6JJY

Crystal Structure of KIBRA and beta-Dystroglycan


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.206 
  • R-Value Observed: 0.210 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Decoding WW domain tandem-mediated target recognitions in tissue growth and cell polarity.

Lin, Z.Yang, Z.Xie, R.Ji, Z.Guan, K.Zhang, M.

(2019) Elife 8

  • DOI: https://doi.org/10.7554/eLife.49439
  • Primary Citation of Related Structures:  
    6J68, 6JJW, 6JJX, 6JJY, 6JJZ, 6JK0, 6JK1

  • PubMed Abstract: 

    WW domain tandem-containing proteins such as KIBRA, YAP, and MAGI play critical roles in cell growth and polarity via binding to and positioning target proteins in specific subcellular regions. An immense disparity exists between promiscuity of WW domain-mediated target bindings and specific roles of WW domain proteins in cell growth regulation. Here, we discovered that WW domain tandems of KIBRA and MAGI, but not YAP, bind to specific target proteins with extremely high affinity and exquisite sequence specificity. Via systematic structural biology and biochemistry approaches, we decoded the target binding rules of WW domain tandems from cell growth regulatory proteins and uncovered a list of previously unknown WW tandem binding proteins including β-Dystroglycan, JCAD, and PTPN21. The WW tandem-mediated target recognition mechanisms elucidated here can guide functional studies of WW domain proteins in cell growth and polarity as well as in other cellular processes including neuronal synaptic signaling.


  • Organizational Affiliation

    Division of Life Science, State Key Laboratory of Molecular Neuroscience, Hong Kong University of Science and Technology, Hong Kong, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Protein KIBRA134Mus musculusMutation(s): 0 
Gene Names: Wwc1Kiaa0869
UniProt
Find proteins for Q5SXA9 (Mus musculus)
Explore Q5SXA9 
Go to UniProtKB:  Q5SXA9
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5SXA9
Sequence Annotations
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  • Reference Sequence

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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Peptide from DystroglycanB [auth U]21Homo sapiensMutation(s): 0 
Gene Names: DAG1
UniProt & NIH Common Fund Data Resources
Find proteins for Q14118 (Homo sapiens)
Explore Q14118 
Go to UniProtKB:  Q14118
PHAROS:  Q14118
GTEx:  ENSG00000173402 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ14118
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.206 
  • R-Value Observed: 0.210 
  • Space Group: P 3 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 73.483α = 90
b = 73.483β = 90
c = 105.322γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-3000data reduction
HKL-3000data scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-09-25
    Type: Initial release
  • Version 1.1: 2023-11-22
    Changes: Data collection, Database references, Refinement description