EMPIAR-11544
Quantification of gallium cryo-FIB milling damage in biological lamella [multiple data sets in MRC format]
Publication:

Quantification of gallium cryo-FIB milling damage in biological lamellae

Lucas BA, Grigorieff N

Proceedings of the National Academy of Sciences of the United States of America 120 (2023)

PMID: 37216561

Related EMDB entry:
Deposited:
2023-05-05
Released:
2023-05-12
Last modified:
2023-08-18
Imageset size:
8.11 GB
Imageset DOI:
Experimental metadata:
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Contains:
  • micrographs - single frame
  • reconstructed volumes
1. Micrographs of untilted lamellae from cryo-FIB milled S. cerevisiae cells
Category:
micrographs - single frame
Image format:
MRC
No. of images or tilt series:
30
Image size:
(5760, 4092)
Pixel type:
32 BIT FLOAT
Pixel spacing:
(1.06, 1.06)
Details:
Micrographs were recorded as movies on a Titan Krios at 300 keV equipped with a K3 direct detector and an energy filter, with an exposure rate of 1 e-/Å2 and a total exposure of 50 e-/Å2.
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2. Scaled maximum intensity projections of SNR values obtained by 2D template matching with a large ribosomal subunit template
Category:
micrographs - single frame
Image format:
MRC
No. of images or tilt series:
30
Image size:
(5760, 4092)
Pixel type:
32 BIT FLOAT
Pixel spacing:
(1.06, 1.06)
Details:
Maximum intensity projections (MIPs) of the observed SNR values, scaled by subtracting the average SNR, and dividing by the standard deviation of the SNR per pixel. The MIPs display peaks in places where large ribosomal subunits were detected by 2D template matching. Peaks are associated with specific x,y locations, defocus and orientations of the targets that correspond with the matching template.
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3. Template of S. cerevisiae large ribosomal subunit used for 2D template matching
Category:
reconstructed volumes
Image format:
MRC
No. of images or tilt series:
1
Image size:
(384, 384)
Pixel type:
32 BIT FLOAT
Pixel spacing:
(1.06, 1.06)
Details:
3D density maps used as templates in 2D template matching to detect large ribosomal subunits in the 2D images of lamellae of S. cerevisiae cells. The density maps were generated with the cryo-EM simulator implemented in cisTEM.
Files:
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