High-Affinity α-Conotoxin PnIA Analogs Designed on the Basis of the Protein Surface Topography Method.
High-Affinity α-Conotoxin PnIA Analogs Designed on the Basis of the Protein Surface Topography Method.
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高亲和力的α-氧毒素PNIA类似物是根据蛋白质表面形象方法设计的。
DOI:
10.1038/srep36848
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发表时间:
2016-11-14
影响因子:
4.6
通讯作者:
Tsetlin VI
中科院分区:
文献类型:
--
作者:
Kasheverov IE;Chugunov AO;Kudryavtsev DS;Ivanov IA;Zhmak MN;Shelukhina IV;Spirova EN;Tabakmakher VM;Zelepuga EA;Efremov RG;Tsetlin VI
Despite some success for small molecules, elucidating structure–function relationships for biologically active peptides — the ligands for various targets in the organism — remains a great challenge and calls for the development of novel approaches. Some of us recently proposed the Protein Surface Topography (PST) approach, which benefits from a simplified representation of biomolecules’ surface as projection maps, which enables the exposure of the structure–function dependencies. Here, we use PST to uncover the “activity pattern” in α-conotoxins — neuroactive peptides that effectively target nicotinic acetylcholine receptors (nAChRs). PST was applied in order to design several variants of the α-conotoxin PnIA, which were synthesized and thoroughly studied. Among the best was PnIA[R9, L10], which exhibits nanomolar affinity for the α7 nAChR, selectivity and a slow wash-out from this target. Importantly, these mutations could hardly be delineated by “standard” structure-based drug design. The proposed combination of PST with a set of experiments proved very efficient for the rational construction of new bioactive molecules.
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影响因子:
5.5
作者:
Hess, Berk;Kutzner, Carsten;Lindahl, Erik
通讯作者:
Lindahl, Erik
影响因子:
4.8
作者:
Hogg, RC;Miranda, LP;Adams, DJ
通讯作者:
Adams, DJ
影响因子:
3.5
作者:
Akdemir, Atilla;Edink, Ewald;de Esch, Iwan J. P.
通讯作者:
de Esch, Iwan J. P.
影响因子:
4.8
作者:
Chugunov, Anton O.;Koromyslova, Anna D.;Efremov, Roman G.
通讯作者:
Efremov, Roman G.
DOI:
10.1042/bj20130636
发表时间:
2013-09-01
期刊:
The Biochemical journal
影响因子:
--
作者:
Huang S;Li SX;Bren N;Cheng K;Gomoto R;Chen L;Sine SM
通讯作者:
Sine SM