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- PDB-9bto: Influenza hemagglutinin B/Maryland/2016 glycoprotein -

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Open data


ID or keywords:

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Basic information

Entry
Database: PDB / ID: 9bto
TitleInfluenza hemagglutinin B/Maryland/2016 glycoprotein
Components
  • Hemagglutinin HA1
  • Hemagglutinin HA2
KeywordsVIRAL PROTEIN / hemagglutinin / influenza / complex
Function / homology
Function and homology information


host cell surface receptor binding / endocytosis involved in viral entry into host cell / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / host cell plasma membrane / virion membrane / membrane
Similarity search - Function
Haemagglutinin, influenzavirus B / Haemagglutinin, HA1 chain, alpha/beta domain superfamily / Haemagglutinin / Haemagglutinin, influenzavirus A/B / Viral capsid/haemagglutinin protein
Similarity search - Domain/homology
Biological speciesInfluenza B virus
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å
AuthorsTorrents de la Pena, A. / Sewall, L.M. / Ward, A.B.
Funding support United States, 2items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)AI136621C3 United States
Bill & Melinda Gates FoundationINV-002916 United States
CitationJournal: Nat Biomed Eng / Year: 2025
Title: Rapid and High-Throughput Imaging of Immune Complexes Using Microfluidics and Single Particle Electron Microscopy
Authors: Sewall, L.M. / Torrents de la Pena, A. / Ward, A.B.
History
DepositionMay 15, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 30, 2025Provider: repository / Type: Initial release
Revision 1.0Apr 30, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Apr 30, 2025Data content type: Additional map / Data content type: Additional map / Provider: repository / Type: Initial release
Revision 1.0Apr 30, 2025Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0Apr 30, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Apr 30, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Apr 30, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Apr 30, 2025Data content type: Mask / Data content type: Mask / Provider: repository / Type: Initial release
Revision 1.0Apr 30, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.1May 28, 2025Group: Data collection / Category: em_admin / em_software / Item: _em_admin.last_update
Revision 1.1May 28, 2025Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Data processing / Experimental summary / Data content type: EM metadata / EM metadata / Category: em_admin / em_software / Data content type: EM metadata / Item: _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Hemagglutinin HA1
B: Hemagglutinin HA2
C: Hemagglutinin HA1
D: Hemagglutinin HA2
E: Hemagglutinin HA1
F: Hemagglutinin HA2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)203,50327
Polymers194,3506
Non-polymers9,15321
Water00
1


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

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Components

#1: Protein Hemagglutinin HA1


Mass: 39957.883 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Influenza B virus / Strain: B/Maryland/2016 / Gene: HA / Production host: Homo sapiens (human) / References: UniProt: A0A2Z5DTY0
#2: Protein Hemagglutinin HA2


Mass: 24825.535 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Influenza B virus / Strain: B/Maryland/2016 / Gene: HA / Production host: Homo sapiens (human) / References: UniProt: A0A2Z5DTY0
#3: Polysaccharide
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 586.542 Da / Num. of mol.: 9
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/2,3,2/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5]/1-1-2/a4-b1_b4-c1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{}}}}LINUCSPDB-CARE
#4: Polysaccharide
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 424.401 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5_2*NCC/3=O]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}}LINUCSPDB-CARE
#5: Sugar
ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0
Has ligand of interestN
Has protein modificationY

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Experimental details

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Experiment

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

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Sample preparation

ComponentName: influenza hemagglutinin B/Maryland/2016 glycoprotein / Type: COMPLEX / Details: HA1 and HA2 are two subunits of the same protomer / Entity ID: #1 / Source: RECOMBINANT
Source (natural)Organism: Influenza B virus
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.4 / Details: TBS
SpecimenConc.: 0.02 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid type: EMS Lacey Carbon
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K
Details: wait time 30 sec, double blot for 4.5s, blot force 1

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Electron microscopy imaging

MicroscopyModel: TFS GLACIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 190000 X / Nominal defocus max: 1800 nm / Nominal defocus min: 800 nm / Cs: 2.7 mm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) / Num. of real images: 815

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Processing

EM software
IDNameCategory
2EPUimage acquisition
7Rosettamodel fitting
9Rosettamodel refinement
11cryoSPARCfinal Euler assignment
13cryoSPARC3D reconstruction
14PHENIXmodel refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 16096 / Symmetry type: POINT
Atomic model buildingProtocol: AB INITIO MODEL
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.02311739
ELECTRON MICROSCOPYf_angle_d1.72415915
ELECTRON MICROSCOPYf_dihedral_angle_d9.6754431
ELECTRON MICROSCOPYf_chiral_restr0.1271938
ELECTRON MICROSCOPYf_plane_restr0.0081992

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