3TAD

Crystal Structure of the Liprin-alpha/Liprin-beta complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.216 

wwPDB Validation   3D Report Full Report


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Literature

Liprin-mediated large signaling complex organization revealed by the liprin-alpha/CASK and liprin-alpha/liprin-beta complex structures

Wei, Z.Zheng, S.Spangler, S.A.Yu, C.Hoogenraad, C.C.Zhang, M.

(2011) Mol Cell 43: 586-598

  • DOI: 10.1016/j.molcel.2011.07.021
  • Primary Citation of Related Structures:  
    3TAC, 3TAD

  • PubMed Abstract: 
  • Liprins are highly conserved scaffold proteins that regulate cell adhesion, cell migration, and synapse development by binding to diverse target proteins. The molecular basis governing liprin/target interactions is poorly understood. The liprin-α2/CASK complex structure solved here reveals that the three SAM domains of liprin-α form an integrated supramodule that binds to the CASK kinase-like domain ...

    Liprins are highly conserved scaffold proteins that regulate cell adhesion, cell migration, and synapse development by binding to diverse target proteins. The molecular basis governing liprin/target interactions is poorly understood. The liprin-α2/CASK complex structure solved here reveals that the three SAM domains of liprin-α form an integrated supramodule that binds to the CASK kinase-like domain. As supported by biochemical and cellular studies, the interaction between liprin-α and CASK is unique to vertebrates, implying that the liprin-α/CASK interaction is likely to regulate higher-order brain functions in mammals. Consistently, we demonstrate that three recently identified X-linked mental retardation mutants of CASK are defective in binding to liprin-α. We also solved the liprin-α/liprin-β SAM domain complex structure, which uncovers the mechanism underlying liprin heterodimerizaion. Finally, formation of the CASK/liprin-α/liprin-β ternary complex suggests that liprins can mediate assembly of target proteins into large protein complexes capable of regulating numerous cellular activities.


    Organizational Affiliation

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



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Liprin-alpha-2A, B297Homo sapiensMutation(s): 0 
Gene Names: PPFIA2
Find proteins for O75334 (Homo sapiens)
Explore O75334 
Go to UniProtKB:  O75334
NIH Common Fund Data Resources
PHAROS:  O75334
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Liprin-beta-1C, D265Mus musculusMutation(s): 0 
Gene Names: Ppfibp1Kiaa1230
Find proteins for Q8C8U0 (Mus musculus)
Explore Q8C8U0 
Go to UniProtKB:  Q8C8U0
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.214 
  • R-Value Observed: 0.216 
  • Space Group: P 61
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 141.88α = 90
b = 141.88β = 90
c = 181.059γ = 120
Software Package:
Software NamePurpose
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-10-12
    Type: Initial release