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