GrassTFDB :: Browse Family::Rice

Displaying BZR Family from Rice


Brassinosteroid (BR) homeostasis and signaling are crucial for normal growth and development of plants. BR signaling through cell-surface receptor kinases and intracellular components leads to dephosphorylation and accumulation of the nuclear protein BZR1. How BR signaling regulates gene expression, however, remains unknown. Here we show that BZR1 is a transcriptional repressor that has a previously unknown DNA binding domain and binds directly to the promoters of feedback-regulated BR biosynthetic genes. Microarray analyses identified additional potential targets of BZR1 and illustrated, together with physiological studies, that BZR1 coordinates BR homeostasis and signaling by playing dual roles in regulating BR biosynthesis and downstream growth responses.

Protein Name
accepted / suggested
Gene Locus Synonym/
Gene Name
Clone in TFome Genome Browser
OsBZR1 LOC_Os01g08180 View in Browser
OsBZR2 LOC_Os01g10610 View in Browser
OsBZR3 LOC_Os02g03690 View in Browser
OsBZR4 LOC_Os02g13900 View in Browser
OsBZR5 LOC_Os06g35900 View in Browser
OsBZR6 LOC_Os07g39220 View in Browser