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- EMDB-17425: Structure average of GroEL14 complexes found in the cytosol of Es... -

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Basic information

Entry
Database: EMDB / ID: EMD-17425
TitleStructure average of GroEL14 complexes found in the cytosol of Escherichia coli overexpressing GroEL obtained by cryo electron tomography
Map data
Sample
  • Complex: (GroEL)14 chaperonin
    • Protein or peptide: Chaperonin GroEL
  • Ligand: ADENOSINE-5'-TRIPHOSPHATE
  • Ligand: MAGNESIUM ION
  • Ligand: POTASSIUM ION
  • Ligand: ADENOSINE-5'-DIPHOSPHATE
  • Ligand: water
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 / chaperone cofactor-dependent protein refolding / positive regulation of interferon-alpha production / isomerase activity / ATP-dependent protein folding chaperone / positive regulation of interleukin-6 production / positive regulation of type II interferon production ...GroEL-GroES complex / chaperonin ATPase / mitochondrial unfolded protein response / protein import into mitochondrial intermembrane space / chaperone cofactor-dependent protein refolding / positive regulation of interferon-alpha production / isomerase activity / ATP-dependent protein folding chaperone / positive regulation of interleukin-6 production / positive regulation of type II interferon production / unfolded protein binding / positive regulation of T cell activation / protein-folding chaperone binding / response to heat / protein refolding / ATP binding
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
Biological speciesEscherichia coli BL21(DE3) (bacteria)
Methodsubtomogram averaging / cryo EM / Resolution: 9.6 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
DepositionMay 23, 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_17425.png

Downloads & links

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Map

FileDownload / File: emd_17425.map.gz / Format: CCP4 / Size: 8 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
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AxesZ (Sec.)Y (Row.)X (Col.)
3.02 Å/pix.
x 128 pix.
= 386.56 Å		3.02 Å/pix.
x 128 pix.
= 386.56 Å		3.02 Å/pix.
x 128 pix.
= 386.56 Å

Surface

Projections

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Images are generated by Spider.

Voxel sizeX=Y=Z: 3.02 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.213
Minimum - Maximum-0.45236892 - 0.70260483
Average (Standard dev.)-0.00969468 (±0.06709028)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions128128128
Spacing128128128
CellA=B=C: 386.56 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_17425_msk_1.map
Projections & Slices
AxesZYX

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Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_17425_half_map_1.map
Projections & Slices
AxesZYX

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Histogram

Histogram (log scale)

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Half map: #1

Fileemd_17425_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 : (GroEL)14 chaperonin

EntireName: (GroEL)14 chaperonin
Components
  • Complex: (GroEL)14 chaperonin
    • Protein or peptide: Chaperonin GroEL
  • Ligand: ADENOSINE-5'-TRIPHOSPHATE
  • Ligand: MAGNESIUM ION
  • Ligand: POTASSIUM ION
  • Ligand: ADENOSINE-5'-DIPHOSPHATE
  • Ligand: water

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Supramolecule #1: (GroEL)14 chaperonin

SupramoleculeName: (GroEL)14 chaperonin / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Escherichia coli BL21(DE3) (bacteria)

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Macromolecule #1: Chaperonin GroEL

MacromoleculeName: Chaperonin GroEL / type: protein_or_peptide / ID: 1 / Number of copies: 14 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli BL21(DE3) (bacteria)
Molecular weightTheoretical: 57.260504 KDa
Recombinant expressionOrganism: Escherichia coli BL21(DE3) (bacteria)
SequenceString: AAKDVKFGND ARVKMLRGVN VLADAVKVTL GPKGRNVVLD KSFGAPTITK DGVSVAREIE LEDKFENMGA QMVKEVASKA NDAAGDGTT TATVLAQAII TEGLKAVAAG MNPMDLKRGI DKAVTAAVEE LKALSVPCSD SKAIAQVGTI SANSDETVGK L IAEAMDKV ...String:
AAKDVKFGND ARVKMLRGVN VLADAVKVTL GPKGRNVVLD KSFGAPTITK DGVSVAREIE LEDKFENMGA QMVKEVASKA NDAAGDGTT TATVLAQAII TEGLKAVAAG MNPMDLKRGI DKAVTAAVEE LKALSVPCSD SKAIAQVGTI SANSDETVGK L IAEAMDKV GKEGVITVED GTGLQDELDV VEGMQFDRGY LSPYFINKPE TGAVELESPF ILLADKKISN IREMLPVLEA VA KAGKPLL IIAEDVEGEA LATLVVNTMR GIVKVAAVKA PGFGDRRKAM LQDIATLTGG TVISEEIGME LEKATLEDLG QAK RVVINK DTTTIIDGVG EEAAIQGRVA QIRQQIEEAT SDYDREKLQE RVAKLAGGVA VIKVGAATEV EMKEKKARVE DALH ATRAA VEEGVVAGGG VALIRVASKL ADLRGQNEDQ NVGIKVALRA MEAPLRQIVL NCGEEPSVVA NTVKGGDGNY GYNAA TEEY GNMIDMGILD PTKVTRSALQ YAASVAGLMI TTECMVTDLP KNDAADLGAA GGMGGMGGMG GMM

UniProtKB: Chaperonin GroEL

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Macromolecule #2: ADENOSINE-5'-TRIPHOSPHATE

MacromoleculeName: ADENOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 2 / Number of copies: 7 / Formula: ATP
Molecular weightTheoretical: 507.181 Da
Chemical component information

ChemComp-ATP:
ADENOSINE-5'-TRIPHOSPHATE / ATP, energy-carrying molecule*YM

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Macromolecule #3: MAGNESIUM ION

MacromoleculeName: MAGNESIUM ION / type: ligand / ID: 3 / Number of copies: 14 / Formula: MG
Molecular weightTheoretical: 24.305 Da

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Macromolecule #4: POTASSIUM ION

MacromoleculeName: POTASSIUM ION / type: ligand / ID: 4 / Number of copies: 14 / Formula: K
Molecular weightTheoretical: 39.098 Da

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Macromolecule #5: ADENOSINE-5'-DIPHOSPHATE

MacromoleculeName: ADENOSINE-5'-DIPHOSPHATE / type: ligand / ID: 5 / Number of copies: 7 / Formula: ADP
Molecular weightTheoretical: 427.201 Da
Chemical component information

ChemComp-ADP:
ADENOSINE-5'-DIPHOSPHATE / ADP, energy-carrying molecule*YM

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Macromolecule #6: water

MacromoleculeName: water / type: ligand / ID: 6 / Number of copies: 70 / Formula: HOH
Molecular weightTheoretical: 18.015 Da
Chemical component information

ChemComp-HOH:
WATER

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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 / Details: LB medium
VitrificationCryogen name: ETHANE-PROPANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 3.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 4.0 µm / Nominal defocus min: 2.0 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Final reconstructionApplied symmetry - Point group: C7 (7 fold cyclic) / Resolution.type: BY AUTHOR / Resolution: 9.6 Å / Resolution method: FSC 0.143 CUT-OFF / Number subtomograms used: 12421
ExtractionNumber tomograms: 62 / Number images used: 111921 / Software - Name: IMOD
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.0)
FSC plot (resolution estimation)

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