Table 2 Main regulatory motifs in the PuPLDβ1 promoter

From: PuMYB21/PuMYB54 coordinate to activate PuPLDβ1 transcription during peel browning of cold-stored “Nanguo” pears

Factor or site name

Signal sequence

Probable function

ABRE

CACGTG; ACGTG; TACGTG; CACGTA

Abscisic acid-responsive element

as-1

TGACG

Transcription factor-binding site

CAAT-box

CCAAT

Common cis-acting element in the promoter and enhancer regions

ERE

ATTTTAAA

ERF (ethylene response factor) binding site

G-box

CACGTT

Involved in light responsiveness

MBS

CAACTG

MYB-binding site

TATA-box

TATA; TATAAA; TATAA

Core promoter element approximately −30 from the transcription start site

TCA-element

CCATCTTTTT

Salicylic acid-responsive element

TGACG-motif

TGACG

MeJA-responsive element

W-box

TTGACC

WRKY-binding site

WRE3

CCACCT

WRE transcription factor-binding site

WUN-motif

AAATTTCTT

WUN transcription factor-binding site