3E17

Crystal structure of the second PDZ domain from human Zona Occludens-2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.206 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the second PDZ domain from human zonula occludens 2

Chen, H.Tong, S.Li, X.Wu, J.Zhu, Z.Niu, L.Teng, M.

(2009) Acta Crystallogr.,Sect.F 65: 327-330

  • DOI: 10.1107/S1744309109002334

  • PubMed Abstract: 
  • Human zonula occludens 2 (ZO-2) protein is a multi-domain protein that consists of an SH3 domain, a GK domain and three copies of a PDZ domain with slight divergence. The three PDZ domains act as protein-recognition modules that may mediate protein a ...

    Human zonula occludens 2 (ZO-2) protein is a multi-domain protein that consists of an SH3 domain, a GK domain and three copies of a PDZ domain with slight divergence. The three PDZ domains act as protein-recognition modules that may mediate protein assembly and subunit localization. The crystal structure of the second PDZ domain of ZO-2 (ZO-2 PDZ2) was determined by molecular replacement at 1.75 A resolution, revealing a dimer in the asymmetric unit. The dimer is stabilized by extensive symmetrical domain-swapping of the beta1 and beta2 strands. Structural comparison shows that the ZO-2 PDZ2 homodimer may have a similar ligand-binding pattern to the ZO-1 PDZ2-connexin 43 complex.


    Organizational Affiliation

    Hefei National Laboratory for Physical Sciences at Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, People's Republic of China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tight junction protein ZO-2
A, B
88Homo sapiensMutation(s): 0 
Gene Names: TJP2 (X104, ZO2)
Find proteins for Q9UDY2 (Homo sapiens)
Go to Gene View: TJP2
Go to UniProtKB:  Q9UDY2
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.206 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 30.177α = 80.05
b = 41.325β = 68.63
c = 41.292γ = 68.52
Software Package:
Software NamePurpose
SCALEPACKdata scaling
PDB_EXTRACTdata extraction
MAR345dtbdata collection
AUTOMARdata reduction
MOLREPphasing
DENZOdata reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-07-21
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-10-25
    Type: Refinement description