Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 76.00 kDa 
• Atom Count: 5253 
• Modelled Residue Count: 646 
• Deposited Residue Count: 657 
• Unique protein chains: 1

4JLC

Crystal structure of mouse TBK1 bound to SU6668

• PDB DOI: 10.2210/pdb4JLC/pdb

• Classification: TRANSFERASE/TRANSFERASE INHIBITOR
• Organism(s): Mus musculus
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2013-03-12 Released: 2013-06-19 
• Deposition Author(s): Li, P.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.267 
• R-Value Work: 0.234 
• R-Value Observed: 0.237 

Literature

Structural Insights into the Functions of TBK1 in Innate Antimicrobial Immunity.

Shu, C., Sankaran, B., Chaton, C.T., Herr, A.B., Mishra, A., Peng, J., Li, P.

(2013) Structure 21: 1137-1148

• PubMed: 23746807 
• DOI: 10.1016/j.str.2013.04.025
• Primary Citation of Related Structures:  
  4JL9, 4JLC


• PubMed Abstract: 
  

Tank-binding kinase 1 (TBK1) is a serine/threonine protein-kinase mediating innate antimicrobial immunity. TBK1 is involved in the signaling of TLRs, RLRs, and STING-mediated sensing of cytosolic DNA. Stimulation of these receptors results in the activation of TBK1, which phosphorylates interferon regulatory factor (IRF)-3. Phosphorylated IRF-3 translocates into the nucleus to initiate the transcription of the interferon (IFN)-β gene. Here, we show that TBK1 is activated by autophosphorylation at residue Ser172. Structures of TBK1 bound to two inhibitors showed that TBK1 has the IκB kinase fold with three distinct domains: the kinase domain, the ubiquitin-like domain, and the scaffold and dimerization domain. However, the overall structures of the TBK1 monomer and its dimer are different from IKKβ in the arrangements of the three domains and in dimer formation. Phosphorylation of IRF-3 by TBK1 in vitro results in its oligomerization, and phosphorylation of residue Ser386 plays a key role in IRF-3 activation.

---

Organizational Affiliation: 

Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843-2128, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Serine/threonine-protein kinase TBK1	A	657	Mus musculus	Mutation(s): 0  Gene Names: Tbk1 EC: 2.7.11.1
UniProt
Find proteins for Q9WUN2 (Mus musculus) Explore Q9WUN2  Go to UniProtKB:  Q9WUN2

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SU6	B [auth A]	3-{2,4-dimethyl-5-[(Z)-(2-oxo-1,2-dihydro-3H-indol-3-ylidene)methyl]-1H-pyrrol-3-yl}propanoic acid C18 H18 N2 O3 NHFDRBXTEDBWCZ-ZROIWOOFSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.267 
• R-Value Work: 0.234 
• R-Value Observed: 0.237 
• Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 140.48	α = 90
b = 140.48	β = 90
c = 86.56	γ = 120

Software Package:

Software Name	Purpose
ADSC	data collection
MOLREP	phasing
PHENIX	refinement
MOSFLM	data reduction
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2013-03-12 
• Released Date: 2013-06-19 
Deposition Author(s): Li, P.

Revision History  

• Version 1.0: 2013-06-19
  Type: Initial release
  
• Version 1.1: 2013-07-17
  Changes: Database references