1FJ1

LYME DISEASE ANTIGEN OSPA IN COMPLEX WITH NEUTRALIZING ANTIBODY FAB LA-2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.68 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.226 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structural identification of a key protective B-cell epitope in Lyme disease antigen OspA.

Ding, W.Huang, X.Yang, X.Dunn, J.J.Luft, B.J.Koide, S.Lawson, C.L.

(2000) J Mol Biol 302: 1153-1164

  • DOI: 10.1006/jmbi.2000.4119
  • Primary Citation of Related Structures:  
    1FJ1

  • PubMed Abstract: 
  • Outer surface protein A (OspA) is a major lipoprotein of the Borrelia burgdorferi spirochete, the causative agent of Lyme disease. Vaccination with OspA generates an immune response that can prevent bacterial transmission to a mammalian host during the attachment of an infected tick ...

    Outer surface protein A (OspA) is a major lipoprotein of the Borrelia burgdorferi spirochete, the causative agent of Lyme disease. Vaccination with OspA generates an immune response that can prevent bacterial transmission to a mammalian host during the attachment of an infected tick. However, the protective capacity of immune sera cannot be predicted by measuring total anti-OspA antibody. The murine monoclonal antibody LA-2 defines an important protective B-cell epitope of OspA against which protective sera have strong levels of reactivity. We have now mapped the LA-2 epitope of OspA using both NMR chemical-shift perturbation measurements in solution and X-ray crystal structure determination. LA-2 recognizes the three surface-exposed loops of the C-terminal domain of OspA that are on the tip of the elongated molecule most distant from the lipid-modified N terminus. The structure suggests that the natural variation at OspA sequence position 208 in the first loop is a major limiting factor for antibody cross-reactivity between different Lyme disease-causing Borrelia strains. The unusual Fab-dominated lattice of the crystal also permits a rare view of antigen flexibility within an antigen:antibody complex. These results provide a rationale for improvements in OspA-based vaccines and suggest possible designs for more direct tests of antibody protective levels in vaccinated individuals.


    Organizational Affiliation

    Biology Department, Brookhaven National Laboratory, Upton, NY 11973, USA.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HYBRIDOMA ANTIBODY LA2 (LIGHT CHAIN)A, C213Mus musculusMutation(s): 0 
Gene Names: Igkc
UniProt
Find proteins for P01837 (Mus musculus)
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Go to UniProtKB:  P01837
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
HYBRIDOMA ANTIBODY LA2 (HEAVY CHAIN)B, D213Mus musculusMutation(s): 0 
Gene Names: Igh-3
UniProt
Find proteins for P01867 (Mus musculus)
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Go to UniProtKB:  P01867
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
OUTER SURFACE PROTEIN AE, F257Borreliella burgdorferi B31Mutation(s): 4 
Gene Names: ospABB_A15
UniProt
Find proteins for P0CL66 (Borrelia burgdorferi (strain ATCC 35210 / B31 / CIP 102532 / DSM 4680))
Explore P0CL66 
Go to UniProtKB:  P0CL66
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.68 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.226 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 100.079α = 90
b = 129.462β = 90
c = 143.738γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
CNSrefinement

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 2000-08-07 
  • Released Date: 2000-10-11 
  • Deposition Author(s): Ding, W., Lawson, C.L.
  • This entry supersedes: 2OSP

Revision History  (Full details and data files)

  • Version 1.0: 2000-10-11
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Source and taxonomy, Version format compliance
  • Version 1.3: 2018-01-31
    Changes: Experimental preparation