W-box
Encyclopedia
W-box refers to a group of plant genes which are beginning with the sequence TTGACC or TTGACT. When the plant becomes stressed by cold, insects, etc it produces the transcription factor
Transcription factor
In molecular biology and genetics, a transcription factor is a protein that binds to specific DNA sequences, thereby controlling the flow of genetic information from DNA to mRNA...

WRKY which binds to said sequences, thus triggering the transcription of the genes.
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