4XXD

Crystal Structure of mid-region amyloid beta capture by solanezumab


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.41 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.249 
  • R-Value Observed: 0.251 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Molecular basis for mid-region amyloid-beta capture by leading Alzheimer's disease immunotherapies.

Crespi, G.A.Hermans, S.J.Parker, M.W.Miles, L.A.

(2015) Sci Rep 5: 9649-9649

  • DOI: 10.1038/srep09649
  • Primary Citation of Related Structures:  
    4XXD

  • PubMed Abstract: 
  • Solanezumab (Eli Lilly) and crenezumab (Genentech) are the leading clinical antibodies targeting Amyloid-β (Aβ) to be tested in multiple Phase III clinical trials for the prevention of Alzheimer's disease in at-risk individuals. Aβ capture by these clinical antibodies is explained here with the first reported mid-region Aβ-anti-Aβ complex crystal structure ...

    Solanezumab (Eli Lilly) and crenezumab (Genentech) are the leading clinical antibodies targeting Amyloid-β (Aβ) to be tested in multiple Phase III clinical trials for the prevention of Alzheimer's disease in at-risk individuals. Aβ capture by these clinical antibodies is explained here with the first reported mid-region Aβ-anti-Aβ complex crystal structure. Solanezumab accommodates a large Aβ epitope (960 Å(2) buried interface over residues 16 to 26) that forms extensive contacts and hydrogen bonds to the antibody, largely via main-chain Aβ atoms and a deeply buried Phe19-Phe20 dipeptide core. The conformation of Aβ captured is an intermediate between observed sheet and helical forms with intramolecular hydrogen bonds stabilising residues 20-26 in a helical conformation. Remarkably, Aβ-binding residues are almost perfectly conserved in crenezumab. The structure explains the observed shared cross reactivity of solanezumab and crenezumab with proteins abundant in plasma that exhibit this Phe-Phe dipeptide.


    Organizational Affiliation

    1] ACRF Rational Drug Discovery Centre, St. Vincent's Institute of Medical Research, Fitzroy, Victoria 3065, Australia [2] Department of Biochemistry and Molecular Biology, Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria, Australia.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Fab Light ChainA, D219Homo sapiensMutation(s): 0 
Gene Names: IGKC
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Find proteins for P01834 (Homo sapiens)
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Go to UniProtKB:  P01834
PHAROS:  P01834
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UniProt GroupP01834
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Fab Heavy ChainB, E223Homo sapiensMutation(s): 0 
Gene Names: IGHG1
UniProt & NIH Common Fund Data Resources
Find proteins for P01857 (Homo sapiens)
Explore P01857 
Go to UniProtKB:  P01857
PHAROS:  P01857
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UniProt GroupP01857
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Amyloid-beta fragmentC, F17Homo sapiensMutation(s): 0 
Gene Names: APPA4AD1
UniProt & NIH Common Fund Data Resources
Find proteins for P05067 (Homo sapiens)
Explore P05067 
Go to UniProtKB:  P05067
PHAROS:  P05067
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UniProt GroupP05067
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.41 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.249 
  • R-Value Observed: 0.251 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 38.796α = 109.91
b = 73.555β = 93.64
c = 92.118γ = 93.31
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing
MOLREPphasing
Cootmodel building

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Health and Medical Council Project GrantAustraliaAPP1021935

Revision History  (Full details and data files)

  • Version 1.0: 2015-04-29
    Type: Initial release
  • Version 1.1: 2015-07-29
    Changes: Database references, Structure summary
  • Version 1.2: 2017-08-23
    Changes: Data collection, Derived calculations, Source and taxonomy