2AYD

Crystal Structure of the C-terminal WRKY domainof AtWRKY1, an SA-induced and partially NPR1-dependent transcription factor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.179 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

DNA binding mechanism revealed by high resolution crystal structure of Arabidopsis thaliana WRKY1 protein.

Duan, M.R.Nan, J.Liang, Y.H.Mao, P.Lu, L.Li, L.Wei, C.Lai, L.Li, Y.Su, X.D.

(2007) Nucleic Acids Res. 35: 1145-1154

  • DOI: 10.1093/nar/gkm001

  • PubMed Abstract: 
  • WRKY proteins, defined by the conserved WRKYGQK sequence, are comprised of a large superfamily of transcription factors identified specifically from the plant kingdom. This superfamily plays important roles in plant disease resistance, abiotic stress ...

    WRKY proteins, defined by the conserved WRKYGQK sequence, are comprised of a large superfamily of transcription factors identified specifically from the plant kingdom. This superfamily plays important roles in plant disease resistance, abiotic stress, senescence as well as in some developmental processes. In this study, the Arabidopsis WRKY1 was shown to be involved in the salicylic acid signaling pathway and partially dependent on NPR1; a C-terminal domain of WRKY1, AtWRKY1-C, was constructed for structural studies. Previous investigations showed that DNA binding of the WRKY proteins was localized at the WRKY domains and these domains may define novel zinc-binding motifs. The crystal structure of the AtWRKY1-C determined at 1.6 A resolution has revealed that this domain is composed of a globular structure with five beta strands, forming an antiparallel beta-sheet. A novel zinc-binding site is situated at one end of the beta-sheet, between strands beta4 and beta5. Based on this high-resolution crystal structure and site-directed mutagenesis, we have defined and confirmed that the DNA-binding residues of AtWRKY1-C are located at beta2 and beta3 strands. These results provided us with structural information to understand the mechanism of transcriptional control and signal transduction events of the WRKY proteins.


    Organizational Affiliation

    The National Laboratory of Protein Engineering and Plant Genetic Engineering, Peking University, Beijing 100871, PR China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
WRKY transcription factor 1
A
76Arabidopsis thalianaMutation(s): 0 
Gene Names: WRKY1 (ZAP1)
Find proteins for Q9SI37 (Arabidopsis thaliana)
Go to UniProtKB:  Q9SI37
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
SIN
Query on SIN

Download SDF File 
Download CCD File 
A
SUCCINIC ACID
C4 H6 O4
KDYFGRWQOYBRFD-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.179 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 45.552α = 90.00
b = 45.552β = 90.00
c = 68.962γ = 120.00
Software Package:
Software NamePurpose
SHELXphasing
REFMACrefinement
DENZOdata reduction
MAR345data collection
OASISphasing
SCALEPACKdata scaling
DMphasing
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-10-31
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-11
    Type: Refinement description