1MFG

The Structure of ERBIN PDZ domain bound to the Carboxy-terminal tail of the ErbB2 Receptor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.25 Å
  • R-Value Free: 0.165 
  • R-Value Work: 0.128 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Novel mode of ligand recognition by the erbin PDZ domain

Birrane, G.Chung, J.Ladias, J.A.

(2003) J.Biol.Chem. 278: 1399-1402

  • DOI: 10.1074/jbc.C200571200
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Erbin contains a class I PDZ domain that binds to the C-terminal region of the receptor tyrosine kinase ErbB2, a class II ligand. The crystal structure of the human Erbin PDZ bound to the peptide EYLGLDVPV corresponding to the C-terminal residues 124 ...

    Erbin contains a class I PDZ domain that binds to the C-terminal region of the receptor tyrosine kinase ErbB2, a class II ligand. The crystal structure of the human Erbin PDZ bound to the peptide EYLGLDVPV corresponding to the C-terminal residues 1247-1255 of human ErbB2 has been determined at 1.25-A resolution. The Erbin PDZ deviates from the canonical PDZ fold in that it contains a single alpha-helix. The isopropyl group of valine at position -2 of the ErbB2 peptide interacts with the Erbin Val(1351) and displaces the peptide backbone away from the alpha-helix, elucidating the molecular basis of class II ligand recognition by a class I PDZ domain. Strikingly, the phenolic ring of tyrosine -7 enters into a pocket formed by the extended beta 2-beta 3 loop of the Erbin PDZ. Phosphorylation of tyrosine -7 abolishes this interaction but does not affect the binding of the four C-terminal peptidic residues to PDZ, as revealed by the crystal structure of the Erbin PDZ complexed with a phosphotyrosine-containing ErbB2 peptide. Since phosphorylation of tyrosine -7 plays a critical role in ErbB2 function, the selective binding and sequestration of this residue in its unphosphorylated state by the Erbin PDZ provides a novel mechanism for regulation of the ErbB2-mediated signaling and oncogenicity.


    Related Citations: 
    • THE ERBB2/HER2 RECEPTOR DIFFERENTIALLY INTERACTS WITH ERBIN AND PICK1 PSD-95/DLG/ZO-1 DOMAIN PROTEINS
      JAULIN-BASTARD, F.,SAITO, H.,LEBIVIC, A.,OLLENDORFF, V.,MARCHETTO, S.,BIRNBAUM, D.,BORG, J.P.
      (2001) J.Biol.Chem. 276: 15256
    • BIN: A BASOLATERAL PDZ PROTEIN THAT INTERACTS WITH THE MAMMALIAN ERBB2/HER2 RECEPTOR
      BORG, J.P.,MARCHETTO, S.,LEBIVIC, A.,OLLENDORFF, V.,JAULIN-BASTARD, F.,SAITO, H.,FOURNIER, E.,ADELAIDE, J.,MARGOLIS, B.,BIRNBAUM, D.
      (2000) NAT.CELL BIOL. 2: 407
    • ERBIN IS A PROTEIN CONCENTRATED AT POSTSYNAPTIC MEMBRANES THAT INTERACTS WITH PSD-95
      HUANG, Y.Z.,WANG, Q.,XIONG, W.C.,MEI, L.
      (2001) J.Biol.Chem. 276: 19318
    • THE ERBIN PDZ DOMAIN BINDS WITH HIGH AFFINITY AND SPECIFICITY TO THE CARBOXYL TERMINI OF DELTA-CATENIN AND ARVCF
      LAURA, R.P.,WITT, A.S.,HELD, H.A.,GERSTNER, R.,DESHAYES, K.,KOEHLER, M.F.,KOSIK, K.S.,SIDHU, S.S.,LASKY, L.A.
      (2002) J.Biol.Chem. 277: 12906


    Organizational Affiliation

    Molecular Medicine Laboratory and Macromolecular Crystallography Unit, Division of Experimental Medicine, Harvard Institutes of Medicine, Harvard Medical School, Boston, Massachusetts 02115, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Erb-B2 INTERACTING PROTEIN
A
95Homo sapiensMutation(s): 0 
Gene Names: ERBIN (ERBB2IP, KIAA1225, LAP2)
Find proteins for Q96RT1 (Homo sapiens)
Go to Gene View: ERBIN
Go to UniProtKB:  Q96RT1
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Erb-B2 carboxyl-terminal fragment
B
9Homo sapiensMutation(s): 0 
Gene Names: ERBB2 (HER2, MLN19, NEU, NGL)
EC: 2.7.10.1
Find proteins for P04626 (Homo sapiens)
Go to Gene View: ERBB2
Go to UniProtKB:  P04626
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.25 Å
  • R-Value Free: 0.165 
  • R-Value Work: 0.128 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 26.605α = 90.00
b = 57.417β = 100.59
c = 30.439γ = 90.00
Software Package:
Software NamePurpose
SHELXL-97refinement
DENZOdata reduction
SCALEPACKdata scaling
SOLVEphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-01-21
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance