3BAE

Crystal structure of Fab WO2 bound to the N terminal domain of Amyloid beta peptide (1-28)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.59 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.209 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Amyloid-beta-anti-amyloid-beta complex structure reveals an extended conformation in the immunodominant B-cell epitope.

Miles, L.A.Wun, K.S.Crespi, G.A.Fodero-Tavoletti, M.T.Galatis, D.Bagley, C.J.Beyreuther, K.Masters, C.L.Cappai, R.McKinstry, W.J.Barnham, K.J.Parker, M.W.

(2008) J Mol Biol 377: 181-192

  • DOI: 10.1016/j.jmb.2007.12.036
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Alzheimer's disease (AD) is the most common form of dementia. Amyloid-beta (A beta) peptide, generated by proteolytic cleavage of the amyloid precursor protein, is central to AD pathogenesis. Most pharmaceutical activity in AD research has focused on ...

    Alzheimer's disease (AD) is the most common form of dementia. Amyloid-beta (A beta) peptide, generated by proteolytic cleavage of the amyloid precursor protein, is central to AD pathogenesis. Most pharmaceutical activity in AD research has focused on A beta, its generation and clearance from the brain. In particular, there is much interest in immunotherapy approaches with a number of anti-A beta antibodies in clinical trials. We have developed a monoclonal antibody, called WO2, which recognises the A beta peptide. To this end, we have determined the three-dimensional structure, to near atomic resolution, of both the antibody and the complex with its antigen, the A beta peptide. The structures reveal the molecular basis for WO2 recognition and binding of A beta. The A beta peptide adopts an extended, coil-like conformation across its major immunodominant B-cell epitope between residues 2 and 8. We have also studied the antibody-bound A beta peptide in the presence of metals known to affect its aggregation state and show that WO2 inhibits these interactions. Thus, antibodies that target the N-terminal region of A beta, such as WO2, hold promise for therapeutic development.


    Organizational Affiliation

    Biota Structural Biology Laboratory, St. Vincent's Institute of Medical Research, 9 Princes Street, Fitzroy, Victoria 3065, Australia.



Macromolecules

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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
WO2 IgG2a Fab fragment Light Chain KappaL218Mus musculusMutation(s): 0 
Gene Names: IgkcIgk-C
Find proteins for A2NHM3 (Mus musculus)
Explore A2NHM3 
Go to UniProtKB:  A2NHM3
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
WO2 IgG2a Fab fragment Heavy ChainH228Mus musculusMutation(s): 0 
Find proteins for Q811U5 (Mus musculus)
Explore Q811U5 
Go to UniProtKB:  Q811U5
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  • Reference Sequence

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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Amyloid Beta PeptideA28N/AMutation(s): 0 
Find proteins for P05067 (Homo sapiens)
Explore P05067 
Go to UniProtKB:  P05067
NIH Common Fund Data Resources
PHAROS  P05067
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.59 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.209 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 51.658α = 90
b = 66.365β = 90
c = 115.337γ = 90
Software Package:
Software NamePurpose
d*TREKdata scaling
MOLREPphasing
REFMACrefinement
PDB_EXTRACTdata extraction
CrystalCleardata collection
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-04-15
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance