EMD-9055
CryoEM structure of human enterovirus D68 expanded 1 particle (pH 6.5, 4 degrees Celsius, 3 min)
EMD-9055
Single-particle3.46 Å
Deposition: 27/08/2018Map released: 19/12/2018
Last modified: 09/01/2019
Buffer
pH: 6.5
Details: Phosphate citrate buffer
Details: Phosphate citrate buffer
Grid
Mesh: 400
Material: COPPER
Material: COPPER
Pretreatment
Support Film [1]
| Material | Topology | Thickness |
|---|---|---|
| CARBON | CONTINUOUS | - |
Vitrification
Cryogen name: ETHANE
Chamber humidity: 80%
Chamber temperature: 298 K
Instrument: GATAN CRYOPLUNGE 3
Chamber humidity: 80%
Chamber temperature: 298 K
Instrument: GATAN CRYOPLUNGE 3
Microscope: FEI TITAN KRIOS
Illumination mode: FLOOD BEAM
Imaging mode: BRIGHT FIELD
Electron source: FIELD EMISSION GUN
Acceleration voltage: 300 kV
C2 aperture diameter: 100.0 µm
Nominal CS: 2.7 mm
Nominal defocus: 0.5 µm - 8.5 µm
Nominal magnification: 81000.0
Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Cooling holder cryogen: NITROGEN
Alignment procedure: COMA FREE
Illumination mode: FLOOD BEAM
Imaging mode: BRIGHT FIELD
Electron source: FIELD EMISSION GUN
Acceleration voltage: 300 kV
C2 aperture diameter: 100.0 µm
Nominal CS: 2.7 mm
Nominal defocus: 0.5 µm - 8.5 µm
Nominal magnification: 81000.0
Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Cooling holder cryogen: NITROGEN
Alignment procedure: COMA FREE
Specialist optics
Energy filter
Image Recording
[1]
Detector model:
GATAN K2 SUMMIT (4k x 4k)
Detector mode: COUNTING
Dimensions: 3710 pixel x 3838 pixel
Sampling interval: 5.0 µm
Number of grids: 1
Number of real images: 357
Average exposure time: 10.5 s
Average electron dose per image: 28.0 e/Å2
Detector mode: COUNTING
Dimensions: 3710 pixel x 3838 pixel
Sampling interval: 5.0 µm
Number of grids: 1
Number of real images: 357
Average exposure time: 10.5 s
Average electron dose per image: 28.0 e/Å2
Final
reconstruction
Resolution: 3.46
Å
(
BY AUTHOR)
Resolution method: FSC 0.143 CUT-OFF
Number of images used: 4968
Algorithm: FOURIER SPACE
Resolution method: FSC 0.143 CUT-OFF
Number of images used: 4968
Algorithm: FOURIER SPACE
⌯ Applied Symmetry
Point group:
I
Software
[1]
| Name | Version | Details |
|---|---|---|
| Jspr | - | - |
Startup model
[1]
⦨ Initial angle
assignment
⦩ Final angle assignment
Particle selection
[1]
| Selected | Ref. model | Method | Software | Details |
|---|---|---|---|---|
| 39022 | - | - | - | - |
Final 3D classification
Details:
33863 particles were selected after 2D classification. Subsequently, 3D classification yielded full native virions, A-particles and expanded 1 particles.
Software
[1]
| Name | Version | Details |
|---|---|---|
| RELION | 2.1.0 | - |
CTF correction
Details: On-the-fly CTF correction during 2D alignment and 3D reconstruction
Software
[1]
| Name | Version | Details |
|---|---|---|
| Jspr | - | - |
Format: CCP4
Data type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotation details: Sharpened map in which the inner density is masked out
Data type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotation details: Sharpened map in which the inner density is masked out
⬡ Geometry
| X | Y | Z | |
|---|---|---|---|
| Origin | 0 | 0 | 0 |
| Dimensions (px) | 264 | 264 | 264 |
| Dimensions (Å) | 456.72 | 456.72 | 456.72 |
| Voxel size (Å) | 1.73 | 1.73 | 1.73 |
Contour list
| Primary | Level | Source |
|---|---|---|
| True | 18.7 | AUTHOR |
