PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Citrus clementina
WRKY Family
Species TF ID Description
Ciclev10000654mWRKY family protein
Ciclev10001636mWRKY family protein
Ciclev10005095mWRKY family protein
Ciclev10005165mWRKY family protein
Ciclev10005203mWRKY family protein
Ciclev10006728mWRKY family protein
Ciclev10007882mWRKY family protein
Ciclev10007904mWRKY family protein
Ciclev10007917mWRKY family protein
Ciclev10008110mWRKY family protein
Ciclev10008135mWRKY family protein
Ciclev10008138mWRKY family protein
Ciclev10008493mWRKY family protein
Ciclev10008836mWRKY family protein
Ciclev10008930mWRKY family protein
Ciclev10009120mWRKY family protein
Ciclev10009250mWRKY family protein
Ciclev10009761mWRKY family protein
Ciclev10009937mWRKY family protein
Ciclev10011386mWRKY family protein
Ciclev10011501mWRKY family protein
Ciclev10011660mWRKY family protein
Ciclev10012055mWRKY family protein
Ciclev10013616mWRKY family protein
Ciclev10013781mWRKY family protein
Ciclev10014642mWRKY family protein
Ciclev10014665mWRKY family protein
Ciclev10014984mWRKY family protein
Ciclev10015049mWRKY family protein
Ciclev10016229mWRKY family protein
Ciclev10017173mWRKY family protein
Ciclev10017214mWRKY family protein
Ciclev10017217mWRKY family protein
Ciclev10017218mWRKY family protein
Ciclev10017222mWRKY family protein
Ciclev10017531mWRKY family protein
Ciclev10018230mWRKY family protein
Ciclev10019383mWRKY family protein
Ciclev10019820mWRKY family protein
Ciclev10020744mWRKY family protein
Ciclev10020867mWRKY family protein
Ciclev10020943mWRKY family protein
Ciclev10021038mWRKY family protein
Ciclev10021174mWRKY family protein
Ciclev10021624mWRKY family protein
Ciclev10021738mWRKY family protein
Ciclev10021873mWRKY family protein
Ciclev10022199mWRKY family protein
Ciclev10023956mWRKY family protein
Ciclev10024061mWRKY family protein
Ciclev10024257mWRKY family protein
Ciclev10025925mWRKY family protein
Ciclev10026105mWRKY family protein
Ciclev10026395mWRKY family protein
Ciclev10026733mWRKY family protein
Ciclev10028715mWRKY family protein
Ciclev10030455mWRKY family protein
Ciclev10031162mWRKY family protein
Ciclev10031225mWRKY family protein
Ciclev10031525mWRKY family protein
Ciclev10032012mWRKY family protein
Ciclev10032192mWRKY family protein
Ciclev10032283mWRKY family protein
Ciclev10032284mWRKY family protein
Ciclev10032285mWRKY family protein
Ciclev10032287mWRKY family protein
Ciclev10032816mWRKY family protein
Ciclev10032943mWRKY family protein
Ciclev10033384mWRKY family protein
WRKY Family Introduction

WRKY transcription factors are one of the largest families of transcriptional regulators in plants and form integral parts of signalling webs that modulate many plant processes. Here, we review recent significant progress in WRKY transcription factor research. New findings illustrate that WRKY proteins often act as repressors as well as activators, and that members of the family play roles in both the repression and de-repression of important plant processes. Furthermore, it is becoming clear that a single WRKY transcription factor might be involved in regulating several seemingly disparate processes. Mechanisms of signalling and transcriptional regulation are being dissected, uncovering WRKY protein functions via interactions with a diverse array of protein partners, including MAP kinases, MAP kinase kinases, 14-3-3 proteins, calmodulin, histone deacetylases, resistance proteins and other WRKY transcription factors. WRKY genes exhibit extensive autoregulation and cross-regulation that facilitates transcriptional reprogramming in a dynamic web with built-in redundancy.

The defining feature of WRKY transcription factors is their DNA binding domain. This is called the WRKY domain after the almost invariant WRKY amino acid sequence at the N-terminus. In a few WRKY proteins, the WRKY amino acid sequences have been replaced by WRRY, WSKY, WKRY, WVKY or WKKY. The WRKY domain is about 60 residues in length, and as well as containing the WRKY signature it also has an atypical zinc-finger structure at the C-terminus. The zinc-finger structure is either Cx4-5Cx22-23HxH or Cx7Cx23HxC. Initially, in the absence of a complete gene family from any plant species, the WRKY transcription factors were divided into three groups based on the number of WRKY domains (two domains in Group I proteins and one in the others) and the structure of their zinc fingers (C2HC in Group III proteins).

Rushton PJ, Somssich IE, Ringler P, Shen QJ.
WRKY transcription factors.
Trends Plant Sci, 2010. 15(5): p. 247-58.
PMID: 20304701