PlantTFDB
Plant Transcription Factor Database
v4.0
Previous version: v1.0, v2.0, v3.0
Kalanchoe marnieriana
NF-YB Family
Species TF ID Description
Kalax.0007s0059.1.pNF-YB family protein
Kalax.0007s0059.2.pNF-YB family protein
Kalax.0009s0245.1.pNF-YB family protein
Kalax.0012s0082.1.pNF-YB family protein
Kalax.0018s0075.1.pNF-YB family protein
Kalax.0026s0132.1.pNF-YB family protein
Kalax.0033s0151.1.pNF-YB family protein
Kalax.0042s0024.1.pNF-YB family protein
Kalax.0046s0094.1.pNF-YB family protein
Kalax.0060s0047.1.pNF-YB family protein
Kalax.0060s0051.1.pNF-YB family protein
Kalax.0062s0064.1.pNF-YB family protein
Kalax.0077s0067.1.pNF-YB family protein
Kalax.0077s0067.2.pNF-YB family protein
Kalax.0081s0101.1.pNF-YB family protein
Kalax.0095s0022.1.pNF-YB family protein
Kalax.0102s0032.1.pNF-YB family protein
Kalax.0102s0032.2.pNF-YB family protein
Kalax.0106s0064.1.pNF-YB family protein
Kalax.0106s0064.2.pNF-YB family protein
Kalax.0106s0064.3.pNF-YB family protein
Kalax.0111s0080.1.pNF-YB family protein
Kalax.0130s0086.1.pNF-YB family protein
Kalax.0130s0087.1.pNF-YB family protein
Kalax.0183s0031.1.pNF-YB family protein
Kalax.0210s0016.1.pNF-YB family protein
Kalax.0229s0054.1.pNF-YB family protein
Kalax.0254s0016.1.pNF-YB family protein
Kalax.0329s0055.1.pNF-YB family protein
Kalax.0329s0055.2.pNF-YB family protein
Kalax.0348s0014.1.pNF-YB family protein
Kalax.0351s0020.1.pNF-YB family protein
Kalax.0351s0022.1.pNF-YB family protein
Kalax.0379s0024.1.pNF-YB family protein
Kalax.0395s0004.1.pNF-YB family protein
Kalax.0484s0009.1.pNF-YB family protein
Kalax.0485s0040.1.pNF-YB family protein
Kalax.0485s0042.1.pNF-YB family protein
Kalax.0637s0007.1.pNF-YB family protein
Kalax.0637s0007.2.pNF-YB family protein
Kalax.0637s0007.3.pNF-YB family protein
Kalax.0637s0007.4.pNF-YB family protein
Kalax.0638s0010.1.pNF-YB family protein
Kalax.0643s0026.1.pNF-YB family protein
Kalax.0643s0030.1.pNF-YB family protein
Kalax.0738s0018.1.pNF-YB family protein
Kalax.0738s0018.2.pNF-YB family protein
Kalax.0738s0018.3.pNF-YB family protein
Kalax.0754s0018.1.pNF-YB family protein
Kalax.0895s0003.1.pNF-YB family protein
Kalax.1004s0001.1.pNF-YB family protein
Kalax.1014s0002.1.pNF-YB family protein
Kalax.1055s0009.1.pNF-YB family protein
Kalax.1191s0008.1.pNF-YB family protein
Kalax.1373s0003.1.pNF-YB family protein
Kalax.1633s0003.1.pNF-YB family protein
Kalax.1633s0003.2.pNF-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