TY - JOUR A1 - Vierock, Johannes Tobias Theodor A1 - Rodriguez-Rozada, Silvia A1 - Dieter, Alexander A1 - Pieper, Florian A1 - Sims, Ruth A1 - Tenedini, Federico A1 - Bergs, Amelie A1 - Bendifallah, Imane A1 - Zhou, Fangmin A1 - Zeitzschel, Nadja A1 - Ahlbeck, Joachim A1 - Augustin, Sandra A1 - Sauter, Kathrin A1 - Papagiakoumou, Eirini A1 - Gottschalk, Alexander A1 - Soba, Peter A1 - Emiliani, Valentina A1 - Engel, Andreas K. A1 - Hegemann, Peter A1 - Wiegert, Simon T1 - BiPOLES is an optogenetic tool developed for bidirectional dual-color control of neurons T2 - Nature Communications N2 - Optogenetic manipulation of neuronal activity through excitatory and inhibitory opsins has become an indispensable experimental strategy in neuroscience research. For many applications bidirectional control of neuronal activity allowing both excitation and inhibition of the same neurons in a single experiment is desired. This requires low spectral overlap between the excitatory and inhibitory opsin, matched photocurrent amplitudes and a fixed expression ratio. Moreover, independent activation of two distinct neuronal populations with different optogenetic actuators is still challenging due to blue-light sensitivity of all opsins. Here we report BiPOLES, an optogenetic tool for potent neuronal excitation and inhibition with light of two different wavelengths. BiPOLES enables sensitive, reliable dual-color neuronal spiking and silencing with single- or two-photon excitation, optical tuning of the membrane voltage, and independent optogenetic control of two neuronal populations using a second, blue-light sensitive opsin. The utility of BiPOLES is demonstrated in worms, flies, mice and ferrets. KW - Ion channels in the nervous system KW - Molecular neuroscience KW - Multiphoton microscopy KW - Optogenetics Y1 - 2021 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/63256 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-632564 SN - 2041-1723 N1 - Open Access funding enabled and organized by Projekt DEAL. N1 - This work was supported by the German Research Foundation, DFG (SPP1926, FOR2419/P6, SFB936/B8 to J.S.W., SFB936/A2 and SPP2041/EN533/15-1 to A.K.E., SPP1926 and SFB1315 to P.H., SFB807/P11 to A.C.F.B. and A.G.), the ‘Agence Nationale de la Recherche’ (CE16-2019 HOLOPTOGEN, CE16-0021 SLALLOM, ANR-10-LABX-65 LabEx LIFESENSES, and ANR-18-IAHU-01 *IHU FOReSIGHT to V.E.), the AXA research foundation and the European Research Council (ERC2016-StG-714762 to J.S.W., HOLOVIS-AdG to V.E., Stardust H2020 767092 to P.H.). Peter Hegemann is a Hertie Professor and supported by the Hertie Foundation. VL - 12.2021 IS - art. 4527 SP - 1 EP - 20 PB - Nature Publishing Group UK CY - [London] ER -