PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Nicotiana tabacum
DBB Family
Species TF ID Description
XP_016446351.1DBB family protein
XP_016458633.1DBB family protein
XP_016460367.1DBB family protein
XP_016463196.1DBB family protein
XP_016471039.1DBB family protein
XP_016475810.1DBB family protein
XP_016476044.1DBB family protein
XP_016478580.1DBB family protein
XP_016483077.1DBB family protein
XP_016484521.1DBB family protein
XP_016486840.1DBB family protein
XP_016495982.1DBB family protein
XP_016498733.1DBB family protein
XP_016499436.1DBB family protein
XP_016500562.1DBB family protein
XP_016500563.1DBB family protein
XP_016507921.1DBB family protein
XP_016511606.1DBB family protein
XP_016512410.1DBB family protein
XP_016514113.1DBB 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