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- PDB-8dr3: Closed state of RFC:PCNA bound to a 3' ss/dsDNA junction (DNA2) w... -
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Open data
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Basic information
Entry | Database: PDB / ID: 8dr3 | ||||||||||||
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Title | Closed state of RFC:PCNA bound to a 3' ss/dsDNA junction (DNA2) with NTD | ||||||||||||
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![]() | REPLICATION/DNA / REPLICATION-DNA complex | ||||||||||||
Function / homology | ![]() DNA clamp unloading / Mismatch repair (MMR) directed by MSH2:MSH6 (MutSalpha) / Gap-filling DNA repair synthesis and ligation in GG-NER / meiotic mismatch repair / Rad17 RFC-like complex / Processive synthesis on the lagging strand / Removal of the Flap Intermediate / Ctf18 RFC-like complex / DNA clamp loader activity / DNA replication factor C complex ...DNA clamp unloading / Mismatch repair (MMR) directed by MSH2:MSH6 (MutSalpha) / Gap-filling DNA repair synthesis and ligation in GG-NER / meiotic mismatch repair / Rad17 RFC-like complex / Processive synthesis on the lagging strand / Removal of the Flap Intermediate / Ctf18 RFC-like complex / DNA clamp loader activity / DNA replication factor C complex / Elg1 RFC-like complex / E3 ubiquitin ligases ubiquitinate target proteins / Polymerase switching / SUMOylation of DNA replication proteins / positive regulation of DNA metabolic process / maintenance of DNA trinucleotide repeats / Translesion Synthesis by POLH / Translesion synthesis by REV1 / Translesion synthesis by POLK / Translesion synthesis by POLI / establishment of mitotic sister chromatid cohesion / DNA replication checkpoint signaling / PCNA complex / Activation of ATR in response to replication stress / Termination of translesion DNA synthesis / lagging strand elongation / postreplication repair / sister chromatid cohesion / silent mating-type cassette heterochromatin formation / mitotic sister chromatid cohesion / error-free translesion synthesis / DNA polymerase processivity factor activity / leading strand elongation / Gap-filling DNA repair synthesis and ligation in TC-NER / Dual incision in TC-NER / subtelomeric heterochromatin formation / mismatch repair / translesion synthesis / positive regulation of DNA repair / positive regulation of DNA replication / DNA damage checkpoint signaling / replication fork / nucleotide-excision repair / DNA-templated DNA replication / mitotic cell cycle / chromosome, telomeric region / cell division / DNA repair / ATP hydrolysis activity / DNA binding / ATP binding / identical protein binding / nucleus / cytosol Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() | ||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.2 Å | ||||||||||||
![]() | Schrecker, M. / Hite, R.K. | ||||||||||||
Funding support | ![]()
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![]() | ![]() 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: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 1.1 MB | Display | ![]() |
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PDB format | ![]() | 891.4 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 27669MC ![]() 8dqwC ![]() 8dqxC ![]() 8dqzC ![]() 8dr0C ![]() 8dr1C ![]() 8dr4C ![]() 8dr5C ![]() 8dr6C ![]() 8dr7C M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
-Replication factor C subunit ... , 5 types, 5 molecules ABCDE
#1: Protein | Mass: 101689.086 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: RFC1, CDC44, YOR217W, YOR50-7 / Production host: ![]() ![]() |
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#2: Protein | Mass: 36201.039 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: RFC4, YOL094C, O0923 / Production host: ![]() ![]() |
#3: Protein | Mass: 38254.543 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: RFC3, YNL290W, N0533 / Production host: ![]() ![]() |
#4: Protein | Mass: 39794.473 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: RFC2, YJR068W, J1808 / Production host: ![]() ![]() |
#5: Protein | Mass: 39993.582 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Gene: RFC5, YBR087W, YBR0810 / Production host: ![]() ![]() |
-Protein , 1 types, 3 molecules FGH
#6: Protein | Mass: 30991.285 Da / Num. of mol.: 3 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Strain: ATCC 204508 / S288c / Gene: POL30, YBR088C, YBR0811 / Production host: ![]() ![]() |
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-DNA chain , 4 types, 4 molecules IJKL
#7: DNA chain | Mass: 6014.843 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
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#8: DNA chain | Mass: 5320.411 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() Production host: ![]() ![]() |
#9: DNA chain | Mass: 4152.694 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
#10: DNA chain | Mass: 3759.439 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
-Non-polymers , 4 types, 21 molecules ![](data/chem/img/AGS.gif)
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#11: Chemical | ChemComp-AGS / #12: Chemical | ChemComp-MG / #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 |
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Sample preparation
Component | Name: Closed state of RFC:PCNA bound to a 3' ss/dsDNA junction (DNA2) with NTD Type: COMPLEX / Entity ID: #1-#10 / Source: RECOMBINANT | ||||||||||||||||
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Molecular weight | Experimental value: NO | ||||||||||||||||
Source (natural) | Organism: ![]() ![]() | ||||||||||||||||
Source (recombinant) | Organism: ![]() ![]() | ||||||||||||||||
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 |
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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 / 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) |
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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: 2.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 356424 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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