3CL3

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 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

  • 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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ORF K13
A, B
183Human herpesvirus 8Mutation(s): 0 
Gene Names: ORF71
Find proteins for Q76RF1 (Human herpesvirus 8)
Go to UniProtKB:  Q76RF1
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
NF-kappa-B essential modulator
D, E
130Homo sapiensMutation(s): 0 
Gene Names: IKBKG (FIP3, NEMO)
Find proteins for Q9Y6K9 (Homo sapiens)
Go to Gene View: IKBKG
Go to UniProtKB:  Q9Y6K9
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.261 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 145.670α = 90.00
b = 145.670β = 90.00
c = 101.540γ = 120.00
Software Package:
Software NamePurpose
CNSrefinement
SHARPphasing
ADSCdata collection
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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