5EOA

Crystal structure of OPTN E50K mutant and TBK1 complex

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.503 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.199 

wwPDB Validation 3D Report Full Report


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Literature

Structural insights into the interaction and disease mechanism of neurodegenerative disease-associated optineurin and TBK1 proteins.

Li, F., Xie, X., Wang, Y., Liu, J., Cheng, X., Guo, Y., Gong, Y., Hu, S., Pan, L.

(2016) Nat Commun 7: 12708-12708

  • DOI: 10.1038/ncomms12708
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • Optineurin is an important autophagy receptor involved in several selective autophagy processes, during which its function is regulated by TBK1. Mutations of optineurin and TBK1 are both associated with neurodegenerative diseases. However, the mechan ...

    Optineurin is an important autophagy receptor involved in several selective autophagy processes, during which its function is regulated by TBK1. Mutations of optineurin and TBK1 are both associated with neurodegenerative diseases. However, the mechanistic basis underlying the specific interaction between optineurin and TBK1 is still elusive. Here we determine the crystal structures of optineurin/TBK1 complex and the related NAP1/TBK1 complex, uncovering the detailed molecular mechanism governing the optineurin and TBK1 interaction, and revealing a general binding mode between TBK1 and its associated adaptor proteins. In addition, we demonstrate that the glaucoma-associated optineurin E50K mutation not only enhances the interaction between optineurin and TBK1 but also alters the oligomeric state of optineurin, and the ALS-related TBK1 E696K mutation specifically disrupts the optineurin/TBK1 complex formation but has little effect on the NAP1/TBK1 complex. Thus, our study provides mechanistic insights into those currently known disease-causing optineurin and TBK1 mutations found in patients.

    Organizational Affiliation: 

    State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Optineurin
A, B
82Homo sapiensMutation(s): 1 
Gene Names: OPTN (FIP2, GLC1E, HIP7, HYPL, NRP)
Find proteins for Q96CV9 (Homo sapiens)
Go to Gene View: OPTN
Go to UniProtKB:  Q96CV9
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase TBK1
C, D
57Homo sapiensMutation(s): 0 
Gene Names: TBK1 (NAK)
EC: 2.7.11.1
Find proteins for Q9UHD2 (Homo sapiens)
Go to Gene View: TBK1
Go to UniProtKB:  Q9UHD2
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.503 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.199 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 36.824α = 90.00
b = 54.549β = 90.00
c = 153.305γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
PHASERphasing
HKL-2000data reduction
PHENIXrefinement

Structure Validation

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View more in-depth experimental data

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Natural Science Foundation of ChinaChina31470749
National Basic Research Program of ChinaChina2013CB836900

Revision History 

  • Version 1.0: 2016-09-28
    Type: Initial release