3P0V

anti-EGFR/HER3 Fab DL11 alone


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.85 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.230 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

A two-in-one antibody against HER3 and EGFR has superior inhibitory activity compared with monospecific antibodies.

Schaefer, G.Haber, L.Crocker, L.M.Shia, S.Shao, L.Dowbenko, D.Totpal, K.Wong, A.Lee, C.V.Stawicki, S.Clark, R.Fields, C.Lewis Phillips, G.D.Prell, R.A.Danilenko, D.M.Franke, Y.Stephan, J.P.Hwang, J.Wu, Y.Bostrom, J.Sliwkowski, M.X.Fuh, G.Eigenbrot, C.

(2011) Cancer Cell 20: 472-486

  • DOI: 10.1016/j.ccr.2011.09.003
  • Primary Citation of Related Structures:  
    3P11, 3P0V, 3P0Y

  • PubMed Abstract: 
  • Extensive crosstalk among ErbB/HER receptors suggests that blocking signaling from more than one family member may be essential to effectively treat cancer and limit drug resistance. We generated a conventional IgG molecule MEHD7945A with dual HER3/E ...

    Extensive crosstalk among ErbB/HER receptors suggests that blocking signaling from more than one family member may be essential to effectively treat cancer and limit drug resistance. We generated a conventional IgG molecule MEHD7945A with dual HER3/EGFR specificity by phage display engineering and used structural and mutational studies to understand how a single antigen recognition surface binds two epitopes with high affinity. As a human IgG1, MEHD7945A exhibited dual action by inhibiting EGFR- and HER3-mediated signaling in vitro and in vivo and the ability to engage immune effector functions. Compared with monospecific anti-HER antibodies, MEHD7945A was more broadly efficacious in multiple tumor models, showing that combined inhibition of EGFR and HER3 with a single antibody is beneficial.


    Organizational Affiliation

    Department of Research Oncology, Genentech, Inc, South San Francisco, CA 94080, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Fab DL11 light chainLM214Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Fab DL11 heavy chainHI228Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download CCD File 
H, I
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.85 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.230 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 71.375α = 90
b = 77.168β = 99.53
c = 82.664γ = 90
Software Package:
Software NamePurpose
BOSdata collection
PHASERphasing
REFMACrefinement
HKL-2000data reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-10-19
    Type: Initial release
  • Version 1.1: 2012-03-21
    Changes: Database references