[English] 日本語
Yorodumi
- PDB-8jsm: The structure of EBOV L-VP35-RNA complex (conformation 1) -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 8jsm
TitleThe structure of EBOV L-VP35-RNA complex (conformation 1)
Components
  • Polymerase cofactor VP35
  • RNA-directed RNA polymerase L
  • The leader sequence of EBOV genome.
KeywordsVIRAL PROTEIN/RNA / EBOV / Polymerase / Replication / cryo-EM / VIRAL PROTEIN-RNA complex
Function / homology
Function and homology information


GDP polyribonucleotidyltransferase / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of IRF7 activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of IKBKE activity / Hydrolases; Acting on acid anhydrides; In phosphorus-containing anhydrides / Transferases; Transferring one-carbon groups; Methyltransferases / virion component / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of TBK1 activity / symbiont-mediated suppression of host toll-like receptor signaling pathway / mRNA 5'-cap (guanine-N7-)-methyltransferase activity / host cell cytoplasm ...GDP polyribonucleotidyltransferase / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of IRF7 activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of IKBKE activity / Hydrolases; Acting on acid anhydrides; In phosphorus-containing anhydrides / Transferases; Transferring one-carbon groups; Methyltransferases / virion component / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of TBK1 activity / symbiont-mediated suppression of host toll-like receptor signaling pathway / mRNA 5'-cap (guanine-N7-)-methyltransferase activity / host cell cytoplasm / RNA-directed RNA polymerase / RNA-dependent RNA polymerase activity / GTPase activity / ATP binding / cytoplasm
Similarity search - Function
RNA-directed RNA polymerase L, filovirus / Filoviruses VP35 interferon inhibitory domain, beta-sheet subdomain / Filoviridae VP35 protein / Filoviruses VP35 interferon inhibitory domain / Filoviruses VP35 interferon inhibitory domain, helical subdomain / Filoviridae VP35 / Filoviruses VP35 interferon inhibitory domain profile. / Mononegavirales RNA-directed RNA polymerase catalytic domain / Mononegavirus L protein 2-O-ribose methyltransferase / Mononegavirales mRNA-capping domain V ...RNA-directed RNA polymerase L, filovirus / Filoviruses VP35 interferon inhibitory domain, beta-sheet subdomain / Filoviridae VP35 protein / Filoviruses VP35 interferon inhibitory domain / Filoviruses VP35 interferon inhibitory domain, helical subdomain / Filoviridae VP35 / Filoviruses VP35 interferon inhibitory domain profile. / Mononegavirales RNA-directed RNA polymerase catalytic domain / Mononegavirus L protein 2-O-ribose methyltransferase / Mononegavirales mRNA-capping domain V / RNA-directed RNA polymerase L, C-terminal / Mononegavirales RNA dependent RNA polymerase / Mononegavirales mRNA-capping region V / RdRp of negative ssRNA viruses with non-segmented genomes catalytic domain profile. / Mononegavirus L protein 2'-O-ribose methyltransferase domain profile.
Similarity search - Domain/homology
RNA / RNA (> 10) / RNA-directed RNA polymerase L / Polymerase cofactor VP35
Similarity search - Component
Biological speciesEbola virus
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.3 Å
AuthorsQi, P. / Yi, S.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32192452 China
CitationJournal: Nature / Year: 2023
Title: Molecular mechanism of de novo replication by the Ebola virus polymerase.
Authors: Qi Peng / Bin Yuan / Jinlong Cheng / Min Wang / Siwei Gao / Suran Bai / Xuejin Zhao / Jianxun Qi / George F Gao / Yi Shi /
Abstract: Non-segmented negative-strand RNA viruses, including Ebola virus (EBOV), rabies virus, human respiratory syncytial virus and pneumoviruses, can cause respiratory infections, haemorrhagic fever and ...Non-segmented negative-strand RNA viruses, including Ebola virus (EBOV), rabies virus, human respiratory syncytial virus and pneumoviruses, can cause respiratory infections, haemorrhagic fever and encephalitis in humans and animals, and are considered a substantial health and economic burden worldwide. Replication and transcription of the viral genome are executed by the large (L) polymerase, which is a promising target for the development of antiviral drugs. Here, using the L polymerase of EBOV as a representative, we show that de novo replication of L polymerase is controlled by the specific 3' leader sequence of the EBOV genome in an enzymatic assay, and that formation of at least three base pairs can effectively drive the elongation process of RNA synthesis independent of the specific RNA sequence. We present the high-resolution structures of the EBOV L-VP35-RNA complex and show that the 3' leader RNA binds in the template entry channel with a distinctive stable bend conformation. Using mutagenesis assays, we confirm that the bend conformation of the RNA is required for the de novo replication activity and reveal the key residues of the L protein that stabilize the RNA conformation. These findings provide a new mechanistic understanding of RNA synthesis for polymerases of non-segmented negative-strand RNA viruses, and reveal important targets for the development of antiviral drugs.
History
DepositionJun 20, 2023Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Sep 27, 2023Provider: repository / Type: Initial release
Revision 1.1Nov 1, 2023Group: Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID

-
Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: RNA-directed RNA polymerase L
B: Polymerase cofactor VP35
C: Polymerase cofactor VP35
D: Polymerase cofactor VP35
E: Polymerase cofactor VP35
G: The leader sequence of EBOV genome.
hetero molecules


Theoretical massNumber of molelcules
Total (without water)408,5067
Polymers408,4416
Non-polymers651
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

-
Components

#1: Protein RNA-directed RNA polymerase L / Protein L / Large structural protein / Replicase / Transcriptase


Mass: 252863.734 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Ebola virus / Gene: L / Production host: Spodoptera (butterflies/moths)
References: UniProt: A0A1C4HDB0, RNA-directed RNA polymerase, Hydrolases; Acting on acid anhydrides; In phosphorus-containing anhydrides, GDP polyribonucleotidyltransferase, Transferases; ...References: UniProt: A0A1C4HDB0, RNA-directed RNA polymerase, Hydrolases; Acting on acid anhydrides; In phosphorus-containing anhydrides, GDP polyribonucleotidyltransferase, Transferases; Transferring one-carbon groups; Methyltransferases
#2: Protein
Polymerase cofactor VP35


Mass: 37489.430 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Ebola virus / Gene: VP35 / Production host: Spodoptera (butterflies/moths) / References: UniProt: A0A1C4HDK9
#3: RNA chain The leader sequence of EBOV genome.


Mass: 5619.235 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Ebola virus
#4: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn / Feature type: SUBJECT OF INVESTIGATION
Has ligand of interestY

-
Experimental details

-
Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

-
Sample preparation

ComponentName: The structure of EBOV L-VP35-RNA complex (conformation 1)
Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT
Source (natural)Organism: Ebola virus
Source (recombinant)Organism: Spodoptera (butterflies/moths)
Buffer solutionpH: 7.8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

-
Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 3000 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

-
Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 197788 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00315209
ELECTRON MICROSCOPYf_angle_d0.54620719
ELECTRON MICROSCOPYf_dihedral_angle_d14.9455608
ELECTRON MICROSCOPYf_chiral_restr0.0382383
ELECTRON MICROSCOPYf_plane_restr0.0042616

+
About Yorodumi

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242)：Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi

Thousand views of thousand structures

  • Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
  • This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
  • The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.

Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi

Read more