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- EMDB-31885: Tom core complex with Tom20 and Tom22 subunits. -

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Basic information

Entry
Database: EMDB / ID: EMD-31885
TitleTom core complex with Tom20 and Tom22 subunits.
Map data
Sample
  • Complex: Tox complex
    • Protein or peptide: Translocase of the Outer Membrane
    • Protein or peptide: Mitochondrial import receptor subunit TOM6 homolog
    • Protein or peptide: Mitochondrial import receptor subunit TOM5 homolog
    • Protein or peptide: Mitochondrial import receptor subunit TOM7 homolog
    • Protein or peptide: Mitochondrial import receptor subunit TOM22 homolog
  • Ligand: 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE
  • Ligand: UNDECANE
KeywordsTom complex / Tom20 / Cryo-EM / TRANSLOCASE
Function / homology
Function and homology information


TOM complex / mitochondrion targeting sequence binding / mitochondrial outer membrane translocase complex / protein import into mitochondrial matrix / : / Mitochondrial protein import / protein targeting to mitochondrion / positive regulation of protein targeting to mitochondrion / protein insertion into mitochondrial outer membrane / protein transmembrane transporter activity ...TOM complex / mitochondrion targeting sequence binding / mitochondrial outer membrane translocase complex / protein import into mitochondrial matrix / : / Mitochondrial protein import / protein targeting to mitochondrion / positive regulation of protein targeting to mitochondrion / protein insertion into mitochondrial outer membrane / protein transmembrane transporter activity / PINK1-PRKN Mediated Mitophagy / regulation of protein stability / mitochondrial outer membrane / mitochondrion / membrane
Similarity search - Function
Mitochondrial import receptor subunit TOM5, metazoa / Mitochondrial import receptor subunit TOM6 homologue / Mitochondrial import receptor subunit TOM6 homolog / 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
Similarity search - Domain/homology
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: 2.54 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 core complex with Tom20 and Tom22 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_31885.png

Downloads & links

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Map

FileDownload / File: emd_31885.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.84 Å/pix.
x 320 pix.
= 269.856 Å		0.84 Å/pix.
x 320 pix.
= 269.856 Å		0.84 Å/pix.
x 320 pix.
= 269.856 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.8433 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.302
Minimum - Maximum-0.3727763 - 1.1065001
Average (Standard dev.)0.000063027976 (±0.033451386)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions320320320
Spacing320320320
CellA=B=C: 269.856 Å
α=β=γ: 90.0 °

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Supplemental data

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Sample components

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Entire : Tox complex

EntireName: Tox complex
Components
  • Complex: Tox complex
    • Protein or peptide: Translocase of the Outer Membrane
    • Protein or peptide: Mitochondrial import receptor subunit TOM6 homolog
    • Protein or peptide: Mitochondrial import receptor subunit TOM5 homolog
    • Protein or peptide: Mitochondrial import receptor subunit TOM7 homolog
    • Protein or peptide: Mitochondrial import receptor subunit TOM22 homolog
  • Ligand: 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE
  • Ligand: UNDECANE

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Supramolecule #1: Tox complex

SupramoleculeName: Tox complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Translocase of the Outer Membrane

MacromoleculeName: Translocase of the Outer Membrane / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 89.999117 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 GLTIGMVGRN SAIAAGVCGA LFIGYCIYFD RKRRSDPNFK NRLR ERRKK QKLAKERAGL SKLPDLKDAE AVQKFFLEEI QLGEELLAQG EYEKGVDHLT NAIAVCGQPQ QLLQVLQQTL PPPVF QMLL TKLPTISQRI VSAQSLAEDD VEMAAAVAAA GAGEPQSPDE LLPKGDAEKP EEELEEDDDE ELDETLSERL WGLTEM FPE RVRSAAGATF DLSLFVAQKM YRFSRAALWI GTTSFMILVL PVVFETEKLQ MEQQQQLQQR QILLGPNTGL SGGMPGA LP SLPGKIMFRI EGLAPKLDPE EMKRKMREDV ISSIRNFLIY VALLRVTPFI LKKLDSIMAS STVPVSAAGS ANETPEIP D NVGDWLRGVY RFATDRNDFR RNLILNLGLF AAGVWLARNL SDIDLMAPQP GVMVKLSKEA KQRLQQLFKG SQFAIRWGF IPLVIYLGFK RGADPGMPEP TVLSLLWG

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Macromolecule #2: Mitochondrial import receptor subunit TOM6 homolog

MacromoleculeName: Mitochondrial import receptor subunit TOM6 homolog / type: protein_or_peptide / ID: 2 / 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 #3: Mitochondrial import receptor subunit TOM5 homolog

MacromoleculeName: Mitochondrial import receptor subunit TOM5 homolog / type: protein_or_peptide / ID: 3 / 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 #4: Mitochondrial import receptor subunit TOM7 homolog

MacromoleculeName: Mitochondrial import receptor subunit TOM7 homolog / type: protein_or_peptide / ID: 4 / 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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Macromolecule #5: Mitochondrial import receptor subunit TOM22 homolog

MacromoleculeName: Mitochondrial import receptor subunit TOM22 homolog / type: protein_or_peptide / ID: 5 / 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 #6: 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE

MacromoleculeName: 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE / type: ligand / ID: 6 / Number of copies: 11 / Formula: PC1
Molecular weightTheoretical: 790.145 Da
Chemical component information

ChemComp-PC1:
1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE / phospholipid*YM

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Macromolecule #7: UNDECANE

MacromoleculeName: UNDECANE / type: ligand / ID: 7 / Number of copies: 12 / Formula: UND
Molecular weightTheoretical: 156.308 Da
Chemical component information

ChemComp-UND:
UNDECANE

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation statecell

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Sample preparation

BufferpH: 7.4
Sugar embeddingMaterial: DIG
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: 2.54 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 288736
Initial angle assignmentType: COMMON LINE
Final angle assignmentType: COMMON LINE

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