Insights into ErbB signaling from the structure of the ErbB2-pertuzumab complex.Franklin, M.C., Carey, K.D., Vajdos, F.F., Leahy, D.J., De Vos, A.M., Sliwkowski, M.X.
(2004) Cancer Cell 5: 317-328
- PubMed: 15093539
- PubMed Abstract:
- Targeting ligand-activated ErbB2 signaling inhibits breast and prostate tumor growth
Agus, D.B.,Akita, R.W.,Fox, W.D.,Lewis, G.D.,Higgins, B.,Pisacane, P.I.,Lofgren, J.A.,Tindell, C.,Evans, D.P.,Maiese, K.,Scher, H.I.,Sliwkowski, M.X.
(2002) Cancer Cell 2: 127
- Structure of the extracellular region of HER2 alone and in complex with the Herceptin Fab
Cho, H.S.,Mason, K.,Ramyar, K.X.,Stanley, A.M.,Gabelli, S.B.,Denney Jr., D.W.,Leahy, D.J.
(2003) Nature 421: 756
- Comprehensive functional maps of the antigen-binding site of an anti-ErbB2 antibody obtained with shotgun scanning mutagenesis
Vajdos, F.F.,Adams, C.W.,Breece, T.N.,Presta, L.G.,de Vos, A.M.,Sidhu, S.S.
(2002) J.Mol.Biol. 320: 415
We have determined the 3.2 A X-ray crystal structure of the extracellular domain of the human epidermal growth factor receptor 2 (ErbB2 or HER2) in a complex with the antigen binding fragment of pertuzumab, an anti-ErbB2 monoclonal antibody also know ...
We have determined the 3.2 A X-ray crystal structure of the extracellular domain of the human epidermal growth factor receptor 2 (ErbB2 or HER2) in a complex with the antigen binding fragment of pertuzumab, an anti-ErbB2 monoclonal antibody also known as 2C4 or Omnitarg. Pertuzumab binds to ErbB2 near the center of domain II, sterically blocking a binding pocket necessary for receptor dimerization and signaling. The ErbB2-pertuzumab structure, combined with earlier mutagenesis data, defines the pertuzumab residues essential for ErbB2 interaction. To analyze the ErbB2 side of the interface, we have mutated a number of residues contacting pertuzumab and examined the effects of these mutations on pertuzumab binding and ErbB2-ErbB3 heterodimerization. We have also shown that conserved residues previously shown to be necessary for EGF receptor homodimerization may be dispensible for ErbB2-ErbB3 heterodimerization.
Department of Protein Engineering, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94114 USA.