+Open data
-Basic information
Entry | Database: PDB / ID: 7s0t | ||||||
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Title | Structure of DNA polymerase zeta with mismatched DNA | ||||||
Components |
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Keywords | DNA BINDING PROTEIN/DNA / DNA repair / DNA replication / translesion DNA synthesis / DNA polymerase / DNA BINDING PROTEIN-DNA complex | ||||||
Function / homology | Function and homology information delta DNA polymerase complex / DNA amplification / zeta DNA polymerase complex / RNA-templated DNA biosynthetic process / Translesion synthesis by REV1 / Translesion synthesis by POLK / Translesion synthesis by POLI / DNA replication, removal of RNA primer / double-strand break repair via break-induced replication / lagging strand elongation ...delta DNA polymerase complex / DNA amplification / zeta DNA polymerase complex / RNA-templated DNA biosynthetic process / Translesion synthesis by REV1 / Translesion synthesis by POLK / Translesion synthesis by POLI / DNA replication, removal of RNA primer / double-strand break repair via break-induced replication / lagging strand elongation / DNA strand elongation involved in DNA replication / DNA metabolic process / error-free translesion synthesis / leading strand elongation / error-prone translesion synthesis / nucleotide-excision repair / double-strand break repair via homologous recombination / base-excision repair / 4 iron, 4 sulfur cluster binding / DNA replication / DNA-directed DNA polymerase / DNA-directed DNA polymerase activity / nucleotide binding / chromatin / mitochondrion / DNA binding / metal ion binding / nucleus Similarity search - Function | ||||||
Biological species | Saccharomyces cerevisiae (brewer's yeast) synthetic construct (others) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.05 Å | ||||||
Authors | Malik, R. / Ubarretxena, I.B. / Aggarwal, A.K. | ||||||
Funding support | United States, 1items
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Citation | Journal: Nat Commun / Year: 2022 Title: Cryo-EM structure of translesion DNA synthesis polymerase ζ with a base pair mismatch. Authors: Radhika Malik / Robert E Johnson / Louise Prakash / Satya Prakash / Iban Ubarretxena-Belandia / Aneel K Aggarwal / Abstract: The B-family multi-subunit DNA polymerase ζ (Polζ) is important for translesion DNA synthesis (TLS) during replication, due to its ability to extend synthesis past nucleotides opposite DNA lesions ...The B-family multi-subunit DNA polymerase ζ (Polζ) is important for translesion DNA synthesis (TLS) during replication, due to its ability to extend synthesis past nucleotides opposite DNA lesions and mismatched base pairs. We present a cryo-EM structure of Saccharomyces cerevisiae Polζ with an A:C mismatch at the primer terminus. The structure shows how the Polζ active site responds to the mismatched duplex DNA distortion, including the loosening of key protein-DNA interactions and a fingers domain in an "open" conformation, while the incoming dCTP is still able to bind for the extension reaction. The structure of the mismatched DNA-Polζ ternary complex reveals insights into mechanisms that either stall or favor continued DNA synthesis in eukaryotes. | ||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 7s0t.cif.gz | 423.7 KB | Display | PDBx/mmCIF format |
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PDB format | pdb7s0t.ent.gz | 317.3 KB | Display | PDB format |
PDBx/mmJSON format | 7s0t.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/s0/7s0t ftp://data.pdbj.org/pub/pdb/validation_reports/s0/7s0t | HTTPS FTP |
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-Related structure data
Related structure data | 24793MC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
-DNA polymerase zeta ... , 2 types, 3 molecules ADE
#1: Protein | Mass: 177068.516 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: REV3, PSO1, YPL167C, P2535 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P14284, DNA-directed DNA polymerase |
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#2: Protein | Mass: 28791.654 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast) Strain: ATCC 204508 / S288c / Gene: REV7, YIL139C / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P38927 |
-DNA polymerase delta ... , 2 types, 2 molecules FG
#3: Protein | Mass: 55987.352 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast) Gene: PACBIOSEQ_LOCUS3277, PACBIOSEQ_LOCUS3308 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: A0A6A5PTG9 |
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#4: Protein | Mass: 40377.715 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: POL32, YJR043C, J1626 / Production host: Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P47110 |
-DNA chain , 1 types, 2 molecules PT
#5: DNA chain | Mass: 9232.955 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
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-Non-polymers , 4 types, 34 molecules
#6: Chemical | ChemComp-SF4 / |
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#7: Chemical | ChemComp-CA / |
#8: Chemical | ChemComp-DCP / |
#9: Water | ChemComp-HOH / |
-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: Structure of DNA complex / Type: COMPLEX / Entity ID: #1-#5 / Source: MULTIPLE SOURCES |
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Source (natural) | Organism: Saccharomyces cerevisiae (brewer's yeast) |
Source (recombinant) | Organism: Saccharomyces cerevisiae (brewer's yeast) |
Buffer solution | pH: 7.8 |
Specimen | Embedding applied: YES / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
EM embedding | Material: Vitreous ice |
Vitrification | Cryogen name: ETHANE |
-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 FIELDBright-field microscopy / Nominal defocus max: 2500 nm / Nominal defocus min: 500 nm |
Image recording | Electron dose: 64.82 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
-Processing
Software | Name: PHENIX / Version: 1.19.1_4122: / Classification: refinement | ||||||||||||||||||||||||
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.05 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 120985 / Symmetry type: POINT | ||||||||||||||||||||||||
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