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Yorodumi- EMDB-13295: RuvAB branch migration motor complexed to the Holliday junction -... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-13295 | |||||||||
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Title | RuvAB branch migration motor complexed to the Holliday junction - RuvB AAA+ state s2 [t2 dataset] | |||||||||
Map data | RuvB AAA state s2 [t2 dataset] | |||||||||
Sample |
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Keywords | DNA recombination / DNA repair / branch migration / Holliday junction / helicase / HYDROLASE | |||||||||
Function / homology | Function and homology information Holliday junction helicase complex / Holliday junction resolvase complex / four-way junction helicase activity / four-way junction DNA binding / DNA helicase / DNA recombination / DNA repair / ATP hydrolysis activity / ATP binding / cytoplasm Similarity search - Function | |||||||||
Biological species | Streptococcus thermophilus (bacteria) / Salmonella typhimurium (bacteria) / synthetic construct (others) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.2 Å | |||||||||
Authors | Wald J / Marlovits TC | |||||||||
Citation | Journal: Nature / Year: 2022 Title: Mechanism of AAA+ ATPase-mediated RuvAB-Holliday junction branch migration. Authors: Jiri Wald / Dirk Fahrenkamp / Nikolaus Goessweiner-Mohr / Wolfgang Lugmayr / Luciano Ciccarelli / Oliver Vesper / Thomas C Marlovits / Abstract: The Holliday junction is a key intermediate formed during DNA recombination across all kingdoms of life. In bacteria, the Holliday junction is processed by two homo-hexameric AAA+ ATPase RuvB motors, ...The Holliday junction is a key intermediate formed during DNA recombination across all kingdoms of life. In bacteria, the Holliday junction is processed by two homo-hexameric AAA+ ATPase RuvB motors, which assemble together with the RuvA-Holliday junction complex to energize the strand-exchange reaction. Despite its importance for chromosome maintenance, the structure and mechanism by which this complex facilitates branch migration are unknown. Here, using time-resolved cryo-electron microscopy, we obtained structures of the ATP-hydrolysing RuvAB complex in seven distinct conformational states, captured during assembly and processing of a Holliday junction. Five structures together resolve the complete nucleotide cycle and reveal the spatiotemporal relationship between ATP hydrolysis, nucleotide exchange and context-specific conformational changes in RuvB. Coordinated motions in a converter formed by DNA-disengaged RuvB subunits stimulate hydrolysis and nucleotide exchange. Immobilization of the converter enables RuvB to convert the ATP-contained energy into a lever motion, which generates the pulling force driving the branch migration. We show that RuvB motors rotate together with the DNA substrate, which, together with a progressing nucleotide cycle, forms the mechanistic basis for DNA recombination by continuous branch migration. Together, our data decipher the molecular principles of homologous recombination by the RuvAB complex, elucidate discrete and sequential transition-state intermediates for chemo-mechanical coupling of hexameric AAA+ motors and provide a blueprint for the design of state-specific compounds targeting AAA+ motors. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_13295.map.gz | 9.7 MB | EMDB map data format | |
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Header (meta data) | emd-13295-v30.xml emd-13295.xml | 22 KB 22 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_13295_fsc.xml | 12.8 KB | Display | FSC data file |
Images | emd_13295.png | 95.2 KB | ||
Filedesc metadata | emd-13295.cif.gz | 12 KB | ||
Others | emd_13295_half_map_1.map.gz emd_13295_half_map_2.map.gz | 141 MB 141 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-13295 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-13295 | HTTPS FTP |
-Validation report
Summary document | emd_13295_validation.pdf.gz | 818.9 KB | Display | EMDB validaton report |
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Full document | emd_13295_full_validation.pdf.gz | 818.5 KB | Display | |
Data in XML | emd_13295_validation.xml.gz | 20.2 KB | Display | |
Data in CIF | emd_13295_validation.cif.gz | 26.6 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-13295 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-13295 | HTTPS FTP |
-Related structure data
Related structure data | 7pbmMC 7pblC 7pbnC 7pboC 7pbpC 7pbqC 7pbrC 7pbsC 7pbtC 7pbuC C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_13295.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Annotation | RuvB AAA state s2 [t2 dataset] | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.09 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: RuvB AAA state s2 [t2 dataset]
File | emd_13295_half_map_1.map | ||||||||||||
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Annotation | RuvB AAA state s2 [t2 dataset] | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: RuvB AAA state s2 [t2 dataset]
File | emd_13295_half_map_2.map | ||||||||||||
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Annotation | RuvB AAA state s2 [t2 dataset] | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
-Entire : RuvAB branch migration motor complexed to the Holliday junction -...
Entire | Name: RuvAB branch migration motor complexed to the Holliday junction - RuvB motor state s2 [t2 dataset] |
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Components |
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-Supramolecule #1: RuvAB branch migration motor complexed to the Holliday junction -...
Supramolecule | Name: RuvAB branch migration motor complexed to the Holliday junction - RuvB motor state s2 [t2 dataset] type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 / Details: RuvB helicase |
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Source (natural) | Organism: Streptococcus thermophilus (bacteria) |
Molecular weight | Theoretical: 220 KDa |
-Macromolecule #1: Holliday junction ATP-dependent DNA helicase RuvB
Macromolecule | Name: Holliday junction ATP-dependent DNA helicase RuvB / type: protein_or_peptide / ID: 1 / Number of copies: 6 / Enantiomer: LEVO / EC number: DNA helicase |
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Source (natural) | Organism: Streptococcus thermophilus (bacteria) |
Molecular weight | Theoretical: 35.447508 KDa |
Recombinant expression | Organism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria) |
Sequence | String: TLRPQYFKEY IGQDKVKDQL KIFIEAAKLR DEALDHTLLF GPPGLGKTTM AFVIANEMGV NLKQTSGPAI EKAGDLVAIL NDLEPGDIL FIDEIHRMPM AVEEVLYSAM EDYYIDIMIG AGETSRSVHL DLPPFTLVGA TTRAGMLSNP LRARFGINGH M EYYELPDL ...String: TLRPQYFKEY IGQDKVKDQL KIFIEAAKLR DEALDHTLLF GPPGLGKTTM AFVIANEMGV NLKQTSGPAI EKAGDLVAIL NDLEPGDIL FIDEIHRMPM AVEEVLYSAM EDYYIDIMIG AGETSRSVHL DLPPFTLVGA TTRAGMLSNP LRARFGINGH M EYYELPDL TEIVERTSEI FEMTITPEAA LELARRSRGT PRIANRLLKR VRDYAQIMGD GVIDDKIADQ ALTMLDVDHE GL DYVDQKI LRTMIEMYGG GPVGLGTLSV NIAEERETVE DMYEPYLIQK GFIMRTRTGR VATAKAYEHM GYDYTRDN UniProtKB: Holliday junction branch migration complex subunit RuvB |
-Macromolecule #2: Holliday junction ATP-dependent DNA helicase RuvA
Macromolecule | Name: Holliday junction ATP-dependent DNA helicase RuvA / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA helicase |
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Source (natural) | Organism: Salmonella typhimurium (bacteria) |
Molecular weight | Theoretical: 5.105734 KDa |
Recombinant expression | Organism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria) |
Sequence | String: SEDAEQEAVA ALVALGYKPQ EASRMVSKIA RPDASSETLI RDALRAAL UniProtKB: Holliday junction branch migration complex subunit RuvA |
-Macromolecule #3: Holliday junction ATP-dependent DNA helicase RuvA
Macromolecule | Name: Holliday junction ATP-dependent DNA helicase RuvA / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA helicase |
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Source (natural) | Organism: Salmonella typhimurium (bacteria) |
Molecular weight | Theoretical: 5.442131 KDa |
Recombinant expression | Organism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria) |
Sequence | String: DAEQEAVAAL VALGYKPQEA SRMVSKIARP DASSETLIRD ALRAALHHHH UniProtKB: Holliday junction branch migration complex subunit RuvA |
-Macromolecule #4: random DNA
Macromolecule | Name: random DNA / type: dna / ID: 4 / Number of copies: 1 / Classification: DNA |
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Source (natural) | Organism: synthetic construct (others) |
Molecular weight | Theoretical: 4.643037 KDa |
Sequence | String: (DG)(DA)(DA)(DC)(DC)(DT)(DT)(DC)(DG)(DA) (DG)(DG)(DA)(DA)(DG) |
-Macromolecule #5: random DNA
Macromolecule | Name: random DNA / type: dna / ID: 5 / Number of copies: 1 / Classification: DNA |
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Source (natural) | Organism: synthetic construct (others) |
Molecular weight | Theoretical: 4.535946 KDa |
Sequence | String: (DC)(DT)(DT)(DC)(DC)(DT)(DC)(DG)(DA)(DA) (DG)(DG)(DT)(DT)(DC) |
-Macromolecule #6: PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER
Macromolecule | Name: PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER / type: ligand / ID: 6 / Number of copies: 3 / Formula: AGS |
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Molecular weight | Theoretical: 523.247 Da |
Chemical component information | ChemComp-AGS: |
-Macromolecule #7: MAGNESIUM ION
Macromolecule | Name: MAGNESIUM ION / type: ligand / ID: 7 / Number of copies: 3 / Formula: MG |
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Molecular weight | Theoretical: 24.305 Da |
-Macromolecule #8: ADENOSINE-5'-DIPHOSPHATE
Macromolecule | Name: ADENOSINE-5'-DIPHOSPHATE / type: ligand / ID: 8 / Number of copies: 3 / Formula: ADP |
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Molecular weight | Theoretical: 427.201 Da |
Chemical component information | ChemComp-ADP: |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 8 |
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Grid | Model: Quantifoil R2/2 / Material: GOLD / Mesh: 300 / Support film - Material: CARBON / Support film - topology: CONTINUOUS / Support film - Film thickness: 0.15 |
Vitrification | Cryogen name: ETHANE-PROPANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV |
Details | in-vitro reconstituted freshly before vitrification |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Energy filter - Name: GIF Bioquantum / Energy filter - Slit width: 10 eV |
Image recording | Film or detector model: GATAN K2 QUANTUM (4k x 4k) / Detector mode: COUNTING / Number real images: 30083 / Average exposure time: 5.0 sec. / Average electron dose: 30.7 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | C2 aperture diameter: 70.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 4.0 µm / Nominal defocus min: 0.5 µm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
+Image processing
-Atomic model buiding 1
Refinement | Protocol: OTHER |
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Output model | PDB-7pbm: |