Plant Transcription Factor Database
Previous version: v3.0
Lotus japonicus
DBB Family
Species TF ID Description
Lj0g3v0045529.1DBB family protein
Lj0g3v0110939.1DBB family protein
Lj0g3v0112069.1DBB family protein
Lj0g3v0139469.1DBB family protein
Lj0g3v0311479.1DBB family protein
Lj1g3v3370960.1DBB family protein
Lj1g3v3370960.2DBB family protein
Lj2g3v1717640.1DBB family protein
Lj2g3v1717640.2DBB family protein
Lj3g3v0381570.1DBB family protein
Lj4g3v2046130.1DBB family protein
Lj5g3v0165540.1DBB family protein
Lj5g3v0473580.1DBB 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