[English] 日本語
Yorodumi
- EMDB-37424: CryoEM structure of non-structural protein 1 tetramer from ZIKA virus -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: EMDB / ID: EMD-37424
TitleCryoEM structure of non-structural protein 1 tetramer from ZIKA virus
Map data
Sample
  • Complex: ZIKA virus non-structural protein 1 tetramer
    • Protein or peptide: Genome polyprotein
Keywordsflavivirus / non-structural protein 1 / VIRAL PROTEIN
Function / homology
Function and homology information


ribonucleoside triphosphate phosphatase activity / viral capsid / double-stranded RNA binding / methyltransferase cap1 activity / mRNA 5'-cap (guanine-N7-)-methyltransferase activity / RNA helicase activity / protein dimerization activity / symbiont-mediated suppression of host innate immune response / host cell endoplasmic reticulum membrane / serine-type endopeptidase activity ...ribonucleoside triphosphate phosphatase activity / viral capsid / double-stranded RNA binding / methyltransferase cap1 activity / mRNA 5'-cap (guanine-N7-)-methyltransferase activity / RNA helicase activity / protein dimerization activity / symbiont-mediated suppression of host innate immune response / host cell endoplasmic reticulum membrane / serine-type endopeptidase activity / viral RNA genome replication / RNA-directed RNA polymerase activity / fusion of virus membrane with host endosome membrane / symbiont entry into host cell / virion attachment to host cell / host cell nucleus / virion membrane / structural molecule activity / proteolysis / extracellular region / ATP binding / metal ion binding / membrane
Similarity search - Function
Flavivirus capsid protein C superfamily / Flavivirus non-structural protein NS2B / Genome polyprotein, Flavivirus / : / Flavivirus non-structural protein NS4A / Flavivirus non-structural protein NS2B / Flavivirus non-structural protein NS4B / mRNA cap 0/1 methyltransferase / Flavivirus non-structural protein NS4B / Flavivirus non-structural protein NS4A ...Flavivirus capsid protein C superfamily / Flavivirus non-structural protein NS2B / Genome polyprotein, Flavivirus / : / Flavivirus non-structural protein NS4A / Flavivirus non-structural protein NS2B / Flavivirus non-structural protein NS4B / mRNA cap 0/1 methyltransferase / Flavivirus non-structural protein NS4B / Flavivirus non-structural protein NS4A / Flavivirus NS2B domain profile. / mRNA cap 0 and cap 1 methyltransferase (EC 2.1.1.56 and EC 2.1.1.57) domain profile. / Flavivirus non-structural protein NS2A / Flavivirus non-structural protein NS2A / Flavivirus NS3, petidase S7 / Peptidase S7, Flavivirus NS3 serine protease / Flavivirus NS3 protease (NS3pro) domain profile. / RNA-directed RNA polymerase, thumb domain, Flavivirus / Flavivirus RNA-directed RNA polymerase, thumb domain / RNA-directed RNA polymerase, flavivirus / Flavivirus RNA-directed RNA polymerase, fingers and palm domains / Flavivirus capsid protein C / Flavivirus capsid protein C / Flavivirus non-structural Protein NS1 / Flavivirus non-structural protein NS1 / Envelope glycoprotein M, flavivirus / Envelope glycoprotein M superfamily, flavivirus / Flavivirus envelope glycoprotein M / Flavivirus polyprotein propeptide / Flavivirus polyprotein propeptide superfamily / Flavivirus polyprotein propeptide / Flavivirus envelope glycoprotein E, stem/anchor domain / : / Flavivirus NS3 helicase, C-terminal helical domain / Flavivirus envelope glycoprotein E, Stem/Anchor domain / Flavivirus envelope glycoprotein E, Stem/Anchor domain superfamily / Flavivirus glycoprotein E, immunoglobulin-like domain / Flavivirus glycoprotein, immunoglobulin-like domain / Flavivirus glycoprotein central and dimerisation domain / Flavivirus glycoprotein, central and dimerisation domains / Flaviviral glycoprotein E, central domain, subdomain 1 / Flaviviral glycoprotein E, central domain, subdomain 2 / Ribosomal RNA methyltransferase, FtsJ domain / FtsJ-like methyltransferase / Flavivirus/Alphavirus glycoprotein, immunoglobulin-like domain superfamily / Flavivirus glycoprotein, central and dimerisation domain superfamily / Flaviviral glycoprotein E, dimerisation domain / DEAD box, Flavivirus / Flavivirus DEAD domain / helicase superfamily c-terminal domain / Immunoglobulin E-set / Superfamilies 1 and 2 helicase C-terminal domain profile. / Superfamilies 1 and 2 helicase ATP-binding type-1 domain profile. / DEAD-like helicases superfamily / Helicase, C-terminal / Helicase superfamily 1/2, ATP-binding domain / RNA-directed RNA polymerase, catalytic domain / RdRp of positive ssRNA viruses catalytic domain profile. / S-adenosyl-L-methionine-dependent methyltransferase superfamily / Peptidase S1, PA clan / DNA/RNA polymerase superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Biological speciesdengue virus type 4
Methodsingle particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsJiao HZ / Pan Q / Hu HL
Funding support1 items
OrganizationGrant numberCountry
Other governmentJCYJ20210324131802008
CitationJournal: Sci Adv / Year: 2024
Title: The step-by-step assembly mechanism of secreted flavivirus NS1 tetramer and hexamer captured at atomic resolution.
Authors: Qi Pan / Haizhan Jiao / Wanqin Zhang / Qiang Chen / Geshu Zhang / Jianhai Yu / Wei Zhao / Hongli Hu /
Abstract: Flaviviruses encode a conserved, membrane-associated nonstructural protein 1 (NS1) with replication and immune evasion functions. The current knowledge of secreted NS1 (sNS1) oligomers is based on ...Flaviviruses encode a conserved, membrane-associated nonstructural protein 1 (NS1) with replication and immune evasion functions. The current knowledge of secreted NS1 (sNS1) oligomers is based on several low-resolution structures, thus hindering the development of drugs and vaccines against flaviviruses. Here, we revealed that recombinant sNS1 from flaviviruses exists in a dynamic equilibrium of dimer-tetramer-hexamer states. Two DENV4 hexameric NS1 structures and several tetrameric NS1 structures from multiple flaviviruses were solved at atomic resolution by cryo-EM. The stacking of the tetrameric NS1 and hexameric NS1 is facilitated by the hydrophobic β-roll and connector domains. Additionally, a triacylglycerol molecule located within the central cavity may play a role in stabilizing the hexamer. Based on differentiated interactions between the dimeric NS1, two distinct hexamer models (head-to-head and side-to-side hexamer) and the step-by-step assembly mechanisms of NS1 dimer into hexamer were proposed. We believe that our study sheds light on the understanding of the NS1 oligomerization and contributes to NS1-based therapies.
History
DepositionSep 9, 2023-
Header (metadata) releaseMay 22, 2024-
Map releaseMay 22, 2024-
UpdateNov 13, 2024-
Current statusNov 13, 2024Processing site: PDBj / Status: Released

-
Structure visualization

Supplemental images

emd_37424.png

Downloads & links

-
Map

FileDownload / File: emd_37424.map.gz / Format: CCP4 / Size: 83.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.85 Å/pix.
x 280 pix.
= 238. Å		0.85 Å/pix.
x 280 pix.
= 238. Å		0.85 Å/pix.
x 280 pix.
= 238. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.85 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.4
Minimum - Maximum-2.593634 - 3.5427344
Average (Standard dev.)-0.0005995154 (±0.08589059)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions280280280
Spacing280280280
CellA=B=C: 238.0 Å
α=β=γ: 90.0 °

-
Supplemental data

-
Additional map: #1

Fileemd_37424_additional_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: #2

Fileemd_37424_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: #1

Fileemd_37424_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Sample components

-
Entire : ZIKA virus non-structural protein 1 tetramer

EntireName: ZIKA virus non-structural protein 1 tetramer
Components
  • Complex: ZIKA virus non-structural protein 1 tetramer
    • Protein or peptide: Genome polyprotein

-
Supramolecule #1: ZIKA virus non-structural protein 1 tetramer

SupramoleculeName: ZIKA virus non-structural protein 1 tetramer / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: dengue virus type 4

-
Macromolecule #1: Genome polyprotein

MacromoleculeName: Genome polyprotein / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO
Source (natural)Organism: dengue virus type 4
Molecular weightTheoretical: 44.49816 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: HHHHHHVGCS VDFSKKETRC GTGVFVYNDV EAWRDRYKYH PDSPRRLAAA VKQAWEDGIC GISSVSRMEN IMWRSVEGEL NAILEENGV QLTVVVGSVK NPMWRGPQRL PVPVNELPHG WKAWGKSYFV RAAKTNNSFV VDGDTLKECP LKHRAWNSFL V EDHGFGVF ...String:
HHHHHHVGCS VDFSKKETRC GTGVFVYNDV EAWRDRYKYH PDSPRRLAAA VKQAWEDGIC GISSVSRMEN IMWRSVEGEL NAILEENGV QLTVVVGSVK NPMWRGPQRL PVPVNELPHG WKAWGKSYFV RAAKTNNSFV VDGDTLKECP LKHRAWNSFL V EDHGFGVF HTSVWLKVRE DYSLECDPAV IGTAVKGKEA VHSDLGYWIE SEKNDTWRLK RAHLIEMKTC EWPKSHTLWT DG IEESDLI IPKSLAGPLS HHNTREGYRT QMKGPWHSEE LEIRFEECPG TKVHVEETCG TRGPSLRSTT ASGRVIEEWC CRE CTMPPL SFRAKDGCWY GMEIRPRKEP ESNLVRSMVT AGSLVPRGSW SHPQFEKGGG SGGGSGGSAW SHPQFEK

UniProtKB: Genome polyprotein

-
Experimental details

-
Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

-
Sample preparation

BufferpH: 7.5
VitrificationCryogen name: ETHANE / Chamber humidity: 100 %

-
Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 54.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 100.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.8 µm / Nominal defocus min: 1.2 µm / Nominal magnification: 105000
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

+
Image processing

Startup modelType of model: NONE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 127526
Initial angle assignmentType: RANDOM ASSIGNMENT
Final angle assignmentType: PROJECTION MATCHING
FSC plot (resolution estimation)

+
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