3OGM

Structure of COI1-ASK1 in complex with coronatine and the JAZ1 degron


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.34 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.226 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Jasmonate perception by inositol-phosphate-potentiated COI1-JAZ co-receptor.

Sheard, L.B.Tan, X.Mao, H.Withers, J.Ben-Nissan, G.Hinds, T.R.Kobayashi, Y.Hsu, F.F.Sharon, M.Browse, J.He, S.Y.Rizo, J.Howe, G.A.Zheng, N.

(2010) Nature 468: 400-405

  • DOI: 10.1038/nature09430
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Jasmonates are a family of plant hormones that regulate plant growth, development and responses to stress. The F-box protein CORONATINE INSENSITIVE 1 (COI1) mediates jasmonate signalling by promoting hormone-dependent ubiquitylation and degradation o ...

    Jasmonates are a family of plant hormones that regulate plant growth, development and responses to stress. The F-box protein CORONATINE INSENSITIVE 1 (COI1) mediates jasmonate signalling by promoting hormone-dependent ubiquitylation and degradation of transcriptional repressor JAZ proteins. Despite its importance, the mechanism of jasmonate perception remains unclear. Here we present structural and pharmacological data to show that the true Arabidopsis jasmonate receptor is a complex of both COI1 and JAZ. COI1 contains an open pocket that recognizes the bioactive hormone (3R,7S)-jasmonoyl-l-isoleucine (JA-Ile) with high specificity. High-affinity hormone binding requires a bipartite JAZ degron sequence consisting of a conserved α-helix for COI1 docking and a loop region to trap the hormone in its binding pocket. In addition, we identify a third critical component of the jasmonate co-receptor complex, inositol pentakisphosphate, which interacts with both COI1 and JAZ adjacent to the ligand. Our results unravel the mechanism of jasmonate perception and highlight the ability of F-box proteins to evolve as multi-component signalling hubs.


    Organizational Affiliation

    Department of Pharmacology, Box 357280, University of Washington, Seattle, Washington 98195, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SKP1-like protein 1A
A, C, E, G, I, K, M, O
160Arabidopsis thalianaMutation(s): 0 
Gene Names: SKP1A (ASK1, SKP1, UIP1)
Find proteins for Q39255 (Arabidopsis thaliana)
Go to UniProtKB:  Q39255
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Coronatine-insensitive protein 1
B, D, F, H, J, L, N, P
592Arabidopsis thalianaMutation(s): 0 
Gene Names: COI1 (FBL2)
Find proteins for O04197 (Arabidopsis thaliana)
Go to UniProtKB:  O04197
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
JAZ1 degron peptide
Q, R, S, U, V, W, X
21Arabidopsis thalianaMutation(s): 0 
Gene Names: TIFY10A (JAZ1)
Find proteins for Q9LMA8 (Arabidopsis thaliana)
Go to UniProtKB:  Q9LMA8
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
B, D, F, H, J, L, N, P
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
OGK
Query on OGK

Download SDF File 
Download CCD File 
B, D, F, H, J, L, N, P
(1S,2S)-2-ethyl-1-({[(3aS,4S,6R,7aS)-6-ethyl-1-oxooctahydro-1H-inden-4-yl]carbonyl}amino)cyclopropanecarboxylic acid
Coronatine
C18 H27 N O4
YYTFHRRGIDEJIS-FNEQEMTHSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
OGKKd: 48 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.34 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.226 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 123.170α = 90.00
b = 220.758β = 104.45
c = 149.540γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data collection
PHENIXphasing
HKL-2000data scaling
HKL-2000data reduction
PHENIXmodel building
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-10-13
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance