PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Citrus clementina
DBB Family
Species TF ID Description
Ciclev10001914mDBB family protein
Ciclev10016081mDBB family protein
Ciclev10016208mDBB family protein
Ciclev10016333mDBB family protein
Ciclev10016655mDBB family protein
Ciclev10021488mDBB family protein
Ciclev10021833mDBB family protein
Ciclev10021980mDBB family protein
Ciclev10022234mDBB family protein
Ciclev10024319mDBB family protein
Ciclev10026472mDBB family protein
Ciclev10026520mDBB family protein
Ciclev10026521mDBB family protein
Ciclev10029284mDBB family protein
Ciclev10029294mDBB family protein
Ciclev10029355mDBB 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