GBF3 is one of the several G-box binding factors which are basic leucine zipper (bZIP) proteins (Schindler et al. 1992; Izawa et al. 1993).
One class of regulatory proteins is the ligand-binding transcription factor, which is often described as controlling gene expression in a strictly on−off manner.
Hypoxia-inducible factor (HIF1) was originally identified as a DNA-binding transcriptional factor which is present in nuclear extracts obtained from cells exposed to hypoxic conditions (Semenza and Wang 1992).
The gene target of the upregulated miR156k encodes the squamosa promoter-binding-like protein (SBP) transcription factor, which is known to be important for leaf growth and development [ 24].
These results are consistent with the idea that nuclear accumulation of Dcr1 is mediated by binding to a putative nuclear retention factor, which is likely to be mediated by this conserved surface.
Finally, a large proportion of miR-181b associated genes devoid of the corresponding miRNA recognition element, were enriched with binding motifs for the E2F1 transcription factor, which is encoded by a miR-181b target gene.
Different from Hd2/Ghd7.1/OsPRR37, OsDof12 is LD-specific flowering repressor and encodes a DNA-binding with one finger (Dof) transcription factor which is involved in a variety of biological processes of plants.
In barley, the Barley B Recombinant (BBR) protein was the first functionally characterized GAGA-motif binding transcription factor, which was shown to be an essential regulator of the homeobox gene Barley Knotted 3 (BKn3), the ortholog of the well known homeobox gene Knotted 1 (Kn1) from Zea mays [12], [13], [14], [15].
The 96 promoters of genes induced by overexpression of c-Myc which possess neither a putative c-Myc binding site nor a binding site of a transcription factor which was transcriptionally induced by c-Myc were analyzed using TRANSFAC® Professional rel.
Of the top 150 genes differentially expressed in the Smith et al. study, nearly 10%% were sequence-specific DNA-binding transcription factors, which is consistent with the central role of nuclear transcription factor responses in activated NK cells demonstrated in this study.
