5V4B

Crystal structure of the Skp1-FBXW7-DISC1 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.184 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

FBXW7 regulates DISC1 stability via the ubiquitin-proteosome system.

Yalla, K.Elliott, C.Day, J.P.Findlay, J.Barratt, S.Hughes, Z.A.Wilson, L.Whiteley, E.Popiolek, M.Li, Y.Dunlop, J.Killick, R.Adams, D.R.Brandon, N.J.Houslay, M.D.Hao, B.Baillie, G.S.

(2018) Mol. Psychiatry 23: 1278-1286

  • DOI: 10.1038/mp.2017.138

  • PubMed Abstract: 
  • Disrupted in schizophrenia 1 (DISC1) is a multi-functional scaffolding protein that has been associated with neuropsychiatric disease. The role of DISC1 is to assemble protein complexes that promote neural development and signaling, hence tight contr ...

    Disrupted in schizophrenia 1 (DISC1) is a multi-functional scaffolding protein that has been associated with neuropsychiatric disease. The role of DISC1 is to assemble protein complexes that promote neural development and signaling, hence tight control of the concentration of cellular DISC1 in neurons is vital to brain function. Using structural and biochemical techniques, we show for we believe the first time that not only is DISC1 turnover elicited by the ubiquitin proteasome system (UPS) but that it is orchestrated by the F-Box protein, FBXW7. We present the structure of FBXW7 bound to the DISC1 phosphodegron motif and exploit this information to prove that disruption of the FBXW7-DISC1 complex results in a stabilization of DISC1. This action can counteract DISC1 deficiencies observed in neural progenitor cells derived from induced pluripotent stem cells from schizophrenia patients with a DISC1 frameshift mutation. Thus manipulation of DISC1 levels via the UPS may provide a novel method to explore DISC1 function.


    Organizational Affiliation

    Institute of Psychiatry, Psychology and Neuroscience, King's College, London, UK.,College of Veterinary Medical and Life Sciences, Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK.,AstraZeneca, Neuroscience, Innovative Medicines & Early Development, Waltham, MA, USA.,Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, UK.,Institute of Pharmaceutical Science, King's College, London, UK.,Department of Molecular Biology and Biophysics, University of Connecticut Health Centre, Farmington, CT, USA.,Neuroscience Research Unit, Pfizer Inc, Cambridge, MA, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
S-phase kinase-associated protein 1,S-phase kinase-associated protein 1
A
149Homo sapiensMutation(s): 1 
Gene Names: SKP1 (EMC19, OCP2, SKP1A, TCEB1L)
Find proteins for P63208 (Homo sapiens)
Go to Gene View: SKP1
Go to UniProtKB:  P63208
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
F-box/WD repeat-containing protein 7
B
444Homo sapiensMutation(s): 0 
Gene Names: FBXW7 (FBW7, FBX30, SEL10)
Find proteins for Q969H0 (Homo sapiens)
Go to Gene View: FBXW7
Go to UniProtKB:  Q969H0
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
DISC1 peptide
C
15Homo sapiensMutation(s): 0 
Gene Names: DISC1 (KIAA0457)
Find proteins for Q9NRI5 (Homo sapiens)
Go to Gene View: DISC1
Go to UniProtKB:  Q9NRI5
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
IMD
Query on IMD

Download SDF File 
Download CCD File 
B
IMIDAZOLE
C3 H5 N2
RAXXELZNTBOGNW-UHFFFAOYSA-O
 Ligand Interaction
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
C
L-PEPTIDE LINKINGC3 H8 N O6 PSER
TPO
Query on TPO
C
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.184 
  • Space Group: I 41 2 2
Unit Cell:
Length (Å)Angle (°)
a = 233.514α = 90.00
b = 233.514β = 90.00
c = 108.438γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
HKL-2000data scaling
REFMACrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-09-20
    Type: Initial release
  • Version 1.1: 2018-05-16
    Type: Data collection, Database references