5YVH

Crystal structure of Karyopherin beta2 in complex with FUS(371-526)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.15 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

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:  

  • 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 Bioengineering and Therapeutic Sciences, Department of Pharmaceutical Chemistry, California Institute for Quantitative Biosciences, University of California, San Francisco, San Francisco, CA 94158, USA.,Department of Biophysics and Howard Hughes Medical Institute, 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.,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.,Marine Biological Laboratories, 7 MBL Street, Woods Hole, MA 02543, USA.,Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.,Department of Biophysics and Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.,Department of Molecular Pharmacology, Physiology and Biotechnology, Brown University, Providence, RI 02912, USA.,Department of Biophysics and Howard Hughes Medical Institute, 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: michael.rosen@utsouthwestern.edu.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Transportin-1
A
868Homo sapiensMutation(s): 0 
Gene Names: TNPO1 (KPNB2, MIP1, TRN)
Find proteins for Q92973 (Homo sapiens)
Go to Gene View: TNPO1
Go to UniProtKB:  Q92973
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
RNA-binding protein FUS
B
158Homo sapiensMutation(s): 0 
Gene Names: FUS (TLS)
Find proteins for P35637 (Homo sapiens)
Go to Gene View: FUS
Go to UniProtKB:  P35637
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.15 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.213 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 129.425α = 90.00
b = 156.532β = 90.00
c = 67.822γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-3000data reduction
PHASERphasing
HKL-3000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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