+Open data
-Basic information
Entry | Database: PDB / ID: 8dqw | ||||||||||||
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Title | Open state of Rad24-RFC:9-1-1 bound to a 5' ss/dsDNA junction | ||||||||||||
Components |
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Keywords | REPLICATION/DNA / DNA damage checkpoint / REPLICATION-DNA complex | ||||||||||||
Function / homology | Function and homology information meiotic DNA integrity checkpoint signaling / checkpoint clamp complex / cell cycle / DNA clamp unloading / Rad17 RFC-like complex / Gap-filling DNA repair synthesis and ligation in GG-NER / Elg1 RFC-like complex / Ctf18 RFC-like complex / DNA replication factor C complex / Polymerase switching ...meiotic DNA integrity checkpoint signaling / checkpoint clamp complex / cell cycle / DNA clamp unloading / Rad17 RFC-like complex / Gap-filling DNA repair synthesis and ligation in GG-NER / Elg1 RFC-like complex / Ctf18 RFC-like complex / DNA replication factor C complex / Polymerase switching / DNA clamp loader activity / telomere maintenance via recombination / Translesion synthesis by REV1 / Translesion synthesis by POLK / Translesion synthesis by POLI / Translesion Synthesis by POLH / DNA replication checkpoint signaling / Activation of ATR in response to replication stress / Termination of translesion DNA synthesis / mitotic DNA replication checkpoint signaling / reciprocal meiotic recombination / mitotic intra-S DNA damage checkpoint signaling / recombinational repair / sister chromatid cohesion / mitotic sister chromatid cohesion / leading strand elongation / Gap-filling DNA repair synthesis and ligation in TC-NER / Dual incision in TC-NER / subtelomeric heterochromatin formation / mismatch repair / 3'-5' exonuclease activity / telomere maintenance / DNA damage checkpoint signaling / meiotic cell cycle / cellular response to ionizing radiation / nucleotide-excision repair / double-strand break repair via homologous recombination / DNA-templated DNA replication / double-strand break repair / site of double-strand break / double-stranded DNA binding / damaged DNA binding / chromosome, telomeric region / DNA repair / ATP hydrolysis activity / DNA binding / ATP binding / nucleus / cytosol Similarity search - Function | ||||||||||||
Biological species | Saccharomyces cerevisiae (brewer's yeast) | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.1 Å | ||||||||||||
Authors | Schrecker, M. / Hite, R.K. | ||||||||||||
Funding support | United States, 3items
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Citation | Journal: Elife / Year: 2022 Title: Multistep loading of a DNA sliding clamp onto DNA by replication factor C. Authors: Marina Schrecker / Juan C Castaneda / Sujan Devbhandari / Charanya Kumar / Dirk Remus / Richard K Hite / Abstract: The DNA sliding clamp proliferating cell nuclear antigen (PCNA) is an essential co-factor for many eukaryotic DNA metabolic enzymes. PCNA is loaded around DNA by the ATP-dependent clamp loader ...The DNA sliding clamp proliferating cell nuclear antigen (PCNA) is an essential co-factor for many eukaryotic DNA metabolic enzymes. PCNA is loaded around DNA by the ATP-dependent clamp loader replication factor C (RFC), which acts at single-stranded (ss)/double-stranded DNA (dsDNA) junctions harboring a recessed 3' end (3' ss/dsDNA junctions) and at DNA nicks. To illuminate the loading mechanism we have investigated the structure of RFC:PCNA bound to ATPγS and 3' ss/dsDNA junctions or nicked DNA using cryogenic electron microscopy. Unexpectedly, we observe open and closed PCNA conformations in the RFC:PCNA:DNA complex, revealing that PCNA can adopt an open, planar conformation that allows direct insertion of dsDNA, and raising the question of whether PCNA ring closure is mechanistically coupled to ATP hydrolysis. By resolving multiple DNA-bound states of RFC:PCNA we observe that partial melting facilitates lateral insertion into the central channel formed by RFC:PCNA. We also resolve the Rfc1 N-terminal domain and demonstrate that its single BRCT domain participates in coordinating DNA prior to insertion into the central RFC channel, which promotes PCNA loading on the lagging strand of replication forks in vitro. Combined, our data suggest a comprehensive and fundamentally revised model for the RFC-catalyzed loading of PCNA onto DNA. | ||||||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8dqw.cif.gz | 1.1 MB | Display | PDBx/mmCIF format |
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PDB format | pdb8dqw.ent.gz | 901.2 KB | Display | PDB format |
PDBx/mmJSON format | 8dqw.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 8dqw_validation.pdf.gz | 1.5 MB | Display | wwPDB validaton report |
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Full document | 8dqw_full_validation.pdf.gz | 1.6 MB | Display | |
Data in XML | 8dqw_validation.xml.gz | 86.6 KB | Display | |
Data in CIF | 8dqw_validation.cif.gz | 132.7 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/dq/8dqw ftp://data.pdbj.org/pub/pdb/validation_reports/dq/8dqw | HTTPS FTP |
-Related structure data
Related structure data | 27662MC 8dqxC 8dqzC 8dr0C 8dr1C 8dr3C 8dr4C 8dr5C 8dr6C 8dr7C 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
-Replication factor C subunit ... , 4 types, 4 molecules BCDE
#1: Protein | Mass: 36201.039 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast) Gene: RFC4, YOL094C, O0923 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P40339 |
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#2: Protein | Mass: 38254.543 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast) Strain: ATCC 204508 / S288c / Gene: RFC3, YNL290W, N0533 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P38629 |
#3: Protein | Mass: 39794.473 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast) Gene: RFC2, YJR068W, J1808 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P40348 |
#4: Protein | Mass: 39993.582 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast) Gene: RFC5, YBR087W, YBR0810 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P38251 |
-DNA damage checkpoint control protein ... , 2 types, 2 molecules FH
#5: Protein | Mass: 45637.527 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast) Gene: RAD17, GI527_G0005737 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: A0A8H4BW58 |
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#7: Protein | Mass: 53207.797 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast) Strain: ATCC 204508 / S288c / Gene: MEC3, PIP3, PSO9, YLR288C, L8003.15 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: Q02574 |
-Protein , 2 types, 2 molecules GA
#6: Protein | Mass: 73850.672 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast) Gene: DDC1, GI527_G0005854 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: A0A8H4BUG7 |
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#8: Protein | Mass: 80096.828 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast) Gene: RAD24, GI527_G0001991 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: A0A8H8UM36 |
-DNA chain , 2 types, 2 molecules JI
#9: DNA chain | Mass: 21507.701 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Saccharomyces cerevisiae (brewer's yeast) |
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#10: DNA chain | Mass: 5972.841 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Saccharomyces cerevisiae (brewer's yeast) |
-Non-polymers , 4 types, 438 molecules
#11: Chemical | ChemComp-MG / #12: Chemical | ChemComp-AGS / #13: Chemical | ChemComp-GDP / | #14: Water | ChemComp-HOH / | |
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-Details
Has ligand of interest | Y |
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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: Open state of Rad24-RFC:9-1-1 bound to a 5' ss/dsDNA junction Type: COMPLEX / Entity ID: #1, #3-#10 / Source: RECOMBINANT | ||||||||||||||||
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Molecular weight | Experimental value: NO | ||||||||||||||||
Source (natural) | Organism: Saccharomyces cerevisiae (brewer's yeast) | ||||||||||||||||
Source (recombinant) | Organism: Saccharomyces cerevisiae (brewer's yeast) | ||||||||||||||||
Buffer solution | pH: 7.6 | ||||||||||||||||
Buffer component |
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Specimen | Conc.: 1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||
Specimen support | Grid material: GRAPHENE OXIDE / Grid mesh size: 400 divisions/in. / Grid type: Quantifoil R1.2/1.3 | ||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 297 K |
-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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 700 nm |
Image recording | Electron dose: 66 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-Processing
Software | Name: PHENIX / Version: 1.20.1_4487: / Classification: refinement | ||||||||||||||||||||||||
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 2.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 938420 / Symmetry type: POINT | ||||||||||||||||||||||||
Atomic model building | PDB-ID: 7ST9 Accession code: 7ST9 / Source name: PDB / Type: experimental model | ||||||||||||||||||||||||
Refine LS restraints |
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