Integrative structural dynamics probing of the conformational heterogeneity in synaptosomal-associated protein 25
Integrative structural dynamics probing of the conformational heterogeneity in synaptosomal-associated protein 25
复制标题
突触体相关蛋白 25 构象异质性的综合结构动力学探测
DOI:
10.1016/j.xcrp.2021.100616
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发表时间:
2021
影响因子:
8.9
通讯作者:
Sanabria, Hugo
中科院分区:
文献类型:
--
作者:
Saikia, Nabanita;Yanez-Orozco, Inna S.;Qiu, Ruoyi;Hao, Pengyu;Milikisiyants, Sergey;Ou, Erkang;Hamilton, George L.;Weninger, Keith R.;Smirnova, Tatyana I.;Sanabria, Hugo
SNAP-25 (synaptosomal-associated protein of 25 kDa) is a prototypical intrinsically disordered protein (IDP) that is unstructured by itself but forms coiled-coil helices in the SNARE complex. With high conformational heterogeneity, detailed structural dynamics of unbound SNAP-25 remain elusive. Here, we report an integrative method to probe the structural dynamics of SNAP-25 by combining replica-exchange discrete molecular dynamics (rxDMD) simulations and label-based experiments at ensemble and single-molecule levels. The rxDMD simulations systematically characterize the coil-to-molten globular transition and reconstruct structural ensemble consistent with prior ensemble experiments. Label-based experiments using Förster resonance energy transfer and double electron-electron resonance further probe the conformational dynamics of SNAP-25. Agreements between simulations and experiments under both ensemble and single-molecule conditions allow us to assign specific helix-coil transitions in SNAP-25 that occur in submillisecond timescales and potentially play a vital role in forming the SNARE complex. We expect that this integrative approach may help further our understanding of IDPs.
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影响因子:
3.3
作者:
Shirvanyants, David;Ding, Feng;Tsao, Douglas;Ramachandran, Srinivas;Dokholyan, Nikolay V.
通讯作者:
Dokholyan, Nikolay V.
DOI:
10.1007/978-3-319-20164-1_5
发表时间:
2015-01-01
期刊:
INTRINSICALLY DISORDERED PROTEINS STUDIED BY NMR SPECTROSCOPY
影响因子:
--
作者:
Kurzbach, Dennis;Kontaxis, Georg;Konrat, Robert
通讯作者:
Konrat, Robert
影响因子:
16.6
作者:
Yanez Orozco IS;Mindlin FA;Ma J;Wang B;Levesque B;Spencer M;Rezaei Adariani S;Hamilton G;Ding F;Bowen ME;Sanabria H
通讯作者:
Sanabria H
影响因子:
62.1
作者:
Uversky, Vladimir N.;Dave, Vrushank;Iakoucheva, Lilia M.;Malaney, Prerna;Metallo, Steven J.;Pathak, Ravi Ramesh;Joerger, Andreas C.
通讯作者:
Joerger, Andreas C.
影响因子:
3.3
作者:
Zhang, Bin W.;Dai, Wei;Gallicchio, Emilio;He, Peng;Xia, Junchao;Tan, Zhiqiang;Levy, Ronald M.
通讯作者:
Levy, Ronald M.