ZO1 ZU5 domain MC/AA mutation

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 

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Cdc42-dependent formation of the ZO-1/MRCKb complex at the leading edge controls cell migration

Huo, L.Wen, W.Wang, R.Kam, C.Xia, J.Feng, W.Zhang, M.

(2011) EMBO J 30: 665-678

  • DOI: https://doi.org/10.1038/emboj.2010.353
  • Primary Citation of Related Structures:  
    2KXR, 2KXS

  • PubMed Abstract: 

    Zonula occludens (ZO)-1 is a multi-domain scaffold protein known to have critical roles in the establishment of cell-cell adhesions and the maintenance of stable tissue structures through the targeting, anchoring, and clustering of transmembrane adhesion molecules and cytoskeletal proteins. Here, we report that ZO-1 directly binds to MRCKβ, a Cdc42 effector kinase that modulates cell protrusion and migration, at the leading edge of migrating cells. Structural studies reveal that the binding of a β hairpin from GRINL1A converts ZO-1 ZU5 into a complete ZU5-fold. A similar interaction mode is likely to occur between ZO-1 ZU5 and MRCKβ. The interaction between ZO-1 and MRCKβ requires the kinase to be primed by Cdc42 due to the closed conformation of the kinase. Formation of the ZO-1/MRCKβ complex enriches the kinase at the lamellae of migrating cells. Disruption of the ZO-1/MRCKβ complex inhibits MRCKβ-mediated cell migration. These results demonstrate that ZO-1, a classical scaffold protein with accepted roles in maintaining cell-cell adhesions in stable tissues, also has an active role in cell migration during processes such as tissue development and remodelling.

  • Organizational Affiliation

    Division of Life Science, Molecular Neuroscience Center, State Key Laboratory of Molecular Neuroscience, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Tight junction protein ZO-1118Homo sapiensMutation(s): 2 
Gene Names: TJP1ZO1
UniProt & NIH Common Fund Data Resources
Find proteins for Q07157 (Homo sapiens)
Explore Q07157 
Go to UniProtKB:  Q07157
GTEx:  ENSG00000104067 
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UniProt GroupQ07157
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-03-30
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2024-05-01
    Changes: Data collection, Database references