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- EMDB-49778: Nucleosome from partially-engaged state of SRCAP-nucleosome compl... -

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Open data


ID or keywords:

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Basic information

Entry
Database: EMDB / ID: EMD-49778
TitleNucleosome from partially-engaged state of SRCAP-nucleosome complex (focused refinement)
Map data
Sample
  • Complex: SRCAP-nucleosome complex
    • Complex: Endogenous human SRCAP complex
KeywordsChromatin Remodeler / Snf2 family ATPase / histone exchange / H2A.Z / GENE REGULATION
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.9 Å
AuthorsLouder RK / Park G
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) United States
CitationJournal: To Be Published
Title: Structural divergence of H2A.Z-associated human chromatin remodelers SRCAP and TIP60
Authors: Park G / Patel AB / Wu C / Louder RK
History
DepositionMar 19, 2025-
Header (metadata) releaseApr 1, 2026-
Map releaseApr 1, 2026-
UpdateApr 1, 2026-
Current statusApr 1, 2026Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_49778.png

Downloads & links

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Map

FileDownload / File: emd_49778.map.gz / Format: CCP4 / Size: 216 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.03 Å/pix.
x 384 pix.
= 393.6 Å		1.03 Å/pix.
x 384 pix.
= 393.6 Å		1.03 Å/pix.
x 384 pix.
= 393.6 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.025 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.015
Minimum - Maximum-0.048236623 - 0.07563465
Average (Standard dev.)0.000040914743 (±0.0011194088)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions384384384
Spacing384384384
CellA=B=C: 393.59998 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_49778_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_49778_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_49778_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 : SRCAP-nucleosome complex

EntireName: SRCAP-nucleosome complex
Components
  • Complex: SRCAP-nucleosome complex
    • Complex: Endogenous human SRCAP complex

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Supramolecule #1: SRCAP-nucleosome complex

SupramoleculeName: SRCAP-nucleosome complex / type: complex / ID: 1 / Parent: 0
Details: Endogenous purified SRCAP bound to 106N32 nucleosome
Source (natural)Organism: Homo sapiens (human) / Strain: K-562 / Organ: BLOOD / Tissue: BONE MARROW / Organelle: NUCLEUS / Location in cell: NUCLEOPLASM

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Supramolecule #2: Endogenous human SRCAP complex

SupramoleculeName: Endogenous human SRCAP complex / type: complex / ID: 2 / Parent: 1
Source (natural)Organism: Homo sapiens (human) / Strain: K-562 / Organ: BLOOD / Tissue: BONE MARROW / Organelle: NUCLEUS / Location in cell: NUCLEOPLASM

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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: 7.6
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeTFS 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: 1.6 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: OTHER
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 24701
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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