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- EMDB-49327: Cryo-EM structure of Ro60/U-tailed 5S rRNA complex -

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Open data


ID or keywords:

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Basic information

Entry
Database: EMDB / ID: EMD-49327
TitleCryo-EM structure of Ro60/U-tailed 5S rRNA complex
Map datadeepEMhancer sharpened map
Sample
  • Complex: Ro60/U-tailed 5S rRNA complex
KeywordsRo60 autoantigen / RNA chaperone / RNA folding / RNA BINDING PROTEIN / RNA BINDING PROTEIN-RNA complex
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.5 Å
AuthorsNam H / Deme JC / Lea SM / Wolin SL
Funding support United States, 2 items
OrganizationGrant numberCountry
National Institutes of Health/National Cancer Institute (NIH/NCI)CCR Core Funding for Lea Group United States
National Institutes of Health/National Cancer Institute (NIH/NCI)CCR Core Funding for Wolin Group United States
CitationJournal: Cell(Cambridge,Mass.) / Year: 2026
Title: Mechanistic insights into RNA chaperoning by Ro60 and La autoantigens
Authors: Nam H / Deme JC / Sim S / Boccitto M / Lea SM / Wolin SL
History
DepositionFeb 20, 2025-
Header (metadata) releaseFeb 4, 2026-
Map releaseFeb 4, 2026-
UpdateFeb 4, 2026-
Current statusFeb 4, 2026Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_49327.png

Downloads & links

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Map

FileDownload / File: emd_49327.map.gz / Format: CCP4 / Size: 229.8 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationdeepEMhancer sharpened map
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.73 Å/pix.
x 392 pix.
= 286.944 Å		0.73 Å/pix.
x 392 pix.
= 286.944 Å		0.73 Å/pix.
x 392 pix.
= 286.944 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.732 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.06
Minimum - Maximum-0.015920265 - 2.0330548
Average (Standard dev.)0.0005795 (±0.015021772)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions392392392
Spacing392392392
CellA=B=C: 286.944 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_49327_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Additional map: unsharpened map

Fileemd_49327_additional_1.map
Annotationunsharpened map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Additional map: b-factor sharpened map

Fileemd_49327_additional_2.map
Annotationb-factor sharpened map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: half map 1

Fileemd_49327_half_map_1.map
Annotationhalf map 1
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: half map 2

Fileemd_49327_half_map_2.map
Annotationhalf map 2
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Ro60/U-tailed 5S rRNA complex

EntireName: Ro60/U-tailed 5S rRNA complex
Components
  • Complex: Ro60/U-tailed 5S rRNA complex

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Supramolecule #1: Ro60/U-tailed 5S rRNA complex

SupramoleculeName: Ro60/U-tailed 5S rRNA complex / 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

BufferpH: 8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: TFS FALCON 4i (4k x 4k) / Average electron dose: 53.7 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.8 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: NONE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.5 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 191412
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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