5CSZ

CRYSTAL STRUCTURE OF GANTENERUMAB FAB FRAGMENT IN COMPLEX WITH ABETA 1-11


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.198 

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Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

Gantenerumab: a novel human anti-Abeta antibody demonstrates sustained cerebral amyloid-Beta binding and elicits cell-mediated removal of human amyloid-Beta.

Bohrmann, B.Baumann, K.Benz, J.Gerber, F.Huber, W.Knoflach, F.Messer, J.Oroszlan, K.Rauchenberger, R.Richter, W.F.Rothe, C.Urban, M.Bardroff, M.Winter, M.Nordstedt, C.Loetscher, H.

(2012) J Alzheimers Dis 28: 49-69

  • DOI: https://doi.org/10.3233/JAD-2011-110977
  • Primary Citation of Related Structures:  
    5CSZ

  • PubMed Abstract: 

    The amyloid-β lowering capacity of anti-Aβ antibodies has been demonstrated in transgenic models of Alzheimer's disease (AD) and in AD patients. While the mechanism of immunotherapeutic amyloid-β removal is controversial, antibody-mediated sequestration of peripheral Aβ versus microglial phagocytic activity and disassembly of cerebral amyloid (or a combination thereof) has been proposed. For successful Aβ immunotherapy, we hypothesized that high affinity antibody binding to amyloid-β plaques and recruitment of brain effector cells is required for most efficient amyloid clearance. Here we report the generation of a novel fully human anti-Aβ antibody, gantenerumab, optimized in vitro for binding with sub-nanomolar affinity to a conformational epitope expressed on amyloid-β fibrils using HuCAL(®) phage display technologies. In peptide maps, both N-terminal and central portions of Aβ were recognized by gantenerumab. Remarkably, a novel orientation of N-terminal Aβ bound to the complementarity determining regions was identified by x-ray analysis of a gantenerumab Fab-Aβ(1-11) complex. In functional assays gantenerumab induced cellular phagocytosis of human amyloid-β deposits in AD brain slices when co-cultured with primary human macrophages and neutralized oligomeric Aβ42-mediated inhibitory effects on long-term potentiation in rat brain. In APP751(swedish)xPS2(N141I) transgenic mice, gantenerumab showed sustained binding to cerebral amyloid-β and, upon chronic treatment, significantly reduced small amyloid-β plaques by recruiting microglia and prevented new plaque formation. Unlike other Aβ antibodies, gantenerumab did not alter plasma Aβ suggesting undisturbed systemic clearance of soluble Aβ. These studies demonstrated that gantenerumab preferentially interacts with aggregated Aβ in the brain and lowers amyloid-β by eliciting effector cell-mediated clearance.


  • Organizational Affiliation

    F. Hoffmann-La Roche Ltd., pRED, Basel, Switzerland. bernd.bohrmann@roche.com


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
GANTENERUMAB FAB FRAGMENT HEAVY CHAINA [auth H],
C [auth A]
228Homo sapiensMutation(s): 0 
Entity Groups  
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Glycosylation
Glycosylation Sites: 1
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
GANTENERUMAB FAB FRAGMENT LIGHT CHAINB [auth L],
D [auth B]
215Homo sapiensMutation(s): 0 
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  • Reference Sequence

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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Amyloid beta A4 proteinE [auth D],
F [auth E]
11Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P05067 (Homo sapiens)
Explore P05067 
Go to UniProtKB:  P05067
PHAROS:  P05067
GTEx:  ENSG00000142192 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP05067
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.198 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 71.137α = 90
b = 66.242β = 99.09
c = 105.156γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-08-12
    Type: Initial release
  • Version 1.1: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Structure summary