6WIY

Crystal structure of Fab 54-1G05

  • Classification: IMMUNE SYSTEM
  • Organism(s): Homo sapiens
  • Expression System: Cricetulus griseus
  • Mutation(s): No 

  • Deposited: 2020-04-11 Released: 2020-07-01 
  • Deposition Author(s): Wu, N.C., Wilson, I.A.
  • Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.158 
  • R-Value Observed: 0.159 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Convergent Evolution in Breadth of Two VH6-1-Encoded Influenza Antibody Clonotypes from a Single Donor.

Wu, N.C.Andrews, S.F.Raab, J.E.O'Connell, S.Schramm, C.A.Ding, X.Chambers, M.J.Leung, K.Wang, L.Zhang, Y.Mascola, J.R.Douek, D.C.Ledgerwood, J.E.McDermott, A.B.Wilson, I.A.

(2020) Cell Host Microbe 

  • DOI: 10.1016/j.chom.2020.06.003
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Understanding how broadly neutralizing antibodies (bnAbs) to influenza hemagglutinin (HA) naturally develop in humans is critical to the design of universal influenza vaccines. Several classes of bnAbs directed to the conserved HA stem were found in ...

    Understanding how broadly neutralizing antibodies (bnAbs) to influenza hemagglutinin (HA) naturally develop in humans is critical to the design of universal influenza vaccines. Several classes of bnAbs directed to the conserved HA stem were found in multiple individuals, including one encoded by heavy-chain variable domain V H 6-1. We describe two genetically similar V H 6-1 bnAb clonotypes from the same individual that exhibit different developmental paths toward broad neutralization activity. One clonotype evolved from a germline precursor recognizing influenza group 1 subtypes to gain breadth to group 2 subtypes. The other clonotype recognized group 2 subtypes and developed binding to group 1 subtypes through somatic hypermutation. Crystal structures reveal that the specificity differences are primarily mediated by complementarity-determining region H3 (CDR H3). Thus, while V H 6-1 provides a framework for development of HA stem-directed bnAbs, sequence differences in CDR H3 junctional regions during VDJ recombination can alter reactivity and evolutionary pathways toward increased breadth.


    Organizational Affiliation

    Department of Integrative Structural and Computational Biology, The Scripps Research Institute, San Diego, CA 92037, USA; The Skaggs Institute for Chemical Biology, The Scripps Research Institute, San Diego, CA 92037, USA. Electronic address: wilson@scripps.edu.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Fab 54-1G05 heavy chainH233Homo sapiensMutation(s): 0 
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Fab 54-1G05 light chainL218Homo sapiensMutation(s): 0 
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download CCD File 
H, L
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.158 
  • R-Value Observed: 0.159 
  • Space Group: P 2 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 60.909α = 90
b = 79.092β = 90
c = 107.645γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data scaling
PDB_EXTRACTdata extraction
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2020-04-11 
  • Released Date: 2020-07-01 
  • Deposition Author(s): Wu, N.C., Wilson, I.A.

Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesR56 AI127371
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesK99 AI139445

Revision History 

  • Version 1.0: 2020-07-01
    Type: Initial release
  • Version 1.1: 2020-07-15
    Changes: Database references