[English] 日本語
Yorodumi- PDB-7ou4: The structure of MutS bound to one molecule of ATP and one molecu... -
+
Open data
-
Basic information
| Entry | Database: PDB / ID: 7ou4 | ||||||
|---|---|---|---|---|---|---|---|
| Title | The structure of MutS bound to one molecule of ATP and one molecule of ADP | ||||||
Components | DNA mismatch repair protein MutS | ||||||
Keywords | DNA BINDING PROTEIN / DNA mismatch repair protein | ||||||
| Function / homology | Function and homology informationadenine/cytosine mispair binding / MutS complex / mismatch repair complex / regulation of DNA recombination / mismatched DNA binding / DNA binding, bending / ATP-dependent DNA damage sensor activity / mismatch repair / ADP binding / damaged DNA binding ...adenine/cytosine mispair binding / MutS complex / mismatch repair complex / regulation of DNA recombination / mismatched DNA binding / DNA binding, bending / ATP-dependent DNA damage sensor activity / mismatch repair / ADP binding / damaged DNA binding / DNA damage response / ATP hydrolysis activity / ATP binding / identical protein binding / cytosol Similarity search - Function | ||||||
| Biological species | ![]() | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.3 Å | ||||||
Authors | Lamers, M.H. / Borsellini, A. / Friedhoff, P. / Kunetsky, V. | ||||||
| Funding support | European Union, 1items
| ||||||
Citation | Journal: Nat Struct Mol Biol / Year: 2022Title: Cryogenic electron microscopy structures reveal how ATP and DNA binding in MutS coordinates sequential steps of DNA mismatch repair. Authors: Alessandro Borsellini / Vladislav Kunetsky / Peter Friedhoff / Meindert H Lamers / ![]() Abstract: DNA mismatch repair detects and corrects mismatches introduced during DNA replication. The protein MutS scans for mismatches and coordinates the repair cascade. During this process, MutS undergoes ...DNA mismatch repair detects and corrects mismatches introduced during DNA replication. The protein MutS scans for mismatches and coordinates the repair cascade. During this process, MutS undergoes multiple conformational changes in response to ATP binding, hydrolysis and release, but how ATP induces the various MutS conformations is incompletely understood. Here we present four cryogenic electron microscopy structures of Escherichia coli MutS at sequential stages of the ATP hydrolysis cycle that reveal how ATP binding and hydrolysis induce closing and opening of the MutS dimer, respectively. Biophysical analysis demonstrates how DNA binding modulates the ATPase cycle by prevention of hydrolysis during scanning and mismatch binding, while preventing ADP release in the sliding clamp state. Nucleotide release is achieved when MutS encounters single-stranded DNA that is produced during removal of the daughter strand. The combination of ATP binding and hydrolysis and its modulation by DNA enables MutS to adopt the different conformations needed to coordinate the sequential steps of the mismatch repair cascade. | ||||||
| History |
|
-
Structure visualization
| Movie |
Movie viewer |
|---|---|
| Structure viewer | Molecule: Molmil Jmol/JSmol |
-
Downloads & links
-
Download
| PDBx/mmCIF format | 7ou4.cif.gz | 281.9 KB | Display | PDBx/mmCIF format |
|---|---|---|---|---|
| PDB format | pdb7ou4.ent.gz | 221.9 KB | Display | PDB format |
| PDBx/mmJSON format | 7ou4.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 7ou4_validation.pdf.gz | 965.3 KB | Display | wwPDB validaton report |
|---|---|---|---|---|
| Full document | 7ou4_full_validation.pdf.gz | 977.9 KB | Display | |
| Data in XML | 7ou4_validation.xml.gz | 42.9 KB | Display | |
| Data in CIF | 7ou4_validation.cif.gz | 66.1 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ou/7ou4 ftp://data.pdbj.org/pub/pdb/validation_reports/ou/7ou4 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 13074MC ![]() 7otoC ![]() 7ou0C ![]() 7ou2C M: map data used to model this data C: citing same article ( |
|---|---|
| Similar structure data |
-
Links
-
Assembly
| Deposited unit | ![]()
|
|---|---|
| 1 |
|
-
Components
| #1: Protein | Mass: 90433.234 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Details: ATP / Source: (gene. exp.) ![]() ![]() #2: Chemical | #3: Chemical | ChemComp-ATP / | #4: Chemical | ChemComp-ADP / | Has ligand of interest | Y | |
|---|
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
|---|---|
| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-
Sample preparation
| Component | Name: DNA mismatch repair protein MutS / Type: ORGANELLE OR CELLULAR COMPONENT / Details: MutS bound to two molecules of ADP / Entity ID: #1 / Source: RECOMBINANT | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Molecular weight | Value: 0.19 MDa / Experimental value: NO | ||||||||||||||||||||||||||||||
| Source (natural) | Organism: ![]() | ||||||||||||||||||||||||||||||
| Source (recombinant) | Organism: ![]() | ||||||||||||||||||||||||||||||
| Buffer solution | pH: 8.5 | ||||||||||||||||||||||||||||||
| Buffer component |
| ||||||||||||||||||||||||||||||
| Specimen | Conc.: 0.95 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||
| Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 | ||||||||||||||||||||||||||||||
| Vitrification | Instrument: LEICA PLUNGER / Cryogen name: ETHANE / Humidity: 76 % / Chamber temperature: 277.15 K |
-
Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
|---|---|
| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 105000 X / Nominal defocus max: 2000 nm / Nominal defocus min: 500 nm / Cs: 2.7 mm / Alignment procedure: COMA FREE |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Image recording | Electron dose: 54 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of real images: 4835 |
| EM imaging optics | Energyfilter name: GIF Bioquantum / Energyfilter slit width: 20 eV |
| Image scans | Movie frames/image: 50 / Used frames/image: 1-50 |
-
Processing
| Software | Name: REFMAC / Version: 5.8.0267 / Classification: refinement | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EM software |
| ||||||||||||||||||||||||||||||||||||
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||
| Particle selection | Num. of particles selected: 527979 | ||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 151672 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||
| Atomic model building | B value: 70 / Protocol: FLEXIBLE FIT / Space: RECIPROCAL | ||||||||||||||||||||||||||||||||||||
| Atomic model building | PDB-ID: 1E3M Accession code: 1E3M / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||||||||||||||
| Refinement | Resolution: 3.3→3.3 Å / Cor.coef. Fo:Fc: 0.882
| ||||||||||||||||||||||||||||||||||||
| Displacement parameters | Biso mean: 78.874 Å2
| ||||||||||||||||||||||||||||||||||||
| LS refinement shell | Highest resolution: 3.2 Å /
|
Movie
Controller
About Yorodumi





Citation

UCSF Chimera













PDBj





