Structure of the TRPA1 ion channel suggests regulatory mechanisms.
Structure of the TRPA1 ion channel suggests regulatory mechanisms.
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DOI:
10.1038/nature14367
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发表时间:
2015-04-23
期刊:
影响因子:
64.8
通讯作者:
Julius, David
中科院分区:
文献类型:
--
作者:
Paulsen, Candice E.;Armache, Jean-Paul;Gao, Yuan;Cheng, Yifan;Julius, David
The TRPA1 ion channel (a.k.a the ‘wasabi receptor’) is a detector of noxious chemical agents encountered in our environment or produced endogenously during tissue injury or drug metabolism. These include a broad class of electrophiles that activate the channel through covalent protein modification. TRPA1 antagonists hold potential for treating neurogenic inflammatory conditions provoked or exacerbated by irritant exposure. Despite compelling reasons to understand TRPA1 function, structural mechanisms underlying channel regulation remain obscure. Here, we use single-particle electron cryo-microscopy to determine the structure of full-length human TRPA1 to ~4Å resolution in the presence of pharmacophores, including a potent antagonist. A number of unexpected features are revealed, including an extensive coiled-coil assembly domain stabilized by polyphosphate co-factors and a highly integrated nexus that converges on an unpredicted TRP-like allosteric domain. These findings provide novel insights into mechanisms of TRPA1 regulation, and establish a blueprint for structure-based design of analgesic and anti-inflammatory agents.
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DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH
DOI:
10.1107/s0907444909042073
发表时间:
2010-01
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Chen VB;Arendall WB 3rd;Headd JJ;Keedy DA;Immormino RM;Kapral GJ;Murray LW;Richardson JS;Richardson DC
通讯作者:
Richardson DC
影响因子:
5.6
作者:
Jones, DT
通讯作者:
Jones, DT
影响因子:
56.9
作者:
Amunts, Alexey;Brown, Alan;Ramakrishnan, V.
通讯作者:
Ramakrishnan, V.
DOI:
10.1085/jgp.200810136
发表时间:
2009-03
期刊:
The Journal of general physiology
影响因子:
--
作者:
Caspani O;Heppenstall PA
通讯作者:
Heppenstall PA