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- EMDB-52626: ESIBD structure of GroEL -

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ID or keywords:

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Basic information

Entry
Database: EMDB / ID: EMD-52626
TitleESIBD structure of GroEL
Map dataVolume Map (sharpened) from Non-Uniform Refinement Job
Sample
  • Complex: GroEL
    • Protein or peptide: GroEL
Keywordschaperonin / CHAPERONE
Function / homology
Function and homology information


coated vesicle / isotype switching to IgG isotypes / mitochondrial unfolded protein response / TFAP2A acts as a transcriptional repressor during retinoic acid induced cell differentiation / apolipoprotein A-I binding / lipopolysaccharide receptor complex / protein import into mitochondrial intermembrane space / high-density lipoprotein particle binding / migrasome / cysteine-type endopeptidase activator activity ...coated vesicle / isotype switching to IgG isotypes / mitochondrial unfolded protein response / TFAP2A acts as a transcriptional repressor during retinoic acid induced cell differentiation / apolipoprotein A-I binding / lipopolysaccharide receptor complex / protein import into mitochondrial intermembrane space / high-density lipoprotein particle binding / migrasome / cysteine-type endopeptidase activator activity / positive regulation of T cell mediated immune response to tumor cell / Mitochondrial protein import / positive regulation of macrophage activation / chaperonin ATPase / negative regulation of execution phase of apoptosis / cellular response to interleukin-7 / MyD88-dependent toll-like receptor signaling pathway / 'de novo' protein folding / biological process involved in interaction with symbiont / sperm plasma membrane / apoptotic mitochondrial changes / B cell activation / B cell proliferation / positive regulation of interferon-alpha production / DNA replication origin binding / positive regulation of interleukin-10 production / apolipoprotein binding / positive regulation of execution phase of apoptosis / response to unfolded protein / Mitochondrial unfolded protein response (UPRmt) / isomerase activity / chaperone-mediated protein complex assembly / clathrin-coated pit / positive regulation of interleukin-12 production / Mitochondrial protein degradation / response to cold / secretory granule / T cell activation / protein maturation / ATP-dependent protein folding chaperone / lipopolysaccharide binding / positive regulation of interleukin-6 production / positive regulation of type II interferon production / positive regulation of T cell activation / p53 binding / unfolded protein binding / sperm midpiece / single-stranded DNA binding / double-stranded RNA binding / protein-folding chaperone binding / protein folding / protein refolding / early endosome / mitochondrial inner membrane / protein stabilization / mitochondrial matrix / ubiquitin protein ligase binding / negative regulation of apoptotic process / enzyme binding / cell surface / ATP hydrolysis activity / protein-containing complex / mitochondrion / extracellular space / RNA binding / extracellular exosome / ATP binding / membrane / plasma membrane / cytoplasm / cytosol
Similarity search - Function
Chaperonin Cpn60, conserved site / Chaperonins cpn60 signature. / Chaperonin Cpn60/GroEL / GroEL-like equatorial domain superfamily / TCP-1-like chaperonin intermediate domain superfamily / GroEL-like apical domain superfamily / TCP-1/cpn60 chaperonin family / Chaperonin Cpn60/GroEL/TCP-1 family
Similarity search - Domain/homology
60 kDa heat shock protein, mitochondrial
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.8 Å
AuthorsBarrass SV / Esser TK / Mowry NJ / Eriksson L / Hruby J / Seeley LT / Drabbels M / Baker LA / Rauschenbach S / Lorenz UJ
Funding support Switzerland, United Kingdom, European Union, 6 items
OrganizationGrant numberCountry
Swiss National Science Foundation213773 Switzerland
Swiss National Science Foundation207842 Switzerland
UK Research and Innovation (UKRI)EP/V051474/1 United Kingdom
Biotechnology and Biological Sciences Research Council (BBSRC)BB/V019694/1 United Kingdom
H2020 Marie Curie Actions of the European Commission883387European Union
Wellcome Trust218482/Z/19/Z United Kingdom
CitationJournal: To Be Published
Title: Cryo-EM Sample Preparation Using Soft-landing Electrospray Ion Beam Deposition and Laser Flash Melting
Authors: Barrass SV / Esser TK / Mowry NJ / Eriksson L / Hruby J / Seeley LT / Drabbels M / Baker LA / Rauschenbach S / Lorenz UJ
History
DepositionJan 27, 2025-
Header (metadata) releaseFeb 18, 2026-
Map releaseFeb 18, 2026-
UpdateFeb 18, 2026-
Current statusFeb 18, 2026Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_52626.png

Downloads & links

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Map

FileDownload / File: emd_52626.map.gz / Format: CCP4 / Size: 166.4 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationVolume Map (sharpened) from Non-Uniform Refinement Job
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.83 Å/pix.
x 352 pix.
= 292.16 Å		0.83 Å/pix.
x 352 pix.
= 292.16 Å		0.83 Å/pix.
x 352 pix.
= 292.16 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.83 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.115
Minimum - Maximum-0.33671457 - 0.48514116
Average (Standard dev.)0.0027869982 (±0.024101753)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions352352352
Spacing352352352
CellA=B=C: 292.16 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_52626_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Additional map: Volume Map (unsharpened) from Non-Uniform Refinement Job

Fileemd_52626_additional_1.map
AnnotationVolume Map (unsharpened) from Non-Uniform Refinement Job
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half Map B from Non-Uniform Refinement Job

Fileemd_52626_half_map_1.map
AnnotationHalf Map B from Non-Uniform Refinement Job
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half Map A from Non-Uniform Refinement Job

Fileemd_52626_half_map_2.map
AnnotationHalf Map A from Non-Uniform Refinement Job
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : GroEL

EntireName: GroEL
Components
  • Complex: GroEL
    • Protein or peptide: GroEL

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Supramolecule #1: GroEL

SupramoleculeName: GroEL / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: GroEL

MacromoleculeName: GroEL / type: protein_or_peptide / ID: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
SequenceString: MLRLPTVFRQ MRPVSRVLAP HLTRAYAKDV KFGADARALM LQGVDLLADA VAVTMGPKGR TVIIEQSWGS PKVTKDGVTV AKSIDLKDKY KNIGAKLVQD VANNTNEEAG DGTTTATVLA RSIAKEGFEK ISKGANPVEI RRGVMLAVDA VIAELKKQSK PVTTPEEIAQ ...String:
MLRLPTVFRQ MRPVSRVLAP HLTRAYAKDV KFGADARALM LQGVDLLADA VAVTMGPKGR TVIIEQSWGS PKVTKDGVTV AKSIDLKDKY KNIGAKLVQD VANNTNEEAG DGTTTATVLA RSIAKEGFEK ISKGANPVEI RRGVMLAVDA VIAELKKQSK PVTTPEEIAQ VATISANGDK EIGNIISDAM KKVGRKGVIT VKDGKTLNDE LEIIEGMKFD RGYISPYFIN TSKGQKCEFQ DAYVLLSEKK ISSIQSIVPA LEIANAHRKP LVIIAEDVDG EALSTLVLNR LKVGLQVVAV KAPGFGDNRK NQLKDMAIAT GGAVFGEEGL TLNLEDVQPH DLGKVGEVIV TKDDAMLLKG KGDKAQIEKR IQEIIEQLDV TTSEYEKEKL NERLAKLSDG VAVLKVGGTS DVEVNEKKDR VTDALNATRA AVEEGIVLGG GCALLRCIPA LDSLTPANED QKIGIEIIKR TLKIPAMTIA KNAGVEGSLI VEKIMQSSSE VGYDAMAGDF VNMVEKGIID PTKVVRTALL DAAGVASLLT TAEVVVTEIP KEEKDPGMGA MGGMGGGMGG GMF

UniProtKB: 60 kDa heat shock protein, mitochondrial

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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 / Component - Concentration: 200.0 mM / Component - Formula: NH4OCOCH3 / Component - Name: Ammonium Acetate / Details: 200 mM Ammonium Acetate
GridModel: UltrAuFoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Support film - Material: GOLD / Support film - topology: HOLEY
VitrificationCryogen name: OTHER
DetailsGroEL was deposited onto a cryo-EM grid using soft-landing electrospray ion beam deposition. 50 nm of amorphous ice was deposited onto the sample.

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Electron microscopy

MicroscopeTFS KRIOS
Specialist opticsEnergy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Number grids imaged: 1 / Number real images: 4004 / Average electron dose: 40.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 105000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 904984
CTF correctionSoftware - Name: cryoSPARC (ver. 4.5) / Software - details: Patch CTF / Type: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: NONE
Final reconstructionApplied symmetry - Point group: D7 (2x7 fold dihedral) / Resolution.type: BY AUTHOR / Resolution: 4.8 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 4.5) / Software - details: Non-uniform refinement / Number images used: 75264
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC (ver. 4.5) / Software - details: Ab-initio
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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