3CL3

Crystal Structure of a vFLIP-IKKgamma complex: Insights into viral activation of the IKK signalosome


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.261 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of a vFlip-IKKgamma complex: insights into viral activation of the IKK signalosome.

Bagneris, C.Ageichik, A.V.Cronin, N.Wallace, B.Collins, M.Boshoff, C.Waksman, G.Barrett, T.

(2008) Mol Cell 30: 620-631

  • DOI: 10.1016/j.molcel.2008.04.029
  • Primary Citation of Related Structures:  
    3CL3

  • PubMed Abstract: 
  • Key to the pathogenicity of several viruses is activation of the canonical nuclear factor-kappaB (NF-kappaB) transcriptional pathway. Subversion of this tightly regulated mechanism is achieved through the production of host mimetic viral proteins tha ...

    Key to the pathogenicity of several viruses is activation of the canonical nuclear factor-kappaB (NF-kappaB) transcriptional pathway. Subversion of this tightly regulated mechanism is achieved through the production of host mimetic viral proteins that deregulate the transcription process. One such protein is ks-vFLIP (produced by the Kaposi's sarcoma herpes virus [KSHV]), which associates with IKKgamma, an essential component of the IKK complex or signalosome. This interaction renders the canonical NF-kappaB pathway constitutively active and has been linked to Kaposi's sarcoma and other malignancies. In order to elucidate the molecular basis underpinning ks-vFLIP-induced activation of the IKK signalosome, we have determined the crystal structure of a complex involving a fragment of IKKgamma bound to ks-vFLIP at 3.2 A. In addition to identifying and subsequently probing the ks-vFLIP-IKKgamma interface, we have also investigated the effects of a mutation implicated in the genetic disorder anhydrotic ectodermal dysplasia with immunodeficiency (EDA-ID).


    Organizational Affiliation

    Institute of Structural and Molecular Biology, School of Crystallography, Birkbeck College, Malet Street, London WC1E 7HX, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ORF K13AB183Human gammaherpesvirus 8Mutation(s): 0 
Gene Names: vFLIPORF71HHV8GK18_gp80
Find proteins for Q76RF1 (Human herpesvirus 8)
Explore Q76RF1 
Go to UniProtKB:  Q76RF1
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
NF-kappa-B essential modulatorDE130Homo sapiensMutation(s): 0 
Gene Names: IKBKGFIP3NEMO
Find proteins for Q9Y6K9 (Homo sapiens)
Explore Q9Y6K9 
Go to UniProtKB:  Q9Y6K9
NIH Common Fund Data Resources
PHAROS  Q9Y6K9
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.261 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 145.67α = 90
b = 145.67β = 90
c = 101.54γ = 120
Software Package:
Software NamePurpose
ADSCdata collection
SHARPphasing
CNSrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-06-17
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2018-06-13
    Changes: Data collection, Database references, Source and taxonomy