Structure of proteins in eukaryotic compartments.

Structure of proteins in eukaryotic compartments.
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真核细胞中蛋白质的结构。

DOI:
10.1021/ja304809s
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发表时间:
2012-08-01
影响因子:
15
通讯作者:
Shekhtman A
Shekhtman A
中科院分区:
化学1区
文献类型:
--
作者:
Bertrand K;Reverdatto S;Burz DS;Zitomer R;Shekhtman A

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In-cell NMR in the yeast P. pastoris was used to study the influence of metabolic changes on protein structure and dynamics at atomic resolution. Induction of Ubiquitin overexpression from the methanol induced AOX1 promoter results in the protein being localized in the cytosol and yields a well-resolved in-cell NMR spectrum. When P. pastoris is grown on a mixed carbon source containing both dextrose and methanol, Ubiquitin is found in small storage vesicles distributed in the cytosol and the resulting in-cell NMR spectrum is broadened. The sequestration of overexpressed proteins into storage vesicles, which are inaccessible to small molecules, was demonstrated for two unrelated proteins and two different strains of P. pastoris, suggesting its general nature.
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