Crystal structure of the natural anion-conducting channelrhodopsin GtACR1.
Crystal structure of the natural anion-conducting channelrhodopsin GtACR1.
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DOI:
10.1038/s41586-018-0511-6
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发表时间:
2018-09
期刊:
影响因子:
64.8
通讯作者:
Deisseroth K
中科院分区:
文献类型:
--
作者:
Kim YS;Kato HE;Yamashita K;Ito S;Inoue K;Ramakrishnan C;Fenno LE;Evans KE;Paggi JM;Dror RO;Kandori H;Kobilka BK;Deisseroth K
The naturally occurring channelrhodopsin variant anion channelrhodopsin-1 (ACR1), discovered in the cryptophyte algae Guillardia theta, exhibits large light-gated anion conductance and high anion selectivity when expressed in heterologous settings, properties that support its use as an optogenetic tool to inhibit neuronal firing with light. However, molecular insight into ACR1 is lacking owing to the absence of structural information underlying light-gated anion conductance. Here we present the crystal structure of G. theta ACR1 at 2.9 Å resolution. The structure reveals unusual architectural features that span the extracellular domain, retinal-binding pocket, Schiff-base region, and anion-conduction pathway. Together with electrophysiological and spectroscopic analyses, these findings reveal the fundamental molecular basis of naturally occurring light-gated anion conductance, and provide a framework for designing the next generation of optogenetic tools. The crystal structure of anion channelrhodopsin-1 (ACR1) from the algae Guillardia theta provides insights into the basis of anion conductance.
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影响因子:
4.6
作者:
Hontani Y;Marazzi M;Stehfest K;Mathes T;van Stokkum IHM;Elstner M;Hegemann P;Kennis JTM
通讯作者:
Kennis JTM
影响因子:
62.1
作者:
Ernst, Oliver P.;Lodowski, David T.;Elstner, Marcus;Hegemann, Peter;Brown, Leonid S.;Kandori, Hideki
通讯作者:
Kandori, Hideki
影响因子:
16.6
作者:
Kato, Hideaki E.;Kamiya, Motoshi;Sugo, Seiya;Ito, Jumpei;Taniguchi, Reiya;Orito, Ayaka;Hirata, Kunio;Inutsuka, Ayumu;Yamanaka, Akihiro;Maturana, Andres D.;Ishitani, Ryuichiro;Sudo, Yuki;Hayashi, Shigehiko;Nureki, Osamu
通讯作者:
Nureki, Osamu
影响因子:
2.9
作者:
GOVINDJEE, R;KONO, M;EBREY, TG
通讯作者:
EBREY, TG
影响因子:
4.6
作者:
Govorunova EG;Sineshchekov OA;Rodarte EM;Janz R;Morelle O;Melkonian M;Wong GK;Spudich JL
通讯作者:
Spudich JL