+Open data
-Basic information
Entry | Database: PDB / ID: 7zkq | ||||||
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Title | Early Pp module assembly intermediate of complex I | ||||||
Components |
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Keywords | ELECTRON TRANSPORT / assembly respiratory chain membrane protein mitochondria | ||||||
Function / homology | Function and homology information : / cardiolipin acyl-chain remodeling / 1-acylglycerophosphocholine O-acyltransferase activity / O-acyltransferase activity / inner mitochondrial membrane organization / mitochondrial respirasome assembly / phospholipid biosynthetic process / NADH:ubiquinone reductase (H+-translocating) / mitochondrial ATP synthesis coupled electron transport / : ...: / cardiolipin acyl-chain remodeling / 1-acylglycerophosphocholine O-acyltransferase activity / O-acyltransferase activity / inner mitochondrial membrane organization / mitochondrial respirasome assembly / phospholipid biosynthetic process / NADH:ubiquinone reductase (H+-translocating) / mitochondrial ATP synthesis coupled electron transport / : / mitochondrial membrane / mitochondrial inner membrane / oxidoreductase activity / mitochondrion Similarity search - Function | ||||||
Biological species | Yarrowia lipolytica (yeast) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.15 Å | ||||||
Authors | Schiller, J. / Laube, E. / Vonck, J. / Zickermann, V. | ||||||
Funding support | Germany, 1items
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Citation | Journal: Sci Adv / Year: 2022 Title: Insights into complex I assembly: Function of NDUFAF1 and a link with cardiolipin remodeling. Authors: Jonathan Schiller / Eike Laube / Ilka Wittig / Werner Kühlbrandt / Janet Vonck / Volker Zickermann / Abstract: Respiratory complex I is a ~1-MDa proton pump in mitochondria. Its structure has been revealed in great detail, but the structural basis of its assembly, in humans involving at least 15 assembly ...Respiratory complex I is a ~1-MDa proton pump in mitochondria. Its structure has been revealed in great detail, but the structural basis of its assembly, in humans involving at least 15 assembly factors, is essentially unknown. We determined cryo-electron microscopy structures of assembly intermediates associated with assembly factor NDUFAF1 in a yeast model system. Subunits ND2 and NDUFC2 together with assembly factors NDUFAF1 and CIA84 form the nucleation point of the NDUFAF1-dependent assembly pathway. Unexpectedly, the cardiolipin remodeling enzyme tafazzin is an integral component of this core complex. In a later intermediate, all 12 subunits of the proximal proton pump module have assembled. NDUFAF1 locks the central ND3 subunit in an assembly-competent conformation, and major rearrangements of central subunits are required for complex I maturation. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 7zkq.cif.gz | 288.4 KB | Display | PDBx/mmCIF format |
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PDB format | pdb7zkq.ent.gz | 229 KB | Display | PDB format |
PDBx/mmJSON format | 7zkq.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7zkq_validation.pdf.gz | 1.3 MB | Display | wwPDB validaton report |
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Full document | 7zkq_full_validation.pdf.gz | 1.3 MB | Display | |
Data in XML | 7zkq_validation.xml.gz | 56 KB | Display | |
Data in CIF | 7zkq_validation.cif.gz | 81.4 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/zk/7zkq ftp://data.pdbj.org/pub/pdb/validation_reports/zk/7zkq | HTTPS FTP |
-Related structure data
Related structure data | 14765MC 7zkpC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-Protein , 5 types, 5 molecules 2bACT
#1: Protein | Mass: 53381.367 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Yarrowia lipolytica (yeast) References: UniProt: S5U4R9, NADH:ubiquinone reductase (H+-translocating) |
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#2: Protein | Mass: 8059.366 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Yarrowia lipolytica (yeast) / References: UniProt: A0A1D8NGI5 |
#3: Protein | Mass: 31894.016 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: C-terminal strep tag / Source: (gene. exp.) Yarrowia lipolytica (yeast) / Gene: B0I71DRAFT_38716 / Production host: Yarrowia lipolytica (yeast) / Variant (production host): deletion of NDUFAF1 / References: UniProt: A0A371C5R6 |
#4: Protein | Mass: 97098.469 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Yarrowia lipolytica (yeast) / References: UniProt: A0A1D8N612 |
#5: Protein | Mass: 42835.367 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Yarrowia lipolytica (yeast) / Strain: CLIB 122 / E 150 / References: UniProt: Q6CBZ7 |
-Non-polymers , 3 types, 4 molecules
#6: Chemical | #7: Chemical | ChemComp-LMN / | #8: Chemical | ChemComp-PLC / | |
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-Details
Has ligand of interest | N |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Early Pp module assembly intermediate of complex I with assembly factors NDUFAF1 and CIA84 and cardiolipin remodeling enzyme tafazzin. Type: COMPLEX / Entity ID: #1-#5 / Source: NATURAL |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: Yarrowia lipolytica (yeast) |
Buffer solution | pH: 7.5 |
Specimen | Conc.: 1.2 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES Details: The sample was a mixture of assembly intermediates associated with the assembly factor NDUFAF1 |
Specimen support | Grid material: COPPER / Grid type: C-flat-1.2/1.3 |
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 276 K |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: TFS KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 3000 nm / Nominal defocus min: 1000 nm |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 6229 |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 2048808 | ||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.15 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 376810 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||
Atomic model building | Protocol: OTHER / Space: REAL | ||||||||||||||||||||||||||||||||
Atomic model building | PDB-ID: 7O71 |