Plant Transcription Factor Database
Previous version: v3.0
Brassica napus
NF-YB Family
Species TF ID Description
GSBRNA2T00001940001NF-YB family protein
GSBRNA2T00005462001NF-YB family protein
GSBRNA2T00005464001NF-YB family protein
GSBRNA2T00008339001NF-YB family protein
GSBRNA2T00010034001NF-YB family protein
GSBRNA2T00015960001NF-YB family protein
GSBRNA2T00018200001NF-YB family protein
GSBRNA2T00025985001NF-YB family protein
GSBRNA2T00033462001NF-YB family protein
GSBRNA2T00033465001NF-YB family protein
GSBRNA2T00041612001NF-YB family protein
GSBRNA2T00044690001NF-YB family protein
GSBRNA2T00045935001NF-YB family protein
GSBRNA2T00047285001NF-YB family protein
GSBRNA2T00063695001NF-YB family protein
GSBRNA2T00066656001NF-YB family protein
GSBRNA2T00069871001NF-YB family protein
GSBRNA2T00069875001NF-YB family protein
GSBRNA2T00071657001NF-YB family protein
GSBRNA2T00072378001NF-YB family protein
GSBRNA2T00072381001NF-YB family protein
GSBRNA2T00076539001NF-YB family protein
GSBRNA2T00079089001NF-YB family protein
GSBRNA2T00080759001NF-YB family protein
GSBRNA2T00086075001NF-YB family protein
GSBRNA2T00094725001NF-YB family protein
GSBRNA2T00100529001NF-YB family protein
GSBRNA2T00109108001NF-YB family protein
GSBRNA2T00110047001NF-YB family protein
GSBRNA2T00112245001NF-YB family protein
GSBRNA2T00116872001NF-YB family protein
GSBRNA2T00118663001NF-YB family protein
GSBRNA2T00123828001NF-YB family protein
GSBRNA2T00124805001NF-YB family protein
GSBRNA2T00128824001NF-YB family protein
GSBRNA2T00128826001NF-YB family protein
GSBRNA2T00129475001NF-YB family protein
GSBRNA2T00132524001NF-YB family protein
GSBRNA2T00133043001NF-YB family protein
GSBRNA2T00135034001NF-YB family protein
GSBRNA2T00136053001NF-YB family protein
GSBRNA2T00137554001NF-YB family protein
GSBRNA2T00138879001NF-YB family protein
GSBRNA2T00146111001NF-YB family protein
GSBRNA2T00148306001NF-YB family protein
GSBRNA2T00149966001NF-YB family protein
GSBRNA2T00152863001NF-YB family protein
GSBRNA2T00155032001NF-YB family protein
NF-YB Family Introduction

NF-Y transcription factors are likely found in all eukaryotes and have roles in the regulation of diverse genes (McNabb et al., 1995; Edwards et al., 1998; Maity and de Crombrugghe, 1998; Mantovani, 1999). In mammals, where their biochemistry is well described, the NF-Y transcription factor complex is composed of three unique subunits: NF-YA, NF-YB, and NF-YC. Assembly of the NF-Y heterotrimer in mammals follows a strict, stepwise pattern (Sinha et al., 1995, 1996). Initially, a heterodimer is formed in the cytoplasm between the subunits NF-YB and NF-YC. This dimer then translocates to the nucleus, where the third subunit, NF-YA, is recruited to generate the mature, heterotrimeric NF-Y transcription factor (Frontini et al., 2004; Kahle et al., 2005). Mature NF-Y binds promoters with the core pentamer nucleotide sequence CCAAT, and this can result in either positive or negative transcriptional regulation(Peng and Jahroudi, 2002, 2003; Ceribelli et al., 2008).

As with NF-YA, NF-YB and NF-YC families have well-described subunit interaction and DNA-binding domains ( Kim et al., 1996; Sinha et al., 1996; McNabb et al., 1997; Romier et al., 2003). The conserved regions of NF-YB and NF-YC have structural and amino acid homology to histone fold motifs. Specifically, NF-YB is related to the histone fold motifs of H2B histones, while NF-YC subunits are related to H2A histones (Mantovani, 1999).

Siefers N, Dang KK, Kumimoto RW, Bynum WE 4th, Tayrose G, Holt BF 3rd.
Tissue-specific expression patterns of Arabidopsis NF-Y transcription factors suggest potential for extensive combinatorial complexity.
Plant Physiol, 2009. 149(2): p. 625-41.
PMID: 19019982