info:eu-repo/semantics/article
The BBX family of plant transcription factors
Fecha
2014-08Registro en:
Gangappa, Sreeramaiah N.; Botto, Javier Francisco; The BBX family of plant transcription factors; Elsevier Science London; Trends In Plant Science; 19; 7; 8-2014; 460-470
1360-1385
Autor
Gangappa, Sreeramaiah N.
Botto, Javier Francisco
Resumen
The B-box (BBX) proteins are a class of zinc-finger transcription factors containing a B-box domain with one or two B-box motifs, and sometimes also feature a CCT (CONSTANS, CO-like, and TOC1) domain. BBX proteins are key factors in regulatory networks controlling growth and developmental processes that include seedling photomorphogenesis, photoperiodic regulation of flowering, shade avoidance, and responses to biotic and abiotic stresses. In this review we discuss the functions of BBX proteins and the role of B-box motif in mediating transcriptional regulation and protein-protein interaction in plant signaling. In addition, we provide novel insights into the molecular mechanisms of their action and the evolutionary significance of their functional divergence.