4IWQ

Crystal structure and mechanism of activation of TBK1

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.262 
  • R-Value Observed: 0.264 

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This is version 1.1 of the entry. See complete history. 


Literature

Crystal structure and mechanism of activation of TANK-binding kinase 1.

Larabi, A., Devos, J.M., Ng, S.L., Nanao, M.H., Round, A., Maniatis, T., Panne, D.

(2013) Cell Rep 3: 734-746

  • DOI: 10.1016/j.celrep.2013.01.034
  • Primary Citation of Related Structures:  
    4IWO, 4IWP, 4IWQ, 4IW0

  • PubMed Abstract: 

    • Tank-binding kinase I (TBK1) plays a key role in the innate immune system by integrating signals from pattern-recognition receptors. Here, we report the X-ray crystal structures of inhibitor-bound inactive and active TBK1 determined to 2.6 Å and 4.0 Å re ...

    Tank-binding kinase I (TBK1) plays a key role in the innate immune system by integrating signals from pattern-recognition receptors. Here, we report the X-ray crystal structures of inhibitor-bound inactive and active TBK1 determined to 2.6 Å and 4.0 Å resolution, respectively. The structures reveal a compact dimer made up of trimodular subunits containing an N-terminal kinase domain (KD), a ubiquitin-like domain (ULD), and an α-helical scaffold dimerization domain (SDD). Activation rearranges the KD into an active conformation while maintaining the overall dimer conformation. Low-resolution SAXS studies reveal that the missing C-terminal domain (CTD) extends away from the main body of the kinase dimer. Mutants that interfere with TBK1 dimerization show significantly reduced trans-autophosphorylation but retain the ability to bind adaptor proteins through the CTD. Our results provide detailed insights into the architecture of TBK1 and the molecular mechanism of activation.

    Organizational Affiliation: 

    EMBL Grenoble, 6 Rue Jules Horowitz, Grenoble 38042, France.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Serine/threonine-protein kinase TBK1 A659Homo sapiensMutation(s): 1 
Gene Names: NAK, TBK1
EC: 2.7.11.1
Find proteins for Q9UHD2 (Homo sapiens)
Explore Q9UHD2 
Go to UniProtKB:  Q9UHD2
NIH Common Fund Data Resources
PHAROS:  Q9UHD2
GTEx:  ENSG00000183735
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
1FV
Query on 1FV
Download Ideal Coordinates CCD File 
A
N-{3-[(5-cyclopropyl-2-{[3-(morpholin-4-ylmethyl)phenyl]amino}pyrimidin-4-yl)amino]propyl}cyclobutanecarboxamide
C26 H36 N6 O2
UKBGBACORPRCGG-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.262 
  • R-Value Observed: 0.264 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 135.76α = 90
b = 135.76β = 90
c = 86.5γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction
ADSCdata collection
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

  • Deposited Date: 2013-01-24 
  • Released Date: 2013-03-13 
    • Deposition Author(s): Panne, D., Larabi, A.

Revision History 

  • Version 1.0: 2013-03-13
    Type: Initial release
  • Version 1.1: 2013-05-22
    Changes: Database references