EMPIAR-11457
Cryo-electron tomography of ChAdOx spikes (AZD2816) [142 tilt series in MRC format]
Publication:

In situ structures of ChAdOx vaccine products reveal native prefusion spikes improved by HexaPro mutations

Ni T, Menconca L, Zhu Y, Howe A, Radecke J, Zhang P

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Related EMDB entry:
Deposited:
2023-03-10
Released:
2023-04-26
Last modified:
2023-04-26
Imageset size:
494.43 GB
Imageset DOI:
Experimental metadata:
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Contains:
  • tilt series
1. Cryo-electron tomography of ChAdOx spikes 2Pro mutant in situ
Category:
tilt series
Image format:
MRC
No. of images or tilt series:
142
Image size:
(5760, 4092)
Pixel type:
32 BIT FLOAT
Pixel spacing:
(2.18, 2.18)
Details:
Tilt-series were acquired using ThermoFisher Titan Krios microscopes operated at 300 keV, equipped with a K3 camera and Quantum energy filter in zeros-loss mode. The energy slit width was set to 20 eV. The tilt-series were collected with serialEM using a dose-symmetric scheme, starting from 0° with a 3° tilt increment by a group of 3, with an angular range from -60° to 60°. The accumulated exposure for each tilt-series was ~120 e-/Å2, with a defocus range between -2 and -5 µm. The micrographs have been motion-corrected and stacked using IMOD newstack command. The dataset contains the motion-corrected tilt-series, transformation matrix file (*.xf), local transformation file (*local), tilt angle (*tlt) and gold beads positions (*erase), which are generated from IMOD.
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