3EO0

Structure of the Transforming Growth Factor-Beta Neutralizing Antibody GC-1008


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.201 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.183 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

A cytokine-neutralizing antibody as a structural mimetic of 2 receptor interactions

Wilkinson, T.Turner, R.Podichetty, S.Finch, D.McCourt, M.Loning, S.Jermutus, L.

(2008) Proc Natl Acad Sci U S A 105: 20251-20256

  • DOI: https://doi.org/10.1073/pnas.0807200106
  • Primary Citation of Related Structures:  
    3EO0, 3EO1

  • PubMed Abstract: 

    TGF-beta isoforms are key modulators of a broad range of biological pathways and increasingly are exploited as therapeutic targets. Here, we describe the crystal structures of a pan-TGF-beta neutralizing antibody, GC-1008, alone and in complex with TGF-beta3. The antibody is currently in clinical evaluation for idiopathic pulmonary fibrosis, melanoma, and renal cell cancer. GC-1008 recognizes an asymmetric binding interface across the TGF-beta homodimer with high affinity. Whereas both cognate receptors, TGF-beta-receptor types I and II, are required to recognize all 3 TGF-beta isoforms, GC-1008 has been engineered to bind with high affinity to TGF-beta1, 2, and 3 via a single interaction surface. Comparison with existing structures and models of TGF-beta interaction with its receptors suggests that the antibody binds to a similar epitope to the 2 receptors together and is therefore a structurally different but functionally identical mimic of the binding mode of both receptors.


  • Organizational Affiliation

    Biochemisches Institut, Universität Zürich, Winterthurerstrasse 190, 8057 Zurich, Switzerland.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
GC-1008 Fab Light Chain
A, C
215Mus musculusMutation(s): 0 
Entity Groups  
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Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
GC-1008 Fab Heavy Chain
B, D
225Mus musculusMutation(s): 0 
UniProt
Find proteins for Q6PYX1 (Homo sapiens)
Explore Q6PYX1 
Go to UniProtKB:  Q6PYX1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ6PYX1
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.201 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.183 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 91.561α = 90
b = 83.009β = 103.38
c = 91.824γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2008-12-02
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 1.2: 2017-10-25
    Changes: Advisory, Refinement description
  • Version 1.3: 2023-11-01
    Changes: Advisory, Data collection, Database references, Derived calculations, Refinement description