4JGH

Structure of the SOCS2-Elongin BC complex bound to an N-terminal fragment of Cullin5


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.225 
  • R-Value Observed: 0.225 

wwPDB Validation 3D Report Full Report



Literature

Structural basis of intersubunit recognition in elongin BC-cullin 5-SOCS box ubiquitin-protein ligase complexes.

Kim, Y.K.Kwak, M.J.Ku, B.Suh, H.Y.Joo, K.Lee, J.Jung, J.U.Oh, B.H.

(2013) Acta Crystallogr D Biol Crystallogr 69: 1587-1597

  • DOI: 10.1107/S0907444913011220
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The cullin-RING ubiquitin ligases are multisubunit complexes that ubiquitinate various proteins. Six different cullins encoded by the human genome selectively pair with different adaptors and substrate receptors. It is presently poorly understood how ...

    The cullin-RING ubiquitin ligases are multisubunit complexes that ubiquitinate various proteins. Six different cullins encoded by the human genome selectively pair with different adaptors and substrate receptors. It is presently poorly understood how cullin-2 (Cul2) and cullin-5 (Cul5) associate specifically with their adaptor elongin BC and a SOCS-box-containing substrate receptor. Here, crystallographic and mutational analyses of a quaternary complex between the N-terminal half of Cul5, elongin BC and SOCS2 are reported. Cul5 interacts extensively with elongin BC via residues that are highly conserved in Cul2 but not in other cullins. Cul5 also interacts with SOCS2, but via only two residues, Pro184 and Arg186, which are located in the C-terminal part of the SOCS box called the Cul5 box. Pro184 makes a ring-to-ring interaction with Trp53 of Cul5, which is substituted by alanine in Cul2. This interaction is shown to contribute significantly to the overall binding affinity between Cul5 and SOCS2-elongin BC. This study provides structural bases underlying the specificity of Cul5 and Cul2 for elongin BC and their preferential association with Cul5 or Cul2 box-containing substrate receptors.


    Organizational Affiliation

    Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Republic of Korea.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Transcription elongation factor B polypeptide 2B118Mus musculusMutation(s): 0 
Gene Names: Mus musculusTceb2Elob
Find proteins for P62869 (Mus musculus)
Explore P62869 
Go to UniProtKB:  P62869
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Transcription elongation factor B polypeptide 1C96Mus musculusMutation(s): 0 
Gene Names: Mus musculusTceb1Eloc
Find proteins for P83940 (Mus musculus)
Explore P83940 
Go to UniProtKB:  P83940
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Suppressor of cytokine signaling 2A173Homo sapiensMutation(s): 0 
Gene Names: CIS2Homo sapiensSOCS2SSI2STATI2
Find proteins for O14508 (Homo sapiens)
Explore O14508 
Go to UniProtKB:  O14508
NIH Common Fund Data Resources
PHAROS  O14508
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Cullin-5D378Homo sapiensMutation(s): 2 
Gene Names: CUL5Homo sapiensVACM1
Find proteins for Q93034 (Homo sapiens)
Explore Q93034 
Go to UniProtKB:  Q93034
NIH Common Fund Data Resources
PHAROS  Q93034
Protein Feature View
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.225 
  • R-Value Observed: 0.225 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 138.849α = 90
b = 141.456β = 90
c = 182.001γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
CNSphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-08-07
    Type: Initial release