Plant Transcription Factor Database
Previous version: v3.0
Brassica rapa
DBB Family
Species TF ID Description
XP_009101911.1DBB family protein
XP_009104568.1DBB family protein
XP_009104701.1DBB family protein
XP_009106205.1DBB family protein
XP_009106574.1DBB family protein
XP_009109505.1DBB family protein
XP_009109512.1DBB family protein
XP_009111009.1DBB family protein
XP_009111010.1DBB family protein
XP_009113601.1DBB family protein
XP_009117418.1DBB family protein
XP_009118559.1DBB family protein
XP_009118560.1DBB family protein
XP_009119098.1DBB family protein
XP_009119099.1DBB family protein
XP_009128303.1DBB family protein
XP_009128574.1DBB family protein
XP_009141168.1DBB family protein
XP_009141169.1DBB family protein
XP_009144210.1DBB family protein
XP_009148051.1DBB family protein
DBB Family Introduction

In this study, a small subfamily of double B-box zinc finger (DBB, DOUBLE B-BOX) genes, encoding eight putative transcription factors, were characterized with reference to the circadian rhythm and the early photomorphogenic regulation of hypocotyl elongation in response to light signals. Among these, it was found that the transcriptions of five DBB genes were under the control of circadian rhythm. To gain insight into the physiological roles of these putative transcription factors, forward and reverse genetic studies were carried out. The results suggested that they are commonly implicated in light signal transduction during early photomorphogenesis, however, their functions are not totally redundant, as judged by the fact that their circadian-expression profiles (or phases) were distinctive from each other, and by the fact that some DBBs (named DBB1a, DBB1b, STO, and STH) were apparently implicated in light signal transduction in a negative manner, whereas another (named DBB3) was implicated in a positive manner with regard to light-induced inhibition of elongation of hypocotyls.

Kumagai T, Ito S, Nakamichi N, Niwa Y, Murakami M, Yamashino T, Mizuno T.
The common function of a novel subfamily of B-Box zinc finger proteins with reference to circadian-associated events in Arabidopsis thaliana.
Biosci Biotechnol Biochem, 2008. 72(6): p. 1539-49.
PMID: 18540109