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- EMDB-43239: NPM2-H1.8 isolated from Xenopus egg extract (Bent form) -

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Open data


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Basic information

Entry
Database: EMDB / ID: EMD-43239
TitleNPM2-H1.8 isolated from Xenopus egg extract (Bent form)
Map data
Sample
  • Cell: NPM2 complexed with H1.8
    • Protein or peptide: Nucleoplasmin isoform X1
KeywordsH1 / Xenopus egg extract / MagIC-cryo-EM / Histone chaperone / CHAPERONE
Function / homology
Function and homology information


single fertilization / positive regulation of DNA replication / histone binding / chromatin remodeling / chromatin binding / nucleolus / RNA binding / nucleoplasm / cytoplasm
Similarity search - Function
Nucleoplasmin core domain / Nucleoplasmin core domain superfamily / Nucleoplasmin/nucleophosmin domain / Nucleoplasmin family
Similarity search - Domain/homology
Nucleoplasmin isoform X1
Similarity search - Component
Biological speciesXenopus laevis (African clawed frog)
Methodsingle particle reconstruction / cryo EM / Resolution: 5.9 Å
AuthorsArimura Y / Funabiki H
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35GM132111 United States
CitationJournal: Elife / Year: 2024
Title: MagIC-Cryo-EM: Structural determination on magnetic beads for scarce macromolecules in heterogeneous samples
Authors: Arimura Y / Konishi HA / Funabiki H
History
DepositionJan 2, 2024-
Header (metadata) releaseDec 11, 2024-
Map releaseDec 11, 2024-
UpdateDec 11, 2024-
Current statusDec 11, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_43239.png

Downloads & links

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Map

FileDownload / File: emd_43239.map.gz / Format: CCP4 / Size: 19.4 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.08 Å/pix.
x 172 pix.
= 185.76 Å		1.08 Å/pix.
x 172 pix.
= 185.76 Å		1.08 Å/pix.
x 172 pix.
= 185.76 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.08 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.035
Minimum - Maximum-0.08605643 - 0.4309373
Average (Standard dev.)0.0006308064 (±0.013545994)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions172172172
Spacing172172172
CellA=B=C: 185.76001 Å
α=β=γ: 90.0 °

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Supplemental data

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Additional map: #1

Fileemd_43239_additional_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_43239_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_43239_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 : NPM2 complexed with H1.8

EntireName: NPM2 complexed with H1.8
Components
  • Cell: NPM2 complexed with H1.8
    • Protein or peptide: Nucleoplasmin isoform X1

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Supramolecule #1: NPM2 complexed with H1.8

SupramoleculeName: NPM2 complexed with H1.8 / type: cell / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Xenopus laevis (African clawed frog)

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Macromolecule #1: Nucleoplasmin isoform X1

MacromoleculeName: Nucleoplasmin isoform X1 / type: protein_or_peptide / ID: 1 / Number of copies: 5 / Enantiomer: LEVO
Source (natural)Organism: Xenopus laevis (African clawed frog)
Molecular weightTheoretical: 21.949467 KDa
SequenceString: MASTVSNTSK LEKPVSLIWG CELNEQNKTF EFKVEDDEEK CEHQLALRTV CLGDKAKDEF HIVEIVTQEE GAEKSVPIAT LKPSILPMA TMVGIELTPP VTFRLKAGSG PLYISGQHVA MEEDYSWAEE EDEGEAEGEE EEEEEEDQES PPKAVKRPAA T KKAGQAKK ...String:
MASTVSNTSK LEKPVSLIWG CELNEQNKTF EFKVEDDEEK CEHQLALRTV CLGDKAKDEF HIVEIVTQEE GAEKSVPIAT LKPSILPMA TMVGIELTPP VTFRLKAGSG PLYISGQHVA MEEDYSWAEE EDEGEAEGEE EEEEEEDQES PPKAVKRPAA T KKAGQAKK KLDKEDESSE EDSPTKKGKG AGRGRKPAAK K

UniProtKB: Nucleoplasmin isoform X1

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation statecell

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Sample preparation

BufferpH: 7.4
Details: 10mM HEPES-KOH (pH 7.4), 30 mM KCl, 1 mM EGTA, 10 ng/microL leupeptin, 10 ng/microL pepstatin, 10 ng/microL chymostatin, 1 mM sodium butyrate, 1 mM beta-glycerophosphate, trehalose, and 1,6-hexanediol
GridModel: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Support film - Material: GRAPHENE
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recording#0 - Image recording ID: 1 / #0 - Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / #0 - Average electron dose: 45.3 e/Å2 / #1 - Image recording ID: 2 / #1 - Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / #1 - Average electron dose: 51.92 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 3.5 µm / Nominal defocus min: 1.5 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Image recording ID1
Startup modelType of model: NONE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 5.9 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 4.4) / Number images used: 35684
Initial angle assignmentType: ANGULAR RECONSTITUTION / Software - Name: cryoSPARC (ver. 4.4)
Final angle assignmentType: ANGULAR RECONSTITUTION / Software - Name: cryoSPARC (ver. 4.4)
FSC plot (resolution estimation)

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