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Yorodumi- PDB-6xez: Structure of SARS-CoV-2 replication-transcription complex bound t... -
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-Basic information
Entry | Database: PDB / ID: 6xez | ||||||
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Title | Structure of SARS-CoV-2 replication-transcription complex bound to nsp13 helicase - nsp13(2)-RTC | ||||||
Components |
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Keywords | TRANSFERASE/HYDROLASE/RNA / RNA-dependent RNA polymerase / viral replication-transcription complex / transcription / viral proteins / TRANSFERASE-HYDROLASE-RNA complex | ||||||
Function / homology | Function and homology information protein guanylyltransferase activity / RNA endonuclease activity, producing 3'-phosphomonoesters / mRNA guanylyltransferase activity / 5'-3' RNA helicase activity / Lyases; Phosphorus-oxygen lyases / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of TBK1 activity / Assembly of the SARS-CoV-2 Replication-Transcription Complex (RTC) / Maturation of replicase proteins / ISG15-specific peptidase activity / Transcription of SARS-CoV-2 sgRNAs ...protein guanylyltransferase activity / RNA endonuclease activity, producing 3'-phosphomonoesters / mRNA guanylyltransferase activity / 5'-3' RNA helicase activity / Lyases; Phosphorus-oxygen lyases / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of TBK1 activity / Assembly of the SARS-CoV-2 Replication-Transcription Complex (RTC) / Maturation of replicase proteins / ISG15-specific peptidase activity / Transcription of SARS-CoV-2 sgRNAs / Translation of Replicase and Assembly of the Replication Transcription Complex / TRAF3-dependent IRF activation pathway / Replication of the SARS-CoV-2 genome / snRNP Assembly / double membrane vesicle viral factory outer membrane / Hydrolases; Acting on ester bonds; Exoribonucleases producing 5'-phosphomonoesters / 5'-3' DNA helicase activity / SARS coronavirus main proteinase / 3'-5'-RNA exonuclease activity / host cell endoplasmic reticulum-Golgi intermediate compartment / host cell endosome / symbiont-mediated suppression of host toll-like receptor signaling pathway / symbiont-mediated degradation of host mRNA / mRNA guanylyltransferase / symbiont-mediated suppression of host ISG15-protein conjugation / G-quadruplex RNA binding / omega peptidase activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of IRF3 activity / SARS-CoV-2 modulates host translation machinery / mRNA (guanine-N7)-methyltransferase / host cell Golgi apparatus / methyltransferase cap1 / symbiont-mediated perturbation of host ubiquitin-like protein modification / DNA helicase / mRNA (nucleoside-2'-O-)-methyltransferase activity / mRNA 5'-cap (guanine-N7-)-methyltransferase activity / ubiquitinyl hydrolase 1 / cysteine-type deubiquitinase activity / Hydrolases; Acting on peptide bonds (peptidases); Cysteine endopeptidases / single-stranded RNA binding / host cell perinuclear region of cytoplasm / host cell endoplasmic reticulum membrane / viral protein processing / lyase activity / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / RNA helicase / induction by virus of host autophagy / copper ion binding / cysteine-type endopeptidase activity / RNA-directed RNA polymerase / viral RNA genome replication / virus-mediated perturbation of host defense response / RNA-dependent RNA polymerase activity / DNA-templated transcription / lipid binding / host cell nucleus / SARS-CoV-2 activates/modulates innate and adaptive immune responses / ATP hydrolysis activity / proteolysis / RNA binding / zinc ion binding / ATP binding / membrane Similarity search - Function | ||||||
Biological species | Severe acute respiratory syndrome coronavirus 2 | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.5 Å | ||||||
Authors | Chen, J. / Malone, B. / Llewellyn, E.C. / Campbell, E.A. / Darst, S.A. | ||||||
Funding support | United States, 1items
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Citation | Journal: Cell / Year: 2020 Title: Structural Basis for Helicase-Polymerase Coupling in the SARS-CoV-2 Replication-Transcription Complex. Authors: James Chen / Brandon Malone / Eliza Llewellyn / Michael Grasso / Patrick M M Shelton / Paul Dominic B Olinares / Kashyap Maruthi / Edward T Eng / Hasan Vatandaslar / Brian T Chait / Tarun M ...Authors: James Chen / Brandon Malone / Eliza Llewellyn / Michael Grasso / Patrick M M Shelton / Paul Dominic B Olinares / Kashyap Maruthi / Edward T Eng / Hasan Vatandaslar / Brian T Chait / Tarun M Kapoor / Seth A Darst / Elizabeth A Campbell / Abstract: SARS-CoV-2 is the causative agent of the 2019-2020 pandemic. The SARS-CoV-2 genome is replicated and transcribed by the RNA-dependent RNA polymerase holoenzyme (subunits nsp7/nsp8/nsp12) along with a ...SARS-CoV-2 is the causative agent of the 2019-2020 pandemic. The SARS-CoV-2 genome is replicated and transcribed by the RNA-dependent RNA polymerase holoenzyme (subunits nsp7/nsp8/nsp12) along with a cast of accessory factors. One of these factors is the nsp13 helicase. Both the holo-RdRp and nsp13 are essential for viral replication and are targets for treating the disease COVID-19. Here we present cryoelectron microscopic structures of the SARS-CoV-2 holo-RdRp with an RNA template product in complex with two molecules of the nsp13 helicase. The Nidovirales order-specific N-terminal domains of each nsp13 interact with the N-terminal extension of each copy of nsp8. One nsp13 also contacts the nsp12 thumb. The structure places the nucleic acid-binding ATPase domains of the helicase directly in front of the replicating-transcribing holo-RdRp, constraining models for nsp13 function. We also observe ADP-Mg bound in the nsp12 N-terminal nidovirus RdRp-associated nucleotidyltransferase domain, detailing a new pocket for anti-viral therapy development. #1: Journal: bioRxiv / Year: 2020 Title: Structural basis for helicase-polymerase coupling in the SARS-CoV-2 replication-transcription complex. Authors: James Chen / Brandon Malone / Eliza Llewellyn / Michael Grasso / Patrick M M Shelton / Paul Dominic B Olinares / Kashyap Maruthi / Ed Eng / Hasan Vatandaslar / Brian T Chait / Tarun Kapoor / ...Authors: James Chen / Brandon Malone / Eliza Llewellyn / Michael Grasso / Patrick M M Shelton / Paul Dominic B Olinares / Kashyap Maruthi / Ed Eng / Hasan Vatandaslar / Brian T Chait / Tarun Kapoor / Seth A Darst / Elizabeth A Campbell / Abstract: SARS-CoV-2 is the causative agent of the 2019-2020 pandemic. The SARS-CoV-2 genome is replicated-transcribed by the RNA-dependent RNA polymerase holoenzyme (subunits nsp7/nsp82/nsp12) along with a ...SARS-CoV-2 is the causative agent of the 2019-2020 pandemic. The SARS-CoV-2 genome is replicated-transcribed by the RNA-dependent RNA polymerase holoenzyme (subunits nsp7/nsp82/nsp12) along with a cast of accessory factors. One of these factors is the nsp13 helicase. Both the holo-RdRp and nsp13 are essential for viral replication and are targets for treating the disease COVID-19. Here we present cryo-electron microscopic structures of the SARS-CoV-2 holo-RdRp with an RNA template-product in complex with two molecules of the nsp13 helicase. The Nidovirus-order-specific N-terminal domains of each nsp13 interact with the N-terminal extension of each copy of nsp8. One nsp13 also contacts the nsp12-thumb. The structure places the nucleic acid-binding ATPase domains of the helicase directly in front of the replicating-transcribing holo-RdRp, constraining models for nsp13 function. We also observe ADP-Mg2+ bound in the nsp12 N-terminal nidovirus RdRp-associated nucleotidyltransferase domain, detailing a new pocket for anti-viral therapeutic development. #2: Journal: bioRxiv / Year: 2020 Title: Structural basis for helicase-polymerase coupling in the SARS-CoV-2 replication-transcription complex. Authors: James Chen / Brandon Malone / Eliza Llewellyn / Michael Grasso / Patrick M M Shelton / Paul Dominic B Olinares / Kashyap Maruthi / Ed Eng / Hasan Vatandaslar / Brian T Chait / Tarun Kapoor / ...Authors: James Chen / Brandon Malone / Eliza Llewellyn / Michael Grasso / Patrick M M Shelton / Paul Dominic B Olinares / Kashyap Maruthi / Ed Eng / Hasan Vatandaslar / Brian T Chait / Tarun Kapoor / Seth A Darst / Elizabeth A Campbell / Abstract: SARS-CoV-2 is the causative agent of the 2019-2020 pandemic. The SARS-CoV-2 genome is replicated-transcribed by the RNA-dependent RNA polymerase holoenzyme (subunits nsp7/nsp82/nsp12) along with a ...SARS-CoV-2 is the causative agent of the 2019-2020 pandemic. The SARS-CoV-2 genome is replicated-transcribed by the RNA-dependent RNA polymerase holoenzyme (subunits nsp7/nsp82/nsp12) along with a cast of accessory factors. One of these factors is the nsp13 helicase. Both the holo-RdRp and nsp13 are essential for viral replication and are targets for treating the disease COVID-19. Here we present cryo-electron microscopic structures of the SARS-CoV-2 holo-RdRp with an RNA template-product in complex with two molecules of the nsp13 helicase. The Nidovirus-order-specific N-terminal domains of each nsp13 interact with the N-terminal extension of each copy of nsp8. One nsp13 also contacts the nsp12-thumb. The structure places the nucleic acid-binding ATPase domains of the helicase directly in front of the replicating-transcribing holo-RdRp, constraining models for nsp13 function. We also observe ADP-Mg2+ bound in the nsp12 N-terminal nidovirus RdRp-associated nucleotidyltransferase domain, detailing a new pocket for anti-viral therapeutic development. | ||||||
History |
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-Structure visualization
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 6xez.cif.gz | 497.8 KB | Display | PDBx/mmCIF format |
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PDB format | pdb6xez.ent.gz | 395.6 KB | Display | PDB format |
PDBx/mmJSON format | 6xez.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 6xez_validation.pdf.gz | 1.3 MB | Display | wwPDB validaton report |
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Full document | 6xez_full_validation.pdf.gz | 1.4 MB | Display | |
Data in XML | 6xez_validation.xml.gz | 87.1 KB | Display | |
Data in CIF | 6xez_validation.cif.gz | 133.1 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/xe/6xez ftp://data.pdbj.org/pub/pdb/validation_reports/xe/6xez | HTTPS FTP |
-Related structure data
Related structure data | 22160MC 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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-Components
-Protein , 2 types, 3 molecules AEF
#1: Protein | Mass: 106780.977 Da / Num. of mol.: 1 / Fragment: UNP residues 4393-5324 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Severe acute respiratory syndrome coronavirus 2 Gene: rep, 1a-1b / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: P0DTD1, RNA-directed RNA polymerase |
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#4: Protein | Mass: 67354.039 Da / Num. of mol.: 2 / Fragment: UNP residues 5325-5925 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Severe acute respiratory syndrome coronavirus 2 Gene: rep, 1a-1b / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: P0DTD1, DNA helicase, RNA helicase |
-Non-structural protein ... , 2 types, 3 molecules BDC
#2: Protein | Mass: 22034.242 Da / Num. of mol.: 2 / Fragment: UNP residues 3943-4140 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Severe acute respiratory syndrome coronavirus 2 Gene: rep, 1a-1b / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: P0DTD1 #3: Protein | | Mass: 9748.385 Da / Num. of mol.: 1 / Fragment: UNP residues 3860-3942 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Severe acute respiratory syndrome coronavirus 2 Gene: rep, 1a-1b / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: P0DTD1 |
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-RNA chain , 2 types, 2 molecules PT
#5: RNA chain | Mass: 11141.644 Da / Num. of mol.: 1 / Source method: obtained synthetically Source: (synth.) Severe acute respiratory syndrome coronavirus 2 |
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#6: RNA chain | Mass: 17573.391 Da / Num. of mol.: 1 / Source method: obtained synthetically Source: (synth.) Severe acute respiratory syndrome coronavirus 2 |
-Non-polymers , 5 types, 19 molecules
#7: Chemical | ChemComp-ZN / #8: Chemical | #9: Chemical | #10: Chemical | #11: Chemical | |
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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: SARS-CoV-2 replication/transcription complex bound to nsp13 helicase - nsp13(2)-RTC Type: COMPLEX / Entity ID: #1-#6 / Source: RECOMBINANT |
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Source (natural) | Organism: Severe acute respiratory syndrome coronavirus 2 |
Source (recombinant) | Organism: Escherichia coli BL21(DE3) (bacteria) |
Buffer solution | pH: 8 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Details: unspecified |
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 FIELD |
Image recording | Electron dose: 65 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-Processing
Software | Name: PHENIX / Version: 1.17.1_3660: / Classification: refinement | ||||||||||||||||||||||||
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 58942 / Symmetry type: POINT | ||||||||||||||||||||||||
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