5WKO

Crystal structure of antibody 27F3 recognizing the HA from A/California/04/2009 (H1N1) influenza virus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.492 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.246 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Antibody 27F3 Broadly Targets Influenza A Group 1 and 2 Hemagglutinins through a Further Variation in VH1-69 Antibody Orientation on the HA Stem.

Lang, S.Xie, J.Zhu, X.Wu, N.C.Lerner, R.A.Wilson, I.A.

(2017) Cell Rep 20: 2935-2943

  • DOI: 10.1016/j.celrep.2017.08.084

  • PubMed Abstract: 
  • Antibodies that target both group 1 and group 2 influenza A viruses are valuable for therapeutic and vaccine development, but only a few have been reported to date. Here, we describe a new VH1-69 antibody 27F3 that broadly recognizes heterosubtypic h ...

    Antibodies that target both group 1 and group 2 influenza A viruses are valuable for therapeutic and vaccine development, but only a few have been reported to date. Here, we describe a new VH1-69 antibody 27F3 that broadly recognizes heterosubtypic hemagglutinins (HAs) from both group 1 and group 2 influenza A viruses. Structural characterization of 27F3 Fab with A/California/04/2009 (H1N1) hemagglutinin illustrates that 27F3 shares the key binding features observed in other VH1-69 antibodies to the HA stem. Compared to other VH1-69 antibodies, the 27F3 VH domain interacts with the HA stem in a distinct orientation, which alters its epitope and may have influenced its breadth. The diverse rotations of VH1-69 antibodies on the HA stem epitope highlight the different ways that this antibody family can evolve to broadly neutralize influenza A viruses. These results have important implications for understanding how to elicit broad antibody responses against influenza virus.


    Organizational Affiliation

    Department of Integrative Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA; The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Antibody 27F3 heavy chain
A, C, E, G, I, K
225N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Antibody 27F3 light chain
B, D, F, H, J, L
213N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin
M, N, O, S, T, U
331Influenza A virus (strain swl A/California/04/2009 H1N1)Mutation(s): 0 
Gene Names: HA
Find proteins for C3W5S1 (Influenza A virus (strain swl A/California/04/2009 H1N1))
Go to UniProtKB:  C3W5S1
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin
P, Q, R, V, W, X
177Influenza A virus (strain swl A/California/04/2009 H1N1)Mutation(s): 1 
Gene Names: HA
Find proteins for C5MVT7 (Influenza A virus (strain swl A/California/04/2009 H1N1))
Go to UniProtKB:  C5MVT7
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.492 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.246 
  • Space Group: P 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 190.580α = 90.00
b = 191.486β = 90.00
c = 391.050γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
PHASERphasing
HKL-2000data reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious DiseasesUnited StatesR56 AI117675

Revision History 

  • Version 1.0: 2017-10-25
    Type: Initial release
  • Version 1.1: 2017-12-06
    Type: Author supporting evidence