3V3Q

Crystal Structure of Human Nur77 Ligand-binding Domain in Complex with Ethyl 2-[2,3,4 trimethoxy-6(1-octanoyl)phenyl]acetate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.22 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.209 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The orphan nuclear receptor Nur77 regulates LKB1 localization and activates AMPK

Zhan, Y.Chen, Y.Zhang, Q.Zhuang, J.Tian, M.Chen, H.Zhang, L.Zhang, H.He, J.Wang, W.Wu, R.Wang, Y.Shi, C.Yang, K.Li, A.Xin, Y.Li, T.Y.Yang, J.Y.Zheng, Z.Yu, C.Lin, S.Chang, C.Huang, P.Lin, T.Wu, Q.

(2012) Nat.Chem.Biol. 8: 897-904

  • DOI: 10.1038/nchembio.1069
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Liver kinase B1 (LKB1) has important roles in governing energy homeostasis by regulating the activity of the energy sensor kinase AMP-activated protein kinase (AMPK). The regulation of LKB1 function, however, is still poorly understood. Here we demon ...

    Liver kinase B1 (LKB1) has important roles in governing energy homeostasis by regulating the activity of the energy sensor kinase AMP-activated protein kinase (AMPK). The regulation of LKB1 function, however, is still poorly understood. Here we demonstrate that the orphan nuclear receptor Nur77 binds and sequesters LKB1 in the nucleus, thereby attenuating AMPK activation. This Nur77 function is antagonized by the chemical compound ethyl 2-[2,3,4-trimethoxy-6-(1-octanoyl)phenyl]acetate (TMPA), which interacts with Nur77 with high affinity and at specific sites. TMPA binding of Nur77 results in the release and shuttling of LKB1 to the cytoplasm to phosphorylate AMPK╬▒. Moreover, TMPA effectively reduces blood glucose and alleviates insulin resistance in type II db/db and high-fat diet- and streptozotocin-induced diabetic mice but not in diabetic littermates with the Nur77 gene knocked out. This study attains a mechanistic understanding of the regulation of LKB1-AMPK axis and implicates Nur77 as a new and amenable target for the design and development of therapeutics to treat metabolic diseases.


    Organizational Affiliation

    State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, Fujian, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Nuclear receptor subfamily 4 group A member 1
A, B
257Homo sapiensMutation(s): 0 
Gene Names: NR4A1 (GFRP1, HMR, NAK1)
Find proteins for P22736 (Homo sapiens)
Go to Gene View: NR4A1
Go to UniProtKB:  P22736
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download SDF File 
Download CCD File 
B
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

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Download CCD File 
A, B
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
TMY
Query on TMY

Download SDF File 
Download CCD File 
A
ethyl (2,3,4-trimethoxy-6-octanoylphenyl)acetate
C21 H32 O6
WCYMJQXRLIDSAQ-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
TMYKd: 250 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.22 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.209 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 74.242α = 90.00
b = 76.773β = 90.00
c = 129.193γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
PDB_EXTRACTdata extraction
MAR345dtbdata collection
AUTOMARdata reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-09-26
    Type: Initial release
  • Version 1.1: 2013-07-10
    Type: Database references