7KA2

Aldolase, rabbit muscle (beam-tilt refinement x2)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.60 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

High-resolution cryo-EM using beam-image shift at 200 keV.

Cash, J.N.Kearns, S.Li, Y.Cianfrocco, M.A.

(2020) IUCrJ 7: 1179-1187

  • DOI: 10.1107/S2052252520013482
  • Primary Citation of Related Structures:  
    7K9L, 7K9X, 7KA2, 7KA3, 7KA4

  • PubMed Abstract: 
  • Recent advances in single-particle cryo-electron microscopy (cryo-EM) data collection utilize beam-image shift to improve throughput. Despite implementation on 300 keV cryo-EM instruments, it remains unknown how well beam-image-shift data collection affects data quality on 200 keV instruments and the extent to which aberrations can be computationally corrected ...

    Recent advances in single-particle cryo-electron microscopy (cryo-EM) data collection utilize beam-image shift to improve throughput. Despite implementation on 300 keV cryo-EM instruments, it remains unknown how well beam-image-shift data collection affects data quality on 200 keV instruments and the extent to which aberrations can be computationally corrected. To test this, a cryo-EM data set for aldolase was collected at 200 keV using beam-image shift and analyzed. This analysis shows that the instrument beam tilt and particle motion initially limited the resolution to 4.9 Å. After particle polishing and iterative rounds of aberration correction in RELION , a 2.8 Å resolution structure could be obtained. This analysis demonstrates that software correction of microscope aberrations can provide a significant improvement in resolution at 200 keV.


    Organizational Affiliation

    Life Sciences Institute, Department of Biological Chemistry, University of Michigan, Ann Arbor, MI 48109, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Fructose-bisphosphate aldolase AB [auth A], A [auth B], C, D363Oryctolagus cuniculusMutation(s): 0 
Gene Names: ALDOA
EC: 4.1.2.13
UniProt
Find proteins for P00883 (Oryctolagus cuniculus)
Explore P00883 
Go to UniProtKB:  P00883
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.60 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Science Foundation (NSF, United States)1759826
National Institutes of Health/Office of the DirectorS10OD020011

Revision History  (Full details and data files)

  • Version 1.0: 2020-12-02
    Type: Initial release