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- EMDB-37294: Cryo-EM structure of the yeast TOM core complex (from TOM-TIM23 c... -

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Basic information

Entry
Database: EMDB / ID: EMD-37294
TitleCryo-EM structure of the yeast TOM core complex (from TOM-TIM23 complex)
Map data
Sample
  • Complex: TOM-TIM23 complex
    • Protein or peptide: Mitochondrial import receptor subunit TOM40
    • Protein or peptide: Mitochondrial import receptor subunit TOM22
    • Protein or peptide: Mitochondrial import receptor subunit TOM5
    • Protein or peptide: Mitochondrial import receptor subunit TOM6
    • Protein or peptide: Mitochondrial import receptor subunit TOM7
  • Ligand: (2R)-3-{[(S)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-(tetradecanoyloxy)propyl tetradecanoate
KeywordsTOM complex / TRANSLOCASE
Function / homology
Function and homology information


mitochondrial outer membrane translocase complex assembly / mitochondrial outer membrane translocase complex / protein import into mitochondrial matrix / protein transmembrane transport / protein targeting to mitochondrion / porin activity / pore complex / protein insertion into mitochondrial outer membrane / protein transmembrane transporter activity / monoatomic ion transport ...mitochondrial outer membrane translocase complex assembly / mitochondrial outer membrane translocase complex / protein import into mitochondrial matrix / protein transmembrane transport / protein targeting to mitochondrion / porin activity / pore complex / protein insertion into mitochondrial outer membrane / protein transmembrane transporter activity / monoatomic ion transport / mitochondrial intermembrane space / mitochondrial outer membrane / mitochondrion / cytosol
Similarity search - Function
Mitochondrial import receptor subunit Tom6 / Mitochondrial import receptor subunit Tom22, fungi / Mitochondrial import receptor subunit Tom6, fungal / Mitochondrial import receptor subunit Tom40, fungi / Mitochondrial import receptor subunit Tom22 / Mitochondrial import receptor subunit TOM7 / Mitochondrial import receptor subunit Tom22 / TOM7 family / Mitochondrial outer membrane translocase complex, subunit Tom5 / Mitochondrial import receptor subunit or translocase ...Mitochondrial import receptor subunit Tom6 / Mitochondrial import receptor subunit Tom22, fungi / Mitochondrial import receptor subunit Tom6, fungal / Mitochondrial import receptor subunit Tom40, fungi / Mitochondrial import receptor subunit Tom22 / Mitochondrial import receptor subunit TOM7 / Mitochondrial import receptor subunit Tom22 / TOM7 family / Mitochondrial outer membrane translocase complex, subunit Tom5 / Mitochondrial import receptor subunit or translocase / Tom40 / Eukaryotic porin/Tom40 / Eukaryotic porin / Porin domain superfamily
Similarity search - Domain/homology
Mitochondrial import receptor subunit TOM40 / Mitochondrial import receptor subunit TOM6 / Mitochondrial import receptor subunit TOM22 / Mitochondrial import receptor subunit TOM7 / Mitochondrial import receptor subunit TOM5
Similarity search - Component
Biological speciesSaccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.4 Å
AuthorsWang Q / Guan ZY / Zhuang JJ / Huang R / Yin P
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC) China
CitationJournal: Cell Discov / Year: 2024
Title: The architecture of substrate-engaged TOM-TIM23 supercomplex reveals preprotein proximity sites for mitochondrial protein translocation.
Authors: Qiang Wang / Jinjin Zhuang / Rui Huang / Zeyuan Guan / Ling Yan / Sixing Hong / Liying Zhang / Can Huang / Zhu Liu / Ping Yin /
History
DepositionAug 27, 2023-
Header (metadata) releaseFeb 28, 2024-
Map releaseFeb 28, 2024-
UpdateFeb 28, 2024-
Current statusFeb 28, 2024Processing site: PDBc / Status: Released

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Structure visualization

Supplemental images

emd_37294.png

Downloads & links

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Map

FileDownload / File: emd_37294.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.07 Å/pix.
x 360 pix.
= 385.2 Å		1.07 Å/pix.
x 360 pix.
= 385.2 Å		1.07 Å/pix.
x 360 pix.
= 385.2 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.07 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.3
Minimum - Maximum-0.22308047 - 0.6630837
Average (Standard dev.)0.0019293531 (±0.023379887)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions360360360
Spacing360360360
CellA=B=C: 385.2 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #1

Fileemd_37294_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_37294_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 : TOM-TIM23 complex

EntireName: TOM-TIM23 complex
Components
  • Complex: TOM-TIM23 complex
    • Protein or peptide: Mitochondrial import receptor subunit TOM40
    • Protein or peptide: Mitochondrial import receptor subunit TOM22
    • Protein or peptide: Mitochondrial import receptor subunit TOM5
    • Protein or peptide: Mitochondrial import receptor subunit TOM6
    • Protein or peptide: Mitochondrial import receptor subunit TOM7
  • Ligand: (2R)-3-{[(S)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-(tetradecanoyloxy)propyl tetradecanoate

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Supramolecule #1: TOM-TIM23 complex

SupramoleculeName: TOM-TIM23 complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5
Source (natural)Organism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)

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Macromolecule #1: Mitochondrial import receptor subunit TOM40

MacromoleculeName: Mitochondrial import receptor subunit TOM40 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Molecular weightTheoretical: 42.071141 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
SequenceString: MSAPTPLAEA SQIPTIPALS PLTAKQSKGN FFSSNPISSF VVDTYKQLHS HRQSLELVNP GTVENLNKEV SRDVFLSQYF FTGLRADLN KAFSMNPAFQ TSHTFSIGSQ ALPKYAFSAL FANDNLFAQG NIDNDLSVSG RLNYGWDKKN ISKVNLQISD G QPTMCQLE ...String:
MSAPTPLAEA SQIPTIPALS PLTAKQSKGN FFSSNPISSF VVDTYKQLHS HRQSLELVNP GTVENLNKEV SRDVFLSQYF FTGLRADLN KAFSMNPAFQ TSHTFSIGSQ ALPKYAFSAL FANDNLFAQG NIDNDLSVSG RLNYGWDKKN ISKVNLQISD G QPTMCQLE QDYQASDFSV NVKTLNPSFS EKGEFTGVAV ASFLQSVTPQ LALGLETLYS RTDGSAPGDA GVSYLTRYVS KK QDWIFSG QLQANGALIA SLWRKVAQNV EAGIETTLQA GMVPITDPLM GTPIGIQPTV EGSTTIGAKY EYRQSVYRGT LDS NGKVAC FLERKVLPTL SVLFCGEIDH FKNDTKIGCG LQFETAGNQE LLMLQQGLDA DGNPLQALPQ L

UniProtKB: Mitochondrial import receptor subunit TOM40

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Macromolecule #2: Mitochondrial import receptor subunit TOM22

MacromoleculeName: Mitochondrial import receptor subunit TOM22 / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Molecular weightTheoretical: 16.801373 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
SequenceString:
MVELTEIKDD VVQLDEPQFS RNQAIVEEKA SATNNDVVDD EDDSDSDFED EFDENETLLD RIVALKDIVP PGKRQTISNF FGFTSSFVR NAFTKSGNLA WTLTTTALLL GVPLSLSILA EQQLIEMEKT FDLQSDANNI LAQGEKDAAA TAN

UniProtKB: Mitochondrial import receptor subunit TOM22

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Macromolecule #3: Mitochondrial import receptor subunit TOM5

MacromoleculeName: Mitochondrial import receptor subunit TOM5 / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Molecular weightTheoretical: 5.993924 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
SequenceString:
MFGLPQQEVS EEEKRAHQEQ TEKTLKQAAY VAAFLWVSPM IWHLVKKQWK

UniProtKB: Mitochondrial import receptor subunit TOM5

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Macromolecule #4: Mitochondrial import receptor subunit TOM6

MacromoleculeName: Mitochondrial import receptor subunit TOM6 / type: protein_or_peptide / ID: 4 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Molecular weightTheoretical: 6.41046 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
SequenceString:
MDGMFAMPGA AAGAASPQQP KSRFQAFKES PLYTIALNGA FFVAGVAFIQ SPLMDMLAPQ L

UniProtKB: Mitochondrial import receptor subunit TOM6

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Macromolecule #5: Mitochondrial import receptor subunit TOM7

MacromoleculeName: Mitochondrial import receptor subunit TOM7 / type: protein_or_peptide / ID: 5 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Molecular weightTheoretical: 6.876955 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
SequenceString:
MSFLPSFILS DESKERISKI LTLTHNVAHY GWIPFVLYLG WAHTSNRPNF LNLLSPLPSV

UniProtKB: Mitochondrial import receptor subunit TOM7

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Macromolecule #6: (2R)-3-{[(S)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-(tetradeca...

MacromoleculeName: (2R)-3-{[(S)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-(tetradecanoyloxy)propyl tetradecanoate
type: ligand / ID: 6 / Number of copies: 1 / Formula: 46E
Molecular weightTheoretical: 635.853 Da
Chemical component information

ChemComp-46E:
(2R)-3-{[(S)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-(tetradecanoyloxy)propyl tetradecanoate

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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

Concentration2.5 mg/mL
BufferpH: 7.4
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (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: 2.2 µm / Nominal defocus min: 1.2 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: NONE
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 4.4 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 50070
Initial angle assignmentType: PROJECTION MATCHING
Final angle assignmentType: MAXIMUM LIKELIHOOD

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