Robust, high-throughput solution structural analyses by small angle X-ray scattering (SAXS).

Robust, high-throughput solution structural analyses by small angle X-ray scattering (SAXS).
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DOI:
10.1038/nmeth.1353
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发表时间:
2009-08
期刊:
影响因子:
48
通讯作者:
Tainer, John A.
Tainer, John A.
中科院分区:
生物学1区
文献类型:
--
作者:
Hura, Greg L.;Menon, Angeli L.;Hammel, Michal;Rambo, Robert P.;Poole, Farris L., II;Tsutakawa, Susan E.;Jenney, Francis E., Jr.;Classen, Scott;Frankel, Kenneth A.;Hopkins, Robert C.;Yang, Sung-jae;Scott, Joseph W.;Dillard, Bret D.;Adams, Michael W. W.;Tainer, John A.

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我们提出了一个高效的流水线,使高通量分析的蛋白质结构在溶液中的小角X射线散射(SAXS)。我们的SAXS管道结合了微升体积的自动化样品处理、温度和厌氧控制、快速数据收集、数据分析,并将结构分析与自动存档相结合。我们将50种代表性蛋白质(主要来自激烈火球菌)置于该管道中,发现其中30种是溶液中的多聚体结构。SAXS分析使我们能够区分聚集和未折叠的蛋白质,定义全局结构参数和寡聚状态的大多数样品,确定形状和相似的结构为25个未知的结构,并确定信封41蛋白质。我们相信,高通量SAXS是一种可能改变结构基因组学研究方式的技术。
We present an efficient pipeline enabling high-throughput analysis of protein structure in solution with small angle X-ray scattering (SAXS). Our SAXS pipeline combines automated sample handling of microliter volumes, temperature and anaerobic control, rapid data collection, data analysis, and couples structural analysis with automated archiving. We subjected 50 representative proteins, mostly from Pyrococcus furiosus, to this pipeline, revealing that 30 were multimeric structures in solution. SAXS analysis allowed us to distinguish aggregated and unfolded proteins, define global structural parameters and oligomeric states for most samples, identify shapes and similar structures for 25 unknown structures, and determine envelopes for 41 proteins. We believe that high throughput SAXS is an enabling technology that may change the way that structural genomics research is done.
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