3T4T

Arabidopsis histidine kinase 4 sensor domain in complex with thiadiazuron


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.208 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.183 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis for cytokinin recognition by Arabidopsis thaliana histidine kinase 4.

Hothorn, M.Dabi, T.Chory, J.

(2011) Nat Chem Biol 7: 766-768

  • DOI: 10.1038/nchembio.667
  • Primary Citation of Related Structures:  
    3T4K, 3T4L, 3T4O, 3T4Q, 3T4J, 3T4S, 3T4T

  • PubMed Abstract: 
  • Cytokinins are classic hormones that orchestrate plant growth and development and the integrity of stem cell populations. Cytokinin receptors are eukaryotic sensor histidine kinases that are activated by both naturally occurring adenine-type cytokinins and urea-based synthetic compounds ...

    Cytokinins are classic hormones that orchestrate plant growth and development and the integrity of stem cell populations. Cytokinin receptors are eukaryotic sensor histidine kinases that are activated by both naturally occurring adenine-type cytokinins and urea-based synthetic compounds. Crystal structures of the Arabidopsis thaliana histidine kinase 4 sensor domain in complex with different cytokinin ligands now rationalize the hormone-binding specificity of the receptor and may spur the design of new cytokinin ligands.


    Organizational Affiliation

    Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, California, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Histidine kinase 4AB270Arabidopsis thalianaMutation(s): 0 
Gene Names: AHK4At2g01830CRE1RAW1T23K3.2WOL
EC: 2.7.13.3 (PDB Primary Data), 3.1.3.16 (PDB Primary Data)
Find proteins for Q9C5U0 (Arabidopsis thaliana)
Explore Q9C5U0 
Go to UniProtKB:  Q9C5U0
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
WA1
Query on WA1

Download CCD File 
A, B
1-phenyl-3-(1,2,3-thiadiazol-5-yl)urea
C9 H8 N4 O S
HFCYZXMHUIHAQI-UHFFFAOYSA-N
 Ligand Interaction
MLI
Query on MLI

Download CCD File 
B
MALONATE ION
C3 H2 O4
OFOBLEOULBTSOW-UHFFFAOYSA-L
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
WA1EC50:  1000   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.208 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.183 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 60.09α = 90
b = 60.09β = 90
c = 297.58γ = 120
Software Package:
Software NamePurpose
ADSCdata collection
PHASERphasing
REFMACrefinement
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2011-07-26 
  • Released Date: 2011-10-05 
  • Deposition Author(s): Hothorn, M.

Revision History 

  • Version 1.0: 2011-10-05
    Type: Initial release
  • Version 1.1: 2011-12-14
    Changes: Database references
  • Version 1.2: 2012-07-25
    Changes: Other