Quantitative structural analysis of influenza virus by cryo-electron tomography and convolutional neural networks.
Quantitative structural analysis of influenza virus by cryo-electron tomography and convolutional neural networks.
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DOI:
10.1016/j.str.2022.02.014
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发表时间:
2022-05-05
期刊:
影响因子:
5.7
通讯作者:
Somasundaran, Mohan
中科院分区:
文献类型:
--
作者:
Huang, Qiuyu J.;Song, Kangkang;Xu, Chen;Bolon, Daniel N. A.;Wang, Jennifer P.;Finberg, Robert W.;Schiffer, Celia A.;Somasundaran, Mohan
Influenza viruses pose severe public health threats globally. Influenza viruses are extensively pleomorphic, in shape, size, and organization of viral proteins. Analysis of influenza morphology and ultrastructure can help elucidate viral structure-function relationships and aid in therapeutics and vaccine development. While cryo-electron tomography (cryoET) can depict the 3D organization of pleomorphic influenza, the low signal-to-noise ratio inherent to cryoET and viral heterogeneity have precluded detailed characterization of influenza viruses. In this report, we leveraged convolutional neural networks (CNNs) and cryoET to characterize the morphological architecture of the A/Puerto Rico/8/34 (H1N1) influenza strain. Our pipeline improved the throughput of cryoET analysis and accurately identified viral components within tomograms. Using this approach, we successfully characterized influenza morphology, glycoprotein density, and conducted subtomogram averaging of influenza glycoproteins. Application of this processing pipeline can aid in the structural characterization of not only influenza viruses, but other pleomorphic viruses and infected cells.
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DOI:
10.1099/jgv.0.000535
发表时间:
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期刊:
The Journal of general virology
影响因子:
--
作者:
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DOI:
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发表时间:
2015-03-06
期刊:
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影响因子:
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DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
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