Structure of Tank-Binding Kinase 1

Experimental Data Snapshot

  • Resolution: 2.40 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.201 

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This is version 1.3 of the entry. See complete history


Structure and ubiquitination-dependent activation of TANK-binding kinase 1.

Tu, D.Zhu, Z.Zhou, A.Y.Yun, C.H.Lee, K.E.Toms, A.V.Li, Y.Dunn, G.P.Chan, E.Thai, T.Yang, S.Ficarro, S.B.Marto, J.A.Jeon, H.Hahn, W.C.Barbie, D.A.Eck, M.J.

(2013) Cell Rep 3: 747-758

  • DOI: https://doi.org/10.1016/j.celrep.2013.01.033
  • Primary Citation of Related Structures:  
    4IM0, 4IM2, 4IM3

  • PubMed Abstract: 

    Upon stimulation by pathogen-associated inflammatory signals, TANK-binding kinase 1 (TBK1) induces type I interferon expression and modulates nuclear factor κB (NF-κB) signaling. Here, we describe the 2.4 Å-resolution crystal structure of nearly full-length TBK1 in complex with specific inhibitors. The structure reveals a dimeric assembly created by an extensive network of interactions among the kinase, ubiquitin-like, and scaffold/dimerization domains. An intact TBK1 dimer undergoes K63-linked polyubiquitination on lysines 30 and 401, and these modifications are required for TBK1 activity. The ubiquitination sites and dimer contacts are conserved in the close homolog inhibitor of κB kinase ε (IKKε) but not in IKKβ, a canonical IKK that assembles in an unrelated manner. The multidomain architecture of TBK1 provides a structural platform for integrating ubiquitination with kinase activation and IRF3 phosphorylation. The structure of TBK1 will facilitate studies of the atypical IKKs in normal and disease physiology and further the development of more specific inhibitors that may be useful as anticancer or anti-inflammatory agents.

  • Organizational Affiliation

    Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Serine/threonine-protein kinase TBK1663Homo sapiensMutation(s): 1 
Gene Names: TBK1NAK
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UHD2 (Homo sapiens)
Explore Q9UHD2 
Go to UniProtKB:  Q9UHD2
GTEx:  ENSG00000183735 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9UHD2
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on 1FV

Download Ideal Coordinates CCD File 
B [auth A]N-{3-[(5-cyclopropyl-2-{[3-(morpholin-4-ylmethyl)phenyl]amino}pyrimidin-4-yl)amino]propyl}cyclobutanecarboxamide
C26 H36 N6 O2
Binding Affinity Annotations 
IDSourceBinding Affinity
1FV PDBBind:  4IM0 IC50: 19 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 2.40 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.201 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 133.921α = 90
b = 133.921β = 90
c = 85.67γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report

Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-03-06
    Type: Initial release
  • Version 1.1: 2013-03-20
    Changes: Other
  • Version 1.2: 2019-07-17
    Changes: Data collection, Database references
  • Version 1.3: 2024-02-28
    Changes: Data collection, Database references, Derived calculations