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Open data
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Basic information
Entry | Database: PDB / ID: 6i52 | ||||||
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Title | Yeast RPA bound to ssDNA | ||||||
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![]() | DNA BINDING PROTEIN / Complex / heterotrimer / DNA binding / OB-fold | ||||||
Function / homology | ![]() heteroduplex formation / sporulation / DNA replication factor A complex / Gap-filling DNA repair synthesis and ligation in GG-NER / telomere maintenance via telomere lengthening / Removal of the Flap Intermediate / telomere maintenance via recombination / Translesion Synthesis by POLH / Activation of the pre-replicative complex / Translesion synthesis by REV1 ...heteroduplex formation / sporulation / DNA replication factor A complex / Gap-filling DNA repair synthesis and ligation in GG-NER / telomere maintenance via telomere lengthening / Removal of the Flap Intermediate / telomere maintenance via recombination / Translesion Synthesis by POLH / Activation of the pre-replicative complex / Translesion synthesis by REV1 / Translesion synthesis by POLK / Translesion synthesis by POLI / single-stranded telomeric DNA binding / Activation of ATR in response to replication stress / mitotic recombination / Termination of translesion DNA synthesis / reciprocal meiotic recombination / DNA unwinding involved in DNA replication / Gap-filling DNA repair synthesis and ligation in TC-NER / DNA topological change / Dual incision in TC-NER / telomere maintenance via telomerase / telomere maintenance / condensed nuclear chromosome / nucleotide-excision repair / double-strand break repair via homologous recombination / establishment of protein localization / site of double-strand break / single-stranded DNA binding / double-stranded DNA binding / DNA replication / sequence-specific DNA binding / chromosome, telomeric region / damaged DNA binding / protein ubiquitination / DNA repair / mRNA binding / nucleus / metal ion binding / cytoplasm / cytosol Similarity search - Function | ||||||
Biological species | ![]() ![]() synthetic construct (others) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.7 Å | ||||||
![]() | Yates, L.A. / Aramayo, R.J. / Zhang, X. | ||||||
Funding support | ![]()
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![]() | ![]() Title: A structural and dynamic model for the assembly of Replication Protein A on single-stranded DNA. Authors: Luke A Yates / Ricardo J Aramayo / Nilisha Pokhrel / Colleen C Caldwell / Joshua A Kaplan / Rajika L Perera / Maria Spies / Edwin Antony / Xiaodong Zhang / ![]() ![]() Abstract: Replication Protein A (RPA), the major eukaryotic single stranded DNA-binding protein, binds to exposed ssDNA to protect it from nucleases, participates in a myriad of nucleic acid transactions and ...Replication Protein A (RPA), the major eukaryotic single stranded DNA-binding protein, binds to exposed ssDNA to protect it from nucleases, participates in a myriad of nucleic acid transactions and coordinates the recruitment of other important players. RPA is a heterotrimer and coats long stretches of single-stranded DNA (ssDNA). The precise molecular architecture of the RPA subunits and its DNA binding domains (DBDs) during assembly is poorly understood. Using cryo electron microscopy we obtained a 3D reconstruction of the RPA trimerisation core bound with ssDNA (∼55 kDa) at ∼4.7 Å resolution and a dimeric RPA assembly on ssDNA. FRET-based solution studies reveal dynamic rearrangements of DBDs during coordinated RPA binding and this activity is regulated by phosphorylation at S178 in RPA70. We present a structural model on how dynamic DBDs promote the cooperative assembly of multiple RPAs on long ssDNA. | ||||||
History |
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Structure visualization
Movie |
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 108.5 KB | Display | ![]() |
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PDB format | ![]() | 82 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 375.1 KB | Display | ![]() |
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Full document | ![]() | 382.6 KB | Display | |
Data in XML | ![]() | 10.5 KB | Display | |
Data in CIF | ![]() | 15.3 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 4410MC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Components
#1: Protein | Mass: 13827.723 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: RFA3, YJL173C, J0506 / Plasmid: pRSF-Duet-1 / Production host: ![]() ![]() |
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#2: Protein | Mass: 14809.870 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: RFA2, BUF1, YNL312W, N0368 / Plasmid: pRSF-duet-1 / Production host: ![]() ![]() |
#3: Protein | Mass: 20643.072 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: RFA1, BUF2, RPA1, YAR007C, FUN3 / Plasmid: pRSF-duet-1 / Production host: ![]() ![]() |
#4: DNA chain | Mass: 6038.899 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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Molecular weight | Value: 0.12 MDa / Experimental value: NO | ||||||||||||||||||||||||
Source (natural) |
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Source (recombinant) | Organism: ![]() ![]() | ||||||||||||||||||||||||
Buffer solution | pH: 7.4 | ||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 0.5 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 R2/2 | ||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K Details: glow-discharged grid, wait time 30 seconds, blotting time 1 second |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Cs: 2.7 mm |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 2.1 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||
3D reconstruction | Resolution: 4.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 340864 / Symmetry type: POINT | ||||||||||||||||||||||||
Atomic model building | Protocol: FLEXIBLE FIT / Space: REAL |