3EO1

Structure of the Fab Fragment of GC-1008 in Complex with Transforming Growth Factor-Beta 3


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.255 

wwPDB Validation 3D Report Full Report


This is version 1.1 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.Usa 105: 20251-20256

  • DOI: 10.1073/pnas.0807200106
  • Primary Citation of Related Structures:  

  • 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 T ...

    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, Universit├Ąt Z├╝rich, Winterthurerstrasse 190, 8057 Zurich, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
GC-1008 Fab Light Chain
A, D, G, J
215N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
GC-1008 Fab Heavy Chain
B, E, H, K
225Homo sapiensMutation(s): 0 
Gene Names: IGHG4
Find proteins for P01861 (Homo sapiens)
Go to UniProtKB:  P01861
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Transforming growth factor beta-3
C, F, I, L
112Homo sapiensMutation(s): 0 
Gene Names: TGFB3
Find proteins for P10600 (Homo sapiens)
Go to Gene View: TGFB3
Go to UniProtKB:  P10600
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.255 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 149.040α = 90.00
b = 149.130β = 90.00
c = 149.660γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
XDSdata reduction
CNSrefinement
XSCALEdata scaling
XDSdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-12-02
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance