Challenge of large-scale motion for residual dipolar coupling based analysis of configuration: the case of fibrosterol sulfate A.
Challenge of large-scale motion for residual dipolar coupling based analysis of configuration: the case of fibrosterol sulfate A.
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DOI:
10.1021/ja205295q
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发表时间:
2011-09-21
影响因子:
15
通讯作者:
Griesinger, Christian
中科院分区:
文献类型:
--
作者:
Sun, Han;Reinscheid, Uwe M.;Whitson, Emily L.;d'Auvergne, Edward J.;Ireland, Chris M.;Navarro-Vazquez, Armando;Griesinger, Christian
Fibrosterol sulfate A is a polysulfated bis-steroid with an atypical side chain. Due to the flexibility of the linker, large scale motions that change dramatically the shape of the entire molecule are expected. Such motions pose major challenges to the structure elucidation and the correct determination of configuration. In this study, we will describe the determination of the relative configuration of fibrosterol sulfate A through an RDC-based multiple alignment tensor analysis complemented by molecular dynamics. For completeness, we applied also the single tensor approach which is unreliable due to the large scale motions and compare the results.
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