5N4W

Crystal structure of the Cul2-Rbx1-EloBC-VHL ubiquitin ligase complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.9 Å
  • R-Value Free: 0.346 
  • R-Value Work: 0.302 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal Structure of the Cul2-Rbx1-EloBC-VHL Ubiquitin Ligase Complex.

Cardote, T.A.F.Gadd, M.S.Ciulli, A.

(2017) Structure 25: 901-911.e3

  • DOI: 10.1016/j.str.2017.04.009

  • PubMed Abstract: 
  • Cullin RING E3 ubiquitin ligases (CRLs) function in the ubiquitin proteasome system to catalyze the transfer of ubiquitin from E2 conjugating enzymes to specific substrate proteins. CRLs are large dynamic complexes and attractive drug targets for the ...

    Cullin RING E3 ubiquitin ligases (CRLs) function in the ubiquitin proteasome system to catalyze the transfer of ubiquitin from E2 conjugating enzymes to specific substrate proteins. CRLs are large dynamic complexes and attractive drug targets for the development of small-molecule inhibitors and chemical inducers of protein degradation. The atomic details of whole CRL assembly and interactions that dictate subunit specificity remain elusive. Here we present the crystal structure of a pentameric CRL2 VHL complex, composed of Cul2, Rbx1, Elongin B, Elongin C, and pVHL. The structure traps a closed state of full-length Cul2 and a new pose of Rbx1 in a trajectory from closed to open conformation. We characterize hotspots and binding thermodynamics at the interface between Cul2 and pVHL-EloBC and identify mutations that contribute toward a selectivity switch for Cul2 versus Cul5 recognition. Our findings provide structural and biophysical insights into the whole Cul2 complex that could aid future drug targeting.


    Organizational Affiliation

    Division of Biological Chemistry and Drug Discovery, School of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, UK. Electronic address: a.ciulli@dundee.ac.uk.,Division of Biological Chemistry and Drug Discovery, School of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cullin-2
A
748Homo sapiensMutation(s): 0 
Gene Names: CUL2
Find proteins for Q13617 (Homo sapiens)
Go to Gene View: CUL2
Go to UniProtKB:  Q13617
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Von Hippel-Lindau disease tumor suppressor
V
160Homo sapiensMutation(s): 0 
Gene Names: VHL
Find proteins for P40337 (Homo sapiens)
Go to Gene View: VHL
Go to UniProtKB:  P40337
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
E3 ubiquitin-protein ligase RBX1
R
102Homo sapiensMutation(s): 0 
Gene Names: RBX1 (RNF75, ROC1)
EC: 2.3.2.27, 2.3.2.32
Find proteins for P62877 (Homo sapiens)
Go to Gene View: RBX1
Go to UniProtKB:  P62877
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Elongin-B
B
104Homo sapiensMutation(s): 0 
Gene Names: ELOB (TCEB2)
Find proteins for Q15370 (Homo sapiens)
Go to Gene View: ELOB
Go to UniProtKB:  Q15370
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Elongin-C
C
97Homo sapiensMutation(s): 0 
Gene Names: ELOC (TCEB1)
Find proteins for Q15369 (Homo sapiens)
Go to Gene View: ELOC
Go to UniProtKB:  Q15369
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
R
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.9 Å
  • R-Value Free: 0.346 
  • R-Value Work: 0.302 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 86.038α = 90.00
b = 190.962β = 90.00
c = 238.885γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
PHASERphasing
DIALSdata reduction
Aimlessdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
European Research CouncilUnited KingdomERC-2012-StG-311460
Fundacao para a Ciencia e TecnologiaPortugalSFRH/BD/92417/2013

Revision History 

  • Version 1.0: 2017-06-07
    Type: Initial release
  • Version 1.1: 2017-06-21
    Type: Database references
  • Version 1.2: 2018-10-24
    Type: Advisory, Data collection, Derived calculations
  • Version 1.3: 2019-04-24
    Type: Data collection, Source and taxonomy