Visual proteomics of the human pathogen Leptospira interrogans.

Visual proteomics of the human pathogen Leptospira interrogans.
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DOI:
10.1038/nmeth.1390
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发表时间:
2009-11
期刊:
影响因子:
48
通讯作者:
Aebersold, Ruedi
Aebersold, Ruedi
中科院分区:
生物学1区
文献类型:
--
作者:
Beck, Martin;Malmstroem, Johan A.;Lange, Vinzenz;Schmidt, Alexander;Deutsch, Eric W.;Aebersold, Ruedi

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Systems biology conceptualizes biological systems as dynamic networks of interacting elements, whereby functionally important properties are thought to emerge from the structure of such networks. Due to the ubiquitous role of complexes of interacting proteins in biological systems, their subunit composition and temporal and spatial arrangement within the cell are of particular interest. ‘Visual proteomics’ attempts to localize individual macromolecular complexes inside of intact cells by template matching reference structures into cryo electron tomograms. Here we have combined quantitative mass spectrometry and cryo electron tomography to detect, count and localize specific protein complexes within the cytoplasm of the human pathogen Leptospira interrogans. We describe a novel scoring function for visual proteomics and assess its performance and accuracy under realistic conditions. We discuss current and general limitations of the approach, as well as expected improvements in the future.
DOI: 10.1038/nature08184
发表时间: 2009-08-06
期刊: Nature
影响因子: 64.8
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Malmström J;Beck M;Schmidt A;Lange V;Deutsch EW;Aebersold R
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