5YVG

Crystal structure of Karyopherin beta2 in complex with FUS(full length)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.05 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.251 
  • R-Value Observed: 0.365 

wwPDB Validation   3D Report Full Report



Literature

Nuclear Import Receptor Inhibits Phase Separation of FUS through Binding to Multiple Sites.

Yoshizawa, T.Ali, R.Jiou, J.Fung, H.Y.J.Burke, K.A.Kim, S.J.Lin, Y.Peeples, W.B.Saltzberg, D.Soniat, M.Baumhardt, J.M.Oldenbourg, R.Sali, A.Fawzi, N.L.Rosen, M.K.Chook, Y.M.

(2018) Cell 173: 693-705.e22

  • DOI: 10.1016/j.cell.2018.03.003
  • Primary Citation of Related Structures:  
    5YVG, 5YVI, 5YVH

  • PubMed Abstract: 
  • Liquid-liquid phase separation (LLPS) is believed to underlie formation of biomolecular condensates, cellular compartments that concentrate macromolecules without surrounding membranes. Physical mechanisms that control condensate formation/dissolutio ...

    Liquid-liquid phase separation (LLPS) is believed to underlie formation of biomolecular condensates, cellular compartments that concentrate macromolecules without surrounding membranes. Physical mechanisms that control condensate formation/dissolution are poorly understood. The RNA-binding protein fused in sarcoma (FUS) undergoes LLPS in vitro and associates with condensates in cells. We show that the importin karyopherin-β2/transportin-1 inhibits LLPS of FUS. This activity depends on tight binding of karyopherin-β2 to the C-terminal proline-tyrosine nuclear localization signal (PY-NLS) of FUS. Nuclear magnetic resonance (NMR) analyses reveal weak interactions of karyopherin-β2 with sequence elements and structural domains distributed throughout the entirety of FUS. Biochemical analyses demonstrate that most of these same regions also contribute to LLPS of FUS. The data lead to a model where high-affinity binding of karyopherin-β2 to the FUS PY-NLS tethers the proteins together, allowing multiple, distributed weak intermolecular contacts to disrupt FUS self-association, blocking LLPS. Karyopherin-β2 may act analogously to control condensates in diverse cellular contexts.


    Organizational Affiliation

    Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Howard Hughes Medical Institute (HHMI) Summer Institute, Marine Biological Laboratory, Woods Hole, MA 02543, USA. Electronic address: yuhmin.chook@utsouthwestern.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Transportin-1AB868Homo sapiensMutation(s): 0 
Gene Names: TNPO1KPNB2MIP1TRN
Find proteins for Q92973 (Homo sapiens)
Explore Q92973 
Go to UniProtKB:  Q92973
NIH Common Fund Data Resources
PHAROS  Q92973
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
RNA-binding protein FUSXY528Homo sapiensMutation(s): 0 
Gene Names: FUSTLS
Find proteins for P35637 (Homo sapiens)
Explore P35637 
Go to UniProtKB:  P35637
NIH Common Fund Data Resources
PHAROS  P35637
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.05 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.251 
  • R-Value Observed: 0.365 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 108.219α = 90
b = 145.015β = 94.552
c = 108.681γ = 90
Software Package:
Software NamePurpose
phenix.refinerefinement
PHENIXrefinement
HKL-3000data reduction
HKL-3000data scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-05-16
    Type: Initial release