3WP0

Crystal structure of Dlg GK in complex with a phosphor-Lgl2 peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.04 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.166 
  • R-Value Observed: 0.167 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Phosphorylation-dependent interaction between tumor suppressors Dlg and Lgl

Zhu, J.Shang, Y.Wan, Q.Xia, Y.Chen, J.Du, Q.Zhang, M.

(2014) Cell Res 24: 451-463

  • DOI: 10.1038/cr.2014.16
  • Primary Citation of Related Structures:  
    3WP0, 3WP1

  • PubMed Abstract: 
  • The tumor suppressors Discs Large (Dlg), Lethal giant larvae (Lgl) and Scribble are essential for the establishment and maintenance of epithelial cell polarity in metazoan. Dlg, Lgl and Scribble are known to interact strongly with each other genetically and form the evolutionarily conserved Scribble complex ...

    The tumor suppressors Discs Large (Dlg), Lethal giant larvae (Lgl) and Scribble are essential for the establishment and maintenance of epithelial cell polarity in metazoan. Dlg, Lgl and Scribble are known to interact strongly with each other genetically and form the evolutionarily conserved Scribble complex. Despite more than a decade of extensive research, it has not been demonstrated whether Dlg, Lgl and Scribble physically interact with each other. Here, we show that Dlg directly interacts with Lgl in a phosphorylation-dependent manner. Phosphorylation of any one of the three conserved Ser residues situated in the central linker region of Lgl is sufficient for its binding to the Dlg guanylate kinase (GK) domain. The crystal structures of the Dlg4 GK domain in complex with two phosphor-Lgl2 peptides reveal the molecular mechanism underlying the specific and phosphorylation-dependent Dlg/Lgl complex formation. In addition to providing a mechanistic basis underlying the regulated formation of the Scribble complex, the structure of the Dlg/Lgl complex may also serve as a starting point for designing specific Dlg inhibitors for targeting the Scribble complex formation.


    Organizational Affiliation

    1] Division of Life Science, State Key Laboratory of Molecular Neuroscience, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China [2] Center of Systems Biology and Human Health, School of Science and Institute for Advanced Study, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Disks large homolog 4A187Rattus norvegicusMutation(s): 0 
Gene Names: Dlg4Dlgh4Psd95
UniProt
Find proteins for P31016 (Rattus norvegicus)
Explore P31016 
Go to UniProtKB:  P31016
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Lethal(2) giant larvae protein homolog 2B15Homo sapiensMutation(s): 0 
Gene Names: LLGL2
UniProt & NIH Common Fund Data Resources
Find proteins for Q6P1M3 (Homo sapiens)
Explore Q6P1M3 
Go to UniProtKB:  Q6P1M3
PHAROS:  Q6P1M3
Protein Feature View
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.04 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.166 
  • R-Value Observed: 0.167 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 84.082α = 90
b = 84.082β = 90
c = 65.883γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-03-19
    Type: Initial release
  • Version 1.1: 2014-04-30
    Changes: Database references