[English] 日本語
Yorodumi
- EMDB-26318: Influenza Neuraminidase N1-CA09-sNAp-155 -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: EMDB / ID: EMD-26318
TitleInfluenza Neuraminidase N1-CA09-sNAp-155
Map data
Sample
  • Complex: Structure-based design of an engineered Influenza Neuraminidase tetramer
    • Protein or peptide: Influenza N1-CA09-sNAp-155
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
Biological speciesInfluenza A virus
Methodsingle particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsActon OJ / Veesler D / Seattle Structural Genomics Center for Infectious Disease (SSGCID)
Funding support United States, 1 items
OrganizationGrant numberCountry
Howard Hughes Medical Institute (HHMI) United States
CitationJournal: Nat Commun / Year: 2022
Title: Structure-based design of stabilized recombinant influenza neuraminidase tetramers.
Authors: Daniel Ellis / Julia Lederhofer / Oliver J Acton / Yaroslav Tsybovsky / Sally Kephart / Christina Yap / Rebecca A Gillespie / Adrian Creanga / Audrey Olshefsky / Tyler Stephens / Deleah ...Authors: Daniel Ellis / Julia Lederhofer / Oliver J Acton / Yaroslav Tsybovsky / Sally Kephart / Christina Yap / Rebecca A Gillespie / Adrian Creanga / Audrey Olshefsky / Tyler Stephens / Deleah Pettie / Michael Murphy / Claire Sydeman / Maggie Ahlrichs / Sidney Chan / Andrew J Borst / Young-Jun Park / Kelly K Lee / Barney S Graham / David Veesler / Neil P King / Masaru Kanekiyo /
Abstract: Influenza virus neuraminidase (NA) is a major antiviral drug target and has recently reemerged as a key target of antibody-mediated protective immunity. Here we show that recombinant NAs across non- ...Influenza virus neuraminidase (NA) is a major antiviral drug target and has recently reemerged as a key target of antibody-mediated protective immunity. Here we show that recombinant NAs across non-bat subtypes adopt various tetrameric conformations, including an "open" state that may help explain poorly understood variations in NA stability across viral strains and subtypes. We use homology-directed protein design to uncover the structural principles underlying these distinct tetrameric conformations and stabilize multiple recombinant NAs in the "closed" state, yielding two near-atomic resolution structures of NA by cryo-EM. In addition to enhancing thermal stability, conformational stabilization improves affinity to protective antibodies elicited by viral infection, including antibodies targeting a quaternary epitope and the broadly conserved catalytic site. Stabilized NAs can also be integrated into viruses without affecting fitness. Our findings provide a deeper understanding of NA structure, stability, and antigenicity, and establish design strategies for reinforcing the conformational integrity of recombinant NA proteins.
History
DepositionFeb 24, 2022-
Header (metadata) releaseApr 20, 2022-
Map releaseApr 20, 2022-
UpdateApr 20, 2022-
Current statusApr 20, 2022Processing site: RCSB / Status: Released

-
Structure visualization

Supplemental images

emd_26318.png

Downloads & links

-
Map

FileDownload / File: emd_26318.map.gz / Format: CCP4 / Size: 32.4 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.16 Å
Density
Contour LevelBy AUTHOR: 0.7
Minimum - Maximum-3.36853 - 5.4514585
Average (Standard dev.)0.0076247514 (±0.14285415)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions204204204
Spacing204204204
CellA=B=C: 236.64 Å
α=β=γ: 90.0 °

-
Supplemental data

-
Additional map: #1

Fileemd_26318_additional_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Sample components

-
Entire : Structure-based design of an engineered Influenza Neuraminidase t...

EntireName: Structure-based design of an engineered Influenza Neuraminidase tetramer
Components
  • Complex: Structure-based design of an engineered Influenza Neuraminidase tetramer
    • Protein or peptide: Influenza N1-CA09-sNAp-155
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose

-
Supramolecule #1: Structure-based design of an engineered Influenza Neuraminidase t...

SupramoleculeName: Structure-based design of an engineered Influenza Neuraminidase tetramer
type: complex / Chimera: Yes / ID: 1 / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Influenza A virus
Recombinant expressionOrganism: Homo sapiens (human)
Molecular weightTheoretical: 210 kDa/nm

-
Macromolecule #1: Influenza N1-CA09-sNAp-155

MacromoleculeName: Influenza N1-CA09-sNAp-155 / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO
Source (natural)Organism: Influenza A virus
Molecular weightTheoretical: 42.499523 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: VKLAGNSSLC PVSGWAPLSK DNSVRIGSKG DVFVIREPFI SCSPLECRTF FLTQGALLND KHSNGTIKDR SPYRTLMSVP IGSVPSPYN ARFESIAWSA SACHDGINWL TIGITGPDNG AVAILKYNGI ITDTIKSWRN NILRTQESEC ACVNGSCFTV M TDGPSNGQ ...String:
VKLAGNSSLC PVSGWAPLSK DNSVRIGSKG DVFVIREPFI SCSPLECRTF FLTQGALLND KHSNGTIKDR SPYRTLMSVP IGSVPSPYN ARFESIAWSA SACHDGINWL TIGITGPDNG AVAILKYNGI ITDTIKSWRN NILRTQESEC ACVNGSCFTV M TDGPSNGQ ASYKIFRIEK GKIVKSVEMN APNYHYEECS CYPDSSEITC VCRDNWHGSN RPWVSFNQNL EYQIGYICSG IF GDNPRPN DKTGSCGPVS SNGANGVKGF SFKYGNGVWI GRTKSISSRN GFEMIWDPNG WTGTDNNFSI KQDIVGINEW SGY SGSFVM HPELTGLDCI VPCFWVELIR GRPKENTIWT SGSSISFCGV NSDTVGWSWP DGAELPFTID K

-
Macromolecule #2: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 2 / Number of copies: 8 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose / N-Acetylglucosamine

-
Experimental details

-
Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

-
Sample preparation

BufferpH: 8
GridModel: UltrAuFoil R1.2/1.3
VitrificationCryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 295 K / Instrument: FEI VITROBOT MARK IV

-
Electron microscopy

MicroscopeTFS GLACIOS
Electron beamAcceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 70.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Cs: 2.7 mm / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.8 µm / Nominal magnification: 36000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Average electron dose: 60.0 e/Å2

-
Image processing

Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionApplied symmetry - Point group: C4 (4 fold cyclic) / Resolution.type: BY AUTHOR / Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 67444

+
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