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TitleConvolutional neural networks for automated annotation of cellular cryo-electron tomograms.
Journal, issue, pagesNat Methods, Vol. 14, Issue 10, Page 983-985, Year 2017
Publish dateAug 28, 2017
AuthorsMuyuan Chen / Wei Dai / Stella Y Sun / Darius Jonasch / Cynthia Y He / Michael F Schmid / Wah Chiu / Steven J Ludtke /
PubMed AbstractCellular electron cryotomography offers researchers the ability to observe macromolecules frozen in action in situ, but a primary challenge with this technique is identifying molecular components ...Cellular electron cryotomography offers researchers the ability to observe macromolecules frozen in action in situ, but a primary challenge with this technique is identifying molecular components within the crowded cellular environment. We introduce a method that uses neural networks to dramatically reduce the time and human effort required for subcellular annotation and feature extraction. Subsequent subtomogram classification and averaging yield in situ structures of molecular components of interest. The method is available in the EMAN2.2 software package.
External linksNat Methods / PubMed:28846087 / PubMed Central
MethodsEM (subtomogram averaging) / EM (tomography)
Resolution38.5 - 80.0 Å
Structure data

EMDB-8589:
Subtomogram average of microtubules from Trypanosoma brucei
Method: EM (subtomogram averaging) / Resolution: 55.0 Å

EMDB-8590:
Subtomogram average of ribosome from Trypanosoma brucei
Method: EM (subtomogram averaging) / Resolution: 38.5 Å

EMDB-8591:
Subtomogram average of protein complexes on the thylakoid membrane in Cyanobacteria
Method: EM (subtomogram averaging) / Resolution: 42.0 Å

EMDB-8592:
Subtomogram average of microtubules from PC12 cell
Method: EM (subtomogram averaging) / Resolution: 64.0 Å

EMDB-8593:
Subtomogram average of microtubules from Human platelet
Method: EM (subtomogram averaging) / Resolution: 80.0 Å

EMDB-8594:
Automated tomogram annotation of PC12 cell
Method: EM (tomography)

Source
  • Trypanosoma brucei (eukaryote)
  • Synechococcus (bacteria)
  • Rattus (rat)
  • Homo sapiens (human)

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