The rhodopsin-guanylyl cyclase of the aquatic fungus Blastocladiella emersonii enables fast optical control of cGMP signaling
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The rhodopsin-guanylyl cyclase of the aquatic fungus Blastocladiella emersonii enables fast optical control of cGMP signaling. / Scheib, Ulrike; Stehfest, Katja; Gee, Christine E; Körschen, Heinz G; Fudim, Roman; Oertner, Thomas G; Hegemann, Peter.
In: SCI SIGNAL, Vol. 8, No. 389, 2015, p. rs8.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - The rhodopsin-guanylyl cyclase of the aquatic fungus Blastocladiella emersonii enables fast optical control of cGMP signaling
AU - Scheib, Ulrike
AU - Stehfest, Katja
AU - Gee, Christine E
AU - Körschen, Heinz G
AU - Fudim, Roman
AU - Oertner, Thomas G
AU - Hegemann, Peter
N1 - Christine E Gee is a co-first author on this publication, Thomas G Oertner is co-senior author
PY - 2015
Y1 - 2015
N2 - Blastocladiomycota fungi form motile zoospores that are guided by sensory photoreceptors to areas of optimal light conditions. We showed that the microbial rhodopsin of Blastocladiella emersonii is a rhodopsin-guanylyl cyclase (RhGC), a member of a previously uncharacterized rhodopsin class of light-activated enzymes that generate the second messenger cyclic guanosine monophosphate (cGMP). Upon application of a short light flash, recombinant RhGC converted within 8 ms into a signaling state with blue-shifted absorption from which the dark state recovered within 100 ms. When expressed in Xenopus oocytes, Chinese hamster ovary cells, or mammalian neurons, RhGC generated cGMP in response to green light in a light dose-dependent manner on a subsecond time scale. Thus, we propose RhGC as a versatile tool for the optogenetic analysis of cGMP-dependent signaling processes in cell biology and the neurosciences.
AB - Blastocladiomycota fungi form motile zoospores that are guided by sensory photoreceptors to areas of optimal light conditions. We showed that the microbial rhodopsin of Blastocladiella emersonii is a rhodopsin-guanylyl cyclase (RhGC), a member of a previously uncharacterized rhodopsin class of light-activated enzymes that generate the second messenger cyclic guanosine monophosphate (cGMP). Upon application of a short light flash, recombinant RhGC converted within 8 ms into a signaling state with blue-shifted absorption from which the dark state recovered within 100 ms. When expressed in Xenopus oocytes, Chinese hamster ovary cells, or mammalian neurons, RhGC generated cGMP in response to green light in a light dose-dependent manner on a subsecond time scale. Thus, we propose RhGC as a versatile tool for the optogenetic analysis of cGMP-dependent signaling processes in cell biology and the neurosciences.
U2 - 10.1126/scisignal.aab0611
DO - 10.1126/scisignal.aab0611
M3 - SCORING: Journal article
C2 - 26268609
VL - 8
SP - rs8
JO - SCI SIGNAL
JF - SCI SIGNAL
SN - 1945-0877
IS - 389
ER -