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- EMDB-31888: Tom complex with Tom22 and Tom20 subunits -

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ID or keywords:

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Basic information

Entry
Database: EMDB / ID: EMD-31888
TitleTom complex with Tom22 and Tom20 subunits
Map data
Sample
  • Complex: Tom complex with full length Tom22 subunits
    • Protein or peptide: Mitochondrial import receptor subunit TOM6 homolog
    • Protein or peptide: Mitochondrial import receptor subunit TOM40 homolog
    • Protein or peptide: Mitochondrial import receptor subunit TOM22 homolog
    • Protein or peptide: Mitochondrial import receptor subunit TOM5 homolog
    • Protein or peptide: Mitochondrial import receptor subunit TOM7 homolog
KeywordsTom complex / Cryo-EM / Tom22 / TRANSLOCASE
Function / homology
Function and homology information


TOM complex / mitochondrion targeting sequence binding / mitochondrial outer membrane translocase complex / protein insertion into mitochondrial outer membrane / mitochondria-associated endoplasmic reticulum membrane contact site / positive regulation of type 2 mitophagy / Mitochondrial protein import / positive regulation of protein targeting to mitochondrion / protein targeting to mitochondrion / porin activity ...TOM complex / mitochondrion targeting sequence binding / mitochondrial outer membrane translocase complex / protein insertion into mitochondrial outer membrane / mitochondria-associated endoplasmic reticulum membrane contact site / positive regulation of type 2 mitophagy / Mitochondrial protein import / positive regulation of protein targeting to mitochondrion / protein targeting to mitochondrion / porin activity / pore complex / protein import into mitochondrial matrix / protein transmembrane transporter activity / monoatomic ion transport / PINK1-PRKN Mediated Mitophagy / regulation of protein stability / mitochondrial outer membrane / mitochondrial inner membrane / mitochondrion / membrane / cytosol
Similarity search - Function
Mitochondrial import receptor subunit TOM5, metazoa / Mitochondrial import receptor subunit TOM6 homologue / Mitochondrial import receptor subunit TOM6 homolog / Mitochondrial outer membrane translocase complex, subunit Tom5 / Mitochondrial import receptor subunit or translocase / Mitochondrial import receptor subunit Tom22 / Mitochondrial import receptor subunit TOM7 / Mitochondrial import receptor subunit Tom22 / TOM7 family / Tom40 ...Mitochondrial import receptor subunit TOM5, metazoa / Mitochondrial import receptor subunit TOM6 homologue / Mitochondrial import receptor subunit TOM6 homolog / Mitochondrial outer membrane translocase complex, subunit Tom5 / Mitochondrial import receptor subunit or translocase / Mitochondrial import receptor subunit Tom22 / Mitochondrial import receptor subunit TOM7 / Mitochondrial import receptor subunit Tom22 / TOM7 family / Tom40 / Eukaryotic porin/Tom40 / Eukaryotic porin / Porin domain superfamily
Similarity search - Domain/homology
Mitochondrial import receptor subunit TOM40 homolog / Mitochondrial import receptor subunit TOM5 homolog / Mitochondrial import receptor subunit TOM6 homolog / Mitochondrial import receptor subunit TOM22 homolog / Mitochondrial import receptor subunit TOM7 homolog
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.74 Å
AuthorsLiu DS / Sui SF
Funding support China, 1 items
OrganizationGrant numberCountry
National Basic Research Program of China (973 Program) China
CitationJournal: To Be Published
Title: Tom complex with Tom22 and Tom20 subunits
Authors: Liu DS / Sui SF
History
DepositionSep 1, 2021-
Header (metadata) releaseSep 7, 2022-
Map releaseSep 7, 2022-
UpdateJun 19, 2024-
Current statusJun 19, 2024Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_31888.png

Downloads & links

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Map

FileDownload / File: emd_31888.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.08 Å/pix.
x 256 pix.
= 277.12 Å		1.08 Å/pix.
x 256 pix.
= 277.12 Å		1.08 Å/pix.
x 256 pix.
= 277.12 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.0825 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.0112
Minimum - Maximum-0.006351583 - 0.028208856
Average (Standard dev.)0.000058887377 (±0.0018435512)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 277.12 Å
α=β=γ: 90.0 °

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Supplemental data

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Sample components

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Entire : Tom complex with full length Tom22 subunits

EntireName: Tom complex with full length Tom22 subunits
Components
  • Complex: Tom complex with full length Tom22 subunits
    • Protein or peptide: Mitochondrial import receptor subunit TOM6 homolog
    • Protein or peptide: Mitochondrial import receptor subunit TOM40 homolog
    • Protein or peptide: Mitochondrial import receptor subunit TOM22 homolog
    • Protein or peptide: Mitochondrial import receptor subunit TOM5 homolog
    • Protein or peptide: Mitochondrial import receptor subunit TOM7 homolog

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Supramolecule #1: Tom complex with full length Tom22 subunits

SupramoleculeName: Tom complex with full length Tom22 subunits / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Mitochondrial import receptor subunit TOM6 homolog

MacromoleculeName: Mitochondrial import receptor subunit TOM6 homolog / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 8.007988 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
MASSTVPVSA AGSANETPEI PDNVGDWLRG VYRFATDRND FRRNLILNLG LFAAGVWLAR NLSDIDLMAP QPGV

UniProtKB: Mitochondrial import receptor subunit TOM6 homolog

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Macromolecule #2: Mitochondrial import receptor subunit TOM40 homolog

MacromoleculeName: Mitochondrial import receptor subunit TOM40 homolog / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 37.926926 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MGNVLAASSP PAGPPPPPAP ALVGLPPPPP SPPGFTLPPL GGSLGAGTST SRSSERTPGA ATASASGAAE DGACGCLPNP GTFEECHRK CKELFPIQME GVKLTVNKGL SNHFQVNHTV ALSTIGESNY HFGVTYVGTK QLSPTEAFPV LVGDMDNSGS L NAQVIHQL ...String:
MGNVLAASSP PAGPPPPPAP ALVGLPPPPP SPPGFTLPPL GGSLGAGTST SRSSERTPGA ATASASGAAE DGACGCLPNP GTFEECHRK CKELFPIQME GVKLTVNKGL SNHFQVNHTV ALSTIGESNY HFGVTYVGTK QLSPTEAFPV LVGDMDNSGS L NAQVIHQL GPGLRSKMAI QTQQSKFVNW QVDGEYRGSD FTAAVTLGNP DVLVGSGILV AHYLQSITPC LALGGELVYH RR PGEEGTV MSLAGKYTLN NWLATVTLGQ AGMHATYYHK ASDQLQVGVE FEASTRMQDT SVSFGYQLDL PKANLLFKGS VDS NWIVGA TLEKKLPPLP LTLALGAFLN HRKNKFQCGF GLTIG

UniProtKB: Mitochondrial import receptor subunit TOM40 homolog

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Macromolecule #3: Mitochondrial import receptor subunit TOM22 homolog

MacromoleculeName: Mitochondrial import receptor subunit TOM22 homolog / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 15.532528 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
MAAAVAAAGA GEPQSPDELL PKGDAEKPEE ELEEDDDEEL DETLSERLWG LTEMFPERVR SAAGATFDLS LFVAQKMYRF SRAALWIGT TSFMILVLPV VFETEKLQME QQQQLQQRQI LLGPNTGLSG GMPGALPSLP GKI

UniProtKB: Mitochondrial import receptor subunit TOM22 homolog

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Macromolecule #4: Mitochondrial import receptor subunit TOM5 homolog

MacromoleculeName: Mitochondrial import receptor subunit TOM5 homolog / type: protein_or_peptide / ID: 4 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 6.045318 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
MFRIEGLAPK LDPEEMKRKM REDVISSIRN FLIYVALLRV TPFILKKLDS I

UniProtKB: Mitochondrial import receptor subunit TOM5 homolog

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Macromolecule #5: Mitochondrial import receptor subunit TOM7 homolog

MacromoleculeName: Mitochondrial import receptor subunit TOM7 homolog / type: protein_or_peptide / ID: 5 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 6.256473 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
MVKLSKEAKQ RLQQLFKGSQ FAIRWGFIPL VIYLGFKRGA DPGMPEPTVL SLLWG

UniProtKB: Mitochondrial import receptor subunit TOM7 homolog

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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: 7.4
Sugar embeddingMaterial: Digitinon
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN 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
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

6g73

Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.74 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 347601
Initial angle assignmentType: COMMON LINE
Final angle assignmentType: COMMON LINE

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