EMPIAR-10437
Single-particle cryo-EM of the full-length merozoite surface protein 1 from Plasmodium falciparum [multiple data sets in MRC and MRCS formats]
Publication:

Structure of the merozoite surface protein 1 from Plasmodium falciparum

Dijkman PM, Marzluf T, Zhang Y, Chang SYS, Helm D, Lanzer M, Bujard H, Kudryashev M

Science advances 7 (2021)

PMID: 34078606

Deposited:
2020-06-08
Released:
2021-11-08
Last modified:
2021-11-08
Imageset size:
4.33 TB
Imageset DOI:
Experimental metadata:
Download xml json

Compressed by PDBj:

Image formats and pixel types shown below are those of the original, non-compressed files.

Movies in the micrographs directory of this entry were compressed to TIFF by EMPIAR Japan to save space and bandwidth.
The compression is lossless in that all pixel intensities remain exactly the same after decompression.
However, some metadata in the MRC header were lost.
The original files before compression are available from EMPIAR EBI.

Compression was carried out by separating (“un-normalizing”) the gain.
The details of the method are described in
https://relion.readthedocs.io/en/release-3.1/Reference/MovieCompression.html#gain-normalised-movies.

Please apply the gain reference (e.g. hdMSP1/gain-reference.mrc) in the respective folder during processing.
Note that the movies in hdMSP1-dataset3 were grouped into three sets, which differ by the gain.

Original size:   36,122,534,732 kilobytes
Compressed size:  4,282,869,455 kilobytes
Contains:
  • micrographs - multiframe
  • picked particles - single frame - processed
1. Unaligned movies of MSP-1
Category:
micrographs - multiframe
Image format:
MRC
No. of images or tilt series:
3734
Image size:
(3838, 3710)
Pixel type:
32 BIT FLOAT
Pixel spacing:
(1.073, 1.073)
Details:
Unaligned, gain-corrected, 40-frame movies, recorded automatically with EPU, using K2 camera in counting mode on a Titan Krios microscope operated at 300 kV at a nominal magnification of 130 000, corresponding to a pixel size of 1.073 Å. The total electron dose per micrograph: ~64 e-/Å^2.
Files:
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2. Unaligned movies of hdMSP-1 (dataset 1)
Category:
micrographs - multiframe
Image format:
MRC
No. of images or tilt series:
1685
Image size:
(3838, 3710)
Pixel type:
32 BIT FLOAT
Pixel spacing:
(1.077, 1.077)
Details:
Unaligned, gain-corrected, 40-frame movies, recorded automatically with EPU, using K2 camera in counting mode on a Titan Krios microscope operated at 300 kV at a nominal magnification of 130 000, corresponding to a pixel size of 1.077 Å. The total electron dose per micrograph: ~60 e-/Å^2.
Datasets 1-4 were combined for reconstruction of hdMSP-1.
Files:
Loading...
3. Unaligned movies of hdMSP-1 (dataset 2)
Category:
micrographs - multiframe
Image format:
MRC
No. of images or tilt series:
3560
Image size:
(3838, 3710)
Pixel type:
32 BIT FLOAT
Pixel spacing:
(1.077, 1.077)
Details:
Unaligned, gain-corrected, 40-frame movies, recorded automatically with EPU, using K2 camera in counting mode on a Titan Krios microscope operated at 300 kV at a nominal magnification of 130 000, corresponding to a pixel size of 1.077 Å. The total electron dose per micrograph: ~60 e-/Å^2.
Datasets 1-4 were combined for reconstruction of hdMSP-1.
Files:
Loading...
4. Unaligned movies of hdMSP-1 (dataset 3)
Category:
micrographs - multiframe
Image format:
MRC
No. of images or tilt series:
5864
Image size:
(3838, 3710)
Pixel type:
32 BIT FLOAT
Pixel spacing:
(1.077, 1.077)
Details:
Unaligned, gain-corrected, 40-frame movies, recorded automatically with EPU, using K2 camera in counting mode on a Titan Krios microscope operated at 300 kV at a nominal magnification of 130 000, corresponding to a pixel size of 1.077 Å. The total electron dose per micrograph: ~60 e-/Å^2.
Datasets 1-4 were combined for reconstruction of hdMSP-1.
Files:
Loading...
5. Unaligned movies of hdMSP-1 (dataset 4)
Category:
micrographs - multiframe
Image format:
MRC
No. of images or tilt series:
1393
Image size:
(3838, 3710)
Pixel type:
32 BIT FLOAT
Pixel spacing:
(1.077, 1.077)
Details:
Unaligned, gain-corrected, 40-frame movies, recorded automatically with EPU, using K2 camera in counting mode on a Titan Krios microscope operated at 300 kV at a nominal magnification of 130 000, corresponding to a pixel size of 1.077 Å. The total electron dose per micrograph: ~60 e-/Å^2.
Datasets 1-4 were combined for reconstruction of hdMSP-1. Dataset 4 was collected at 15 degrees tilt.
Files:
Loading...
6. Final particle stack for hdMSP-1 conformation 1
Category:
picked particles - single frame - processed
Image format:
MRCS
No. of images or tilt series:
271763
Image size:
(288, 288)
Pixel type:
32 BIT FLOAT
Pixel spacing:
(1.077, 1.077)
Details:
Final 271,763 particle stack and corresponding starfile (converted from cryoSPARC particle file using USCF pyem) for hdMSP-1 (conformation 1); box size 288 pixels, 1.077 Å/pixel.
Files:
Loading...
7. Final particle stack for hdMSP-1 conformation 2
Category:
picked particles - single frame - processed
Image format:
MRCS
No. of images or tilt series:
182515
Image size:
(288, 288)
Pixel type:
32 BIT FLOAT
Pixel spacing:
(1.077, 1.077)
Details:
Final 182,515 particle stack and corresponding starfile (converted from cryoSPARC particle file using USCF pyem) for hdMSP-1 (conformation 2); box size 288 pixels, 1.077 Å/pixel.
Files:
Loading...
8. Final particle stack for MSP-1 main conformation
Category:
picked particles - single frame - processed
Image format:
MRCS
No. of images or tilt series:
141838
Image size:
(288, 288)
Pixel type:
32 BIT FLOAT
Pixel spacing:
(1.073, 1.073)
Details:
Final 141,838 particle stack and corresponding starfile (converted from cryoSPARC particle file using USCF pyem) for MSP-1 (main conformation); box size 288 pixels, 1.073 Å/pixel.
Files:
Loading...
9. Final particle stack for MSP-1 alternative conformation 1
Category:
picked particles - single frame - processed
Image format:
MRCS
No. of images or tilt series:
112939
Image size:
(288, 288)
Pixel type:
32 BIT FLOAT
Pixel spacing:
(1.073, 1.073)
Details:
Final 112,939 particle stack and corresponding starfile (converted from cryoSPARC particle file using USCF pyem) for MSP-1 (alternative conformation 1); box size 288 pixels, 1.073 Å/pixel.
Files:
Loading...
10. Final particle stack for MSP-1 alternative conformation 2
Category:
picked particles - single frame - processed
Image format:
MRCS
No. of images or tilt series:
118878
Image size:
(288, 288)
Pixel type:
32 BIT FLOAT
Pixel spacing:
(1.073, 1.073)
Details:
Final 118,878 particle stack and corresponding starfile (converted from cryoSPARC particle file using USCF pyem) for MSP-1 (alternative conformation 2); box size 288 pixels, 1.073 Å/pixel.
Files:
Loading...
11. Final particle stack for MSP-1 alternative conformation 3
Category:
picked particles - single frame - processed
Image format:
MRCS
No. of images or tilt series:
124774
Image size:
(288, 288)
Pixel type:
32 BIT FLOAT
Pixel spacing:
(1.073, 1.073)
Details:
Final 124,774 particle stack and corresponding starfile (converted from cryoSPARC particle file using USCF pyem) for MSP-1 (alternative conformation 3); box size 288 pixels, 1.073 Å/pixel.
Files:
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12. Final particle stack for MSP-1 alternative conformation 4
Category:
picked particles - single frame - processed
Image format:
MRCS
No. of images or tilt series:
116037
Image size:
(288, 288)
Pixel type:
32 BIT FLOAT
Pixel spacing:
(1.073, 1.073)
Details:
Final 116,037 particle stack and corresponding starfile (converted from cryoSPARC particle file using USCF pyem) for MSP-1 (alternative conformation 4); box size 288 pixels, 1.073 Å/pixel.
Files:
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13. Final particle stack for MSP-1 alternative conformation 5
Category:
picked particles - single frame - processed
Image format:
MRCS
No. of images or tilt series:
75620
Image size:
(288, 288)
Pixel type:
32 BIT FLOAT
Pixel spacing:
(1.073, 1.073)
Details:
Final 75,620 particle stack and corresponding starfile (converted from cryoSPARC particle file using USCF pyem) for MSP-1 (alternative conformation 5); box size 288 pixels, 1.073 Å/pixel.
Files:
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