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- EMDB-34206: Cryo-EM structure of PRC1 bound to unmodified nucleosome -

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Basic information

Entry
Database: EMDB / ID: EMD-34206
TitleCryo-EM structure of PRC1 bound to unmodified nucleosome
Map data
Sample
  • Complex: Complex of PRC1 and unmodified nucleosome
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.48 Å
AuthorsAi HS / Zebin T / Zhiheng D / Jiakun T / Liying Z / Jia-Bin L / Man P / Liu L
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)22137005, 81621002, 21977090 China
CitationJournal: Chem / Year: 2023
Title: Synthetic E2-Ub-nucleosome conjugates for studying nucleosome ubiquitination.
Authors: Ai HS / Tong Z / Deng Z / Tian J / Zhang L / Sun M / Du Y / Xu Z / Shi Q / Liang L / Zheng Q / Li JB / Pan M / Liu L
History
DepositionSep 2, 2022-
Header (metadata) releaseApr 12, 2023-
Map releaseApr 12, 2023-
UpdateApr 12, 2023-
Current statusApr 12, 2023Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_34206.png

Downloads & links

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Map

FileDownload / File: emd_34206.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.07 Å/pix.
x 256 pix.
= 274.944 Å		1.07 Å/pix.
x 256 pix.
= 274.944 Å		1.07 Å/pix.
x 256 pix.
= 274.944 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.074 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.01
Minimum - Maximum-0.016418448 - 0.04559029
Average (Standard dev.)0.00022114832 (±0.0019109168)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 274.944 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_34206_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_34206_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_34206_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Complex of PRC1 and unmodified nucleosome

EntireName: Complex of PRC1 and unmodified nucleosome
Components
  • Complex: Complex of PRC1 and unmodified nucleosome

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Supramolecule #1: Complex of PRC1 and unmodified nucleosome

SupramoleculeName: Complex of PRC1 and unmodified nucleosome / type: complex / ID: 1 / Chimera: Yes / Parent: 0
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 230 kDa/nm

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.5
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.0 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.48 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 25647
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: ANGULAR RECONSTITUTION

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