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- PDB-7vc4: Tom complex with Tom22 and Tom20 subunits -

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Basic information

Entry
Database: PDB / ID: 7vc4
TitleTom complex with Tom22 and Tom20 subunits
Components
  • Mitochondrial import receptor subunit TOM22 homolog
  • Mitochondrial import receptor subunit TOM40 homolog
  • Mitochondrial import receptor subunit TOM5 homolog
  • Mitochondrial import receptor subunit TOM6 homolog
  • Mitochondrial import receptor subunit TOM7 homolog
KeywordsTRANSLOCASE / Tom complex / Cryo-EM / Tom22
Function / homology
Function and homology information


TOM complex / mitochondrion targeting sequence binding / mitochondrial outer membrane translocase complex / mitochondria-associated endoplasmic reticulum membrane contact site / 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 ...TOM complex / mitochondrion targeting sequence binding / mitochondrial outer membrane translocase complex / mitochondria-associated endoplasmic reticulum membrane contact site / 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 / porin activity / pore complex / 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 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 ...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 / 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)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.74 Å
AuthorsLiu, D.S. / Sui, S.F.
Funding support China, 1items
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, D.S. / Sui, S.F.
History
DepositionSep 1, 2021Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Sep 7, 2022Provider: repository / Type: Initial release
Revision 1.1Jun 19, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Mitochondrial import receptor subunit TOM6 homolog
B: Mitochondrial import receptor subunit TOM40 homolog
C: Mitochondrial import receptor subunit TOM22 homolog
D: Mitochondrial import receptor subunit TOM5 homolog
E: Mitochondrial import receptor subunit TOM5 homolog
F: Mitochondrial import receptor subunit TOM6 homolog
G: Mitochondrial import receptor subunit TOM7 homolog
H: Mitochondrial import receptor subunit TOM22 homolog
I: Mitochondrial import receptor subunit TOM40 homolog
J: Mitochondrial import receptor subunit TOM7 homolog


Theoretical massNumber of molelcules
Total (without water)147,53810
Polymers147,53810
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration, gel filtration, gel filtration, gel filtration, gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area16780 Å2
ΔGint-164 kcal/mol
Surface area64160 Å2

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Components

#1: Protein Mitochondrial import receptor subunit TOM6 homolog / Overexpressed breast tumor protein / Translocase of outer membrane 6 kDa subunit homolog


Mass: 8007.988 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TOMM6, OBTP, TOM6 / Production host: Homo sapiens (human) / References: UniProt: Q96B49
#2: Protein Mitochondrial import receptor subunit TOM40 homolog / Protein Haymaker / Translocase of outer membrane 40 kDa subunit homolog / p38.5


Mass: 37926.926 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TOMM40, C19orf1, PEREC1, TOM40 / Production host: Homo sapiens (human) / References: UniProt: O96008
#3: Protein Mitochondrial import receptor subunit TOM22 homolog / hTom22 / 1C9-2 / Translocase of outer membrane 22 kDa subunit homolog


Mass: 15532.528 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TOMM22, TOM22 / Production host: Homo sapiens (human) / References: UniProt: Q9NS69
#4: Protein Mitochondrial import receptor subunit TOM5 homolog


Mass: 6045.318 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TOMM5, C9orf105, TOM5 / Production host: Homo sapiens (human) / References: UniProt: Q8N4H5
#5: Protein Mitochondrial import receptor subunit TOM7 homolog / Translocase of outer membrane 7 kDa subunit homolog


Mass: 6256.473 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TOMM7, TOM7, TOMM07, AD-014 / Production host: Homo sapiens (human) / References: UniProt: Q9P0U1

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Tom complex with full length Tom22 subunits / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: YES / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
EM embeddingMaterial: Digitinon
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.74 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 347601 / Symmetry type: POINT

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