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- EMDB-43621: Human PRC2 - RvLEAM(short) (1:6 molar ratio) -

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Open data


ID or keywords:

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Basic information

Entry
Database: EMDB / ID: EMD-43621
TitleHuman PRC2 - RvLEAM(short) (1:6 molar ratio)
Map data
Sample
  • Complex: Human polycomb-repressive complex 2 (PRC2)
Keywordspolycomb repressive complex 2 / RvLEAM / air-water-interface / REPLICATION
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.76 Å
AuthorsAbe KM / Li G / He Q / Grant T / Lim C
Funding support United States, 3 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)T32 GM130550 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R00GM131023 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)DP2GM150023 United States
CitationJournal: To Be Published
Title: Human PRC2 - RvLEAM(short) (1:6 molar ratio)
Authors: Abe KM / Li G / He Q / Grant T / Lim C
History
DepositionFeb 5, 2024-
Header (metadata) releaseSep 4, 2024-
Map releaseSep 4, 2024-
UpdateSep 4, 2024-
Current statusSep 4, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_43621.png

Downloads & links

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Map

FileDownload / File: emd_43621.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.06 Å/pix.
x 320 pix.
= 340.16 Å		1.06 Å/pix.
x 320 pix.
= 340.16 Å		1.06 Å/pix.
x 320 pix.
= 340.16 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.063 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.118
Minimum - Maximum-1.0919526 - 1.614613
Average (Standard dev.)0.00024539066 (±0.024643036)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions320320320
Spacing320320320
CellA=B=C: 340.15997 Å
α=β=γ: 90.0 °

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Supplemental data

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Additional map: #1

Fileemd_43621_additional_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_43621_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_43621_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 : Human polycomb-repressive complex 2 (PRC2)

EntireName: Human polycomb-repressive complex 2 (PRC2)
Components
  • Complex: Human polycomb-repressive complex 2 (PRC2)

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Supramolecule #1: Human polycomb-repressive complex 2 (PRC2)

SupramoleculeName: Human polycomb-repressive complex 2 (PRC2) / type: complex / ID: 1 / Parent: 0
Source (natural)Organism: Homo sapiens (human)

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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

Concentration0.33 mg/mL
BufferpH: 7.5
Component:
ConcentrationFormulaName
25.0 mMHEPESHEPES
150.0 mMNaClsodium chloride
1.0 mMTCEPTCEP
GridModel: C-flat-1.2/1.3 / Material: COPPER / Mesh: 300
VitrificationCryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TALOS ARCTICA
Specialist opticsEnergy filter - Slit width: 20 eV
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 70.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.0 µm
Sample stageCooling holder cryogen: NITROGEN
Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company

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Image processing

Startup modelType of model: NONE
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.76 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 206807
Initial angle assignmentType: NOT APPLICABLE
Final angle assignmentType: NOT APPLICABLE
FSC plot (resolution estimation)

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