Ligand-binding domain of an α7-nicotinic receptor chimera and its complex with agonist.
Ligand-binding domain of an α7-nicotinic receptor chimera and its complex with agonist.
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DOI:
10.1038/nn.2908
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发表时间:
2011-09-11
影响因子:
25
通讯作者:
Chen L
中科院分区:
文献类型:
--
作者:
Li SX;Huang S;Bren N;Noridomi K;Dellisanti CD;Sine SM;Chen L
The α7 acetylcholine receptor (AChR) mediates pre- and postsynaptic neurotransmission in the central nervous system and is a potential therapeutic target in neurodegenerative, neuropsychiatric and inflammatory disorders. We determined the crystal structure of the extracellular domain of a receptor chimera constructed from the human α7 AChR and Lymnaea stagnalis acetylcholine binding protein (AChBP), which shares 64% sequence identity and 71% similarity with native α7. We also determined the structure with bound epibatidine, a potent AChR agonist. Comparison of the structures revealed molecular rearrangements and interactions that mediate agonist recognition and early steps in signal transduction in α7 AChRs. The structures further revealed a ring of negative charge within the central vestibule, poised to contribute to cation selectivity. Structure-guided mutational studies disclosed distinctive contributions to agonist recognition and signal transduction in α7 AChRs. The structures provide a realistic template for structure-aided drug design and for defining structure–function relationships of α7 AChRs.
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影响因子:
11.4
作者:
Hansen, SB;Sulzenbacher, G;Bourne, Y
通讯作者:
Bourne, Y
影响因子:
3.6
作者:
Gao, Fan;Mer, Georges;Sine, Steven M.
通讯作者:
Sine, Steven M.
影响因子:
64.8
作者:
Hilf, Ricarda J. C.;Dutzler, Raimund
通讯作者:
Dutzler, Raimund
DOI:
10.1107/s0907444998003254
发表时间:
1998-09-01
期刊:
ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
影响因子:
--
作者:
Brunger, AT;Adams, PD;Warren, GL
通讯作者:
Warren, GL
影响因子:
64.8
作者:
Hilf, Ricarda J. C.;Dutzler, Raimund
通讯作者:
Dutzler, Raimund