- EMDB-10401: Cryo-EM structure of the DNA-bound PolD-PCNA processive complex f... -
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Open data
ID or keywords:
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Basic information
Entry
Database: EMDB / ID: EMD-10401
Title
Cryo-EM structure of the DNA-bound PolD-PCNA processive complex from P. abyssi
Map data
Post processed and masked map of the PolD-PCNA-DNA from P. abyssi
Sample
Complex: DNA-bound PolD-PCNA processive complex from P. abyssi
Complex: PolD-PCNA processive complex
Protein or peptide: DNA polymerase sliding clamp
Protein or peptide: DNA polymerase II small subunit
Protein or peptide: DP2 subunit of D-family DNA-polymerase
Complex: DNA
DNA: DNA primer
DNA: DNA template
Ligand: FE (III) ION
Ligand: ZINC ION
Keywords
PCNA / DP2 / PolD / DP1 / REPLICATION / PIP-box
Function / homology
Function and homology information
exodeoxyribonuclease I / DNA polymerase complex / intein-mediated protein splicing / single-stranded DNA 3'-5' DNA exonuclease activity / DNA catabolic process / DNA strand elongation involved in DNA replication / DNA polymerase processivity factor activity / leading strand elongation / regulation of DNA replication / DNA-templated DNA replication ...exodeoxyribonuclease I / DNA polymerase complex / intein-mediated protein splicing / single-stranded DNA 3'-5' DNA exonuclease activity / DNA catabolic process / DNA strand elongation involved in DNA replication / DNA polymerase processivity factor activity / leading strand elongation / regulation of DNA replication / DNA-templated DNA replication / DNA-directed DNA polymerase / DNA-directed DNA polymerase activity / DNA binding Similarity search - Function
DNA polymerase II large subunit DP2 / DNA polymerase II large subunit DP2, N-terminal / : / : / DNA polymerase II large subunit DP2, N-terminal / DNA polymerase II large subunit DP2, central domain / DNA polymerase II large subunit DP2, catalytic domain / DNA polymerase II small subunit, archaeal / : / DNA polymerase II small subunit, N-terminal domain ...DNA polymerase II large subunit DP2 / DNA polymerase II large subunit DP2, N-terminal / : / : / DNA polymerase II large subunit DP2, N-terminal / DNA polymerase II large subunit DP2, central domain / DNA polymerase II large subunit DP2, catalytic domain / DNA polymerase II small subunit, archaeal / : / DNA polymerase II small subunit, N-terminal domain / DNA polymerase delta/II small subunit family / Intein splicing domain / Intein C-terminal splicing region / Intein C-terminal splicing motif profile. / Intein N-terminal splicing region / Intein N-terminal splicing motif profile. / Hint domain N-terminal / Hint (Hedgehog/Intein) domain N-terminal region / Hint domain superfamily / Proliferating cell nuclear antigen, PCNA, conserved site / Proliferating cell nuclear antigen signature 1. / Proliferating cell nuclear antigen, PCNA / Proliferating cell nuclear antigen, PCNA, N-terminal / Proliferating cell nuclear antigen, PCNA, C-terminal / Proliferating cell nuclear antigen, N-terminal domain / Proliferating cell nuclear antigen, C-terminal domain / Calcineurin-like phosphoesterase domain, ApaH type / Calcineurin-like phosphoesterase / : / Metallo-dependent phosphatase-like / Nucleic acid-binding, OB-fold Similarity search - Domain/homology
DNA polymerase sliding clamp / DNA polymerase II small subunit / DNA polymerase II large subunit Similarity search - Component
Journal: Nat Commun / Year: 2020 Title: Structural basis for the increased processivity of D-family DNA polymerases in complex with PCNA. Authors: Clément Madru / Ghislaine Henneke / Pierre Raia / Inès Hugonneau-Beaufet / Gérard Pehau-Arnaudet / Patrick England / Erik Lindahl / Marc Delarue / Marta Carroni / Ludovic Sauguet / Abstract: Replicative DNA polymerases (DNAPs) have evolved the ability to copy the genome with high processivity and fidelity. In Eukarya and Archaea, the processivity of replicative DNAPs is greatly enhanced ...Replicative DNA polymerases (DNAPs) have evolved the ability to copy the genome with high processivity and fidelity. In Eukarya and Archaea, the processivity of replicative DNAPs is greatly enhanced by its binding to the proliferative cell nuclear antigen (PCNA) that encircles the DNA. We determined the cryo-EM structure of the DNA-bound PolD-PCNA complex from Pyrococcus abyssi at 3.77 Å. Using an integrative structural biology approach - combining cryo-EM, X-ray crystallography, protein-protein interaction measurements, and activity assays - we describe the molecular basis for the interaction and cooperativity between a replicative DNAP and PCNA. PolD recruits PCNA via a complex mechanism, which requires two different PIP-boxes. We infer that the second PIP-box, which is shared with the eukaryotic Polα replicative DNAP, plays a dual role in binding either PCNA or primase, and could be a master switch between an initiation and a processive phase during replication.
History
Deposition
Oct 24, 2019
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Header (metadata) release
Mar 4, 2020
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Map release
Mar 4, 2020
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Update
Nov 20, 2024
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Current status
Nov 20, 2024
Processing site: PDBe / Status: Released
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Structure visualization
Movie
Surface view with section colored by density value
Name: DNA polymerase II small subunit / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA-directed DNA polymerase
Name: FE (III) ION / type: ligand / ID: 6 / Number of copies: 1 / Formula: FE
Molecular weight
Theoretical: 55.845 Da
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Macromolecule #7: ZINC ION
Macromolecule
Name: ZINC ION / type: ligand / ID: 7 / Number of copies: 4 / Formula: ZN
Molecular weight
Theoretical: 65.409 Da
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Experimental details
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Structure determination
Method
cryo EM
Processing
single particle reconstruction
Aggregation state
particle
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Sample preparation
Concentration
0.1 mg/mL
Buffer
pH: 8
Grid
Model: C-flat-2/2 4C / Material: COPPER / Mesh: 400 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 30 sec. / Pretreatment - Atmosphere: AIR / Details: 5mA current
Vitrification
Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 293 K / Instrument: FEI VITROBOT MARK IV
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Electron microscopy
Microscope
FEI TITAN KRIOS
Specialist optics
Energy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV
Image recording
Film or detector model: GATAN K2 QUANTUM (4k x 4k) / Detector mode: COUNTING / Digitization - Frames/image: 1-40 / Number grids imaged: 1 / Number real images: 4602 / Average exposure time: 5.0 sec. / Average electron dose: 40.0 e/Å2
Electron beam
Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
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