PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Catharanthus roseus
DBB Family
Species TF ID Description
cra_locus_3882_iso_4DBB family protein
cra_locus_3882_iso_7DBB family protein
cra_locus_405_iso_10DBB family protein
cra_locus_405_iso_1DBB family protein
cra_locus_405_iso_2DBB family protein
cra_locus_405_iso_3DBB family protein
cra_locus_405_iso_6DBB family protein
cra_locus_56185_iso_1DBB family protein
cra_locus_56185_iso_2DBB family protein
cra_locus_6684_iso_5DBB family protein
cra_locus_6793_iso_10DBB family protein
cra_locus_6793_iso_3DBB family protein
cra_locus_6793_iso_9DBB family protein
cra_locus_7378_iso_3DBB family protein
cra_locus_8265_iso_2DBB family protein
cra_locus_8265_iso_3DBB family protein
cra_locus_8265_iso_4DBB family protein
cra_locus_8265_iso_6DBB 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