PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Actinidia chinensis
WRKY Family
Species TF ID Description
Achn000371WRKY family protein
Achn005621WRKY family protein
Achn005631WRKY family protein
Achn010691WRKY family protein
Achn010701WRKY family protein
Achn011281WRKY family protein
Achn011781WRKY family protein
Achn013921WRKY family protein
Achn014021WRKY family protein
Achn015341WRKY family protein
Achn017781WRKY family protein
Achn022171WRKY family protein
Achn026311WRKY family protein
Achn028681WRKY family protein
Achn037901WRKY family protein
Achn040601WRKY family protein
Achn053001WRKY family protein
Achn057931WRKY family protein
Achn059561WRKY family protein
Achn062591WRKY family protein
Achn062881WRKY family protein
Achn063361WRKY family protein
Achn064651WRKY family protein
Achn064731WRKY family protein
Achn066811WRKY family protein
Achn068771WRKY family protein
Achn071331WRKY family protein
Achn075461WRKY family protein
Achn079441WRKY family protein
Achn103451WRKY family protein
Achn103931WRKY family protein
Achn106181WRKY family protein
Achn109071WRKY family protein
Achn109391WRKY family protein
Achn114471WRKY family protein
Achn125121WRKY family protein
Achn132821WRKY family protein
Achn132831WRKY family protein
Achn132991WRKY family protein
Achn134501WRKY family protein
Achn140751WRKY family protein
Achn143171WRKY family protein
Achn144931WRKY family protein
Achn147941WRKY family protein
Achn148371WRKY family protein
Achn150821WRKY family protein
Achn152191WRKY family protein
Achn155261WRKY family protein
Achn159361WRKY family protein
Achn165131WRKY family protein
Achn175001WRKY family protein
Achn182561WRKY family protein
Achn182751WRKY family protein
Achn184451WRKY family protein
Achn188191WRKY family protein
Achn191331WRKY family protein
Achn196241WRKY family protein
Achn214251WRKY family protein
Achn217531WRKY family protein
Achn229111WRKY family protein
Achn229421WRKY family protein
Achn229941WRKY family protein
Achn230981WRKY family protein
Achn234481WRKY family protein
Achn235341WRKY family protein
Achn236811WRKY family protein
Achn244531WRKY family protein
Achn244541WRKY family protein
Achn245731WRKY family protein
Achn251051WRKY family protein
Achn258601WRKY family protein
Achn263441WRKY family protein
Achn271431WRKY family protein
Achn275661WRKY family protein
Achn278571WRKY family protein
Achn280261WRKY family protein
Achn282451WRKY family protein
Achn287671WRKY family protein
Achn287861WRKY family protein
Achn289221WRKY family protein
Achn293061WRKY family protein
Achn293071WRKY family protein
Achn299611WRKY family protein
Achn300421WRKY family protein
Achn306131WRKY family protein
Achn309921WRKY family protein
Achn314301WRKY family protein
Achn316621WRKY family protein
Achn320511WRKY family protein
Achn329191WRKY family protein
Achn336561WRKY family protein
Achn350681WRKY family protein
Achn351801WRKY family protein
Achn353281WRKY family protein
Achn353831WRKY family protein
Achn355811WRKY family protein
Achn359541WRKY family protein
Achn360351WRKY family protein
Achn365871WRKY family protein
Achn369221WRKY family protein
Achn369231WRKY family protein
Achn370671WRKY family protein
Achn374841WRKY family protein
Achn377931WRKY family protein
Achn386581WRKY family protein
Achn390831WRKY 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