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- EMDB-17560: In situ structure average of GroEL7-GroES7 chamber with encapsula... -

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Basic information

Entry
Database: EMDB / ID: EMD-17560
TitleIn situ structure average of GroEL7-GroES7 chamber with encapsulated, ordered substrate in Escherichia coli cytosol obtained by cryo electron tomography
Map data
Sample
  • Complex: GroEL7-GroES7 subcomplex
    • Protein or peptide: GroEL
    • Protein or peptide: GroES
KeywordsChaperonin / Folding cage / proteostasis / heat shock / ATPase / CHAPERONE
Function / homology
Function and homology information


GroEL-GroES complex / chaperonin ATPase / mitochondrial unfolded protein response / protein import into mitochondrial intermembrane space / virion assembly / chaperone cofactor-dependent protein refolding / positive regulation of interferon-alpha production / protein folding chaperone / isomerase activity / ATP-dependent protein folding chaperone ...GroEL-GroES complex / chaperonin ATPase / mitochondrial unfolded protein response / protein import into mitochondrial intermembrane space / virion assembly / chaperone cofactor-dependent protein refolding / positive regulation of interferon-alpha production / protein folding chaperone / isomerase activity / ATP-dependent protein folding chaperone / response to radiation / positive regulation of interleukin-6 production / positive regulation of type II interferon production / unfolded protein binding / protein folding / positive regulation of T cell activation / protein-folding chaperone binding / response to heat / protein refolding / magnesium ion binding / ATP hydrolysis activity / ATP binding / identical protein binding / membrane / metal ion binding / cytosol
Similarity search - Function
Chaperonin GroES, conserved site / Chaperonins cpn10 signature. / Chaperonin 10 Kd subunit / GroES chaperonin family / GroES chaperonin superfamily / Chaperonin 10 Kd subunit / Chaperonin Cpn60, conserved site / Chaperonins cpn60 signature. / Chaperonin Cpn60/GroEL / GroEL-like equatorial domain superfamily ...Chaperonin GroES, conserved site / Chaperonins cpn10 signature. / Chaperonin 10 Kd subunit / GroES chaperonin family / GroES chaperonin superfamily / Chaperonin 10 Kd subunit / 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 / GroES-like superfamily
Similarity search - Domain/homology
Chaperonin GroEL / Co-chaperonin GroES
Similarity search - Component
Biological speciesEscherichia coli BL21(DE3) (bacteria)
Methodsubtomogram averaging / cryo EM / Resolution: 15.2 Å
AuthorsWagner J / Caravajal AI / Beck F / Bracher A / Wan W / Bohn S / Koerner R / Baumeister W / Fernandez-Busnadiego R / Hartl FU
Funding support1 items
OrganizationGrant numberCountry
Not funded
CitationJournal: Nature / Year: 2024
Title: Visualizing chaperonin function in situ by cryo-electron tomography
Authors: Wagner J / Caravajal AI / Beck F / Bracher A / Wan W / Bohn S / Koerner R / Baumeister W / Fernandez-Busnadiego R / Hartl FU
History
DepositionJun 5, 2023-
Header (metadata) releaseJul 3, 2024-
Map releaseJul 3, 2024-
UpdateJul 3, 2024-
Current statusJul 3, 2024Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_17560.png

Downloads & links

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Map

FileDownload / File: emd_17560.map.gz / Format: CCP4 / Size: 8 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 3.52 Å
Density
Contour LevelBy AUTHOR: 0.733
Minimum - Maximum-0.7202391 - 1.7795112
Average (Standard dev.)0.0021097253 (±0.16796976)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions128128128
Spacing128128128
CellA=B=C: 450.56 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_17560_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_17560_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_17560_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 : GroEL7-GroES7 subcomplex

EntireName: GroEL7-GroES7 subcomplex
Components
  • Complex: GroEL7-GroES7 subcomplex
    • Protein or peptide: GroEL
    • Protein or peptide: GroES

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Supramolecule #1: GroEL7-GroES7 subcomplex

SupramoleculeName: GroEL7-GroES7 subcomplex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Details: subtomograms of GroEL14-GroES14 and GroEL14-GroES7 complexes in E. coli cytosol were aligned so that GroEL7-GroES7 subcomplexes with density for encapsulated ordered substrate match
Source (natural)Organism: Escherichia coli BL21(DE3) (bacteria)

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Macromolecule #1: GroEL

MacromoleculeName: GroEL / type: protein_or_peptide / ID: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli BL21(DE3) (bacteria)
SequenceString: AAKDVKFGND ARVKMLRGVN VLADAVKVTL GPKGRNVVLD KSFGAPTITK DGVSVAREI ELEDKFENMG AQMVKEVASK ANDAAGDGTT TATVLAQAII TEGLKAVAAG MNPMDLKRGI DKAVTAAVE ELKALSVPCS DSKAIAQVGT ISANSDETVG KLIAEAMDKV ...String:
AAKDVKFGND ARVKMLRGVN VLADAVKVTL GPKGRNVVLD KSFGAPTITK DGVSVAREI ELEDKFENMG AQMVKEVASK ANDAAGDGTT TATVLAQAII TEGLKAVAAG MNPMDLKRGI DKAVTAAVE ELKALSVPCS DSKAIAQVGT ISANSDETVG KLIAEAMDKV GKEGVITVED G TGLQDELD VVEGMQFDRG YLSPYFINKP ETGAVELESP FILLADKKIS NIREMLPVLE AV AKAGKPL LIIAEDVEGE ALATLVVNTM RGIVKVAAVK APGFGDRRKA MLQDIATLTG GTV ISEEIG MELEKATLED LGQAKRVVIN KDTTTIIDGV GEEAAIQGRV AQIRQQIEEA TSDY DREKL QERVAKLAGG VAVIKVGAAT EVEMKEKKAR VEDALHATRA AVEEGVVAGG GVALI RVAS KLADLRGQNE DQNVGIKVAL RAMEAPLRQI VLNCGEEPSV VANTVKGGDG NYGYNA ATE EYGNMIDMGI LDPTKVTRSA LQYAASVAGL MITTECMVTD LPKNDAADLG AAGGMGG MG GMGGMM

UniProtKB: Chaperonin GroEL

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Macromolecule #2: GroES

MacromoleculeName: GroES / type: protein_or_peptide / ID: 2 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli BL21(DE3) (bacteria)
SequenceString:
MNIRPLHDRV IVKRKEVETK SAGGIVLTGS AAAKSTRGEV LAVGNGRILE NGEVKPLDVK VGDIVIFND GYGVKSEKID NEEVLIMSES DILAIVEA

UniProtKB: Co-chaperonin GroES

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Experimental details

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Structure determination

Methodcryo EM
Processingsubtomogram averaging
Aggregation statecell

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Sample preparation

BufferpH: 7.4
VitrificationCryogen name: ETHANE-PROPANE
DetailsVitrified E. coli Bl21 (DE3) cells

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 3.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 70.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 5.0 µm / Nominal defocus min: 2.5 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 15.2 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: STOPGAP / Number subtomograms used: 12255
ExtractionNumber tomograms: 216 / Number images used: 125860
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION
FSC plot (resolution estimation)

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