We examined the expression of the protein Hunchback (Hb) [40] [42], which is one of the first zygotic proteins expressed upstream of Eve in the segmentation pathway and serves an early marker of embryonic segmentation [43].
Using a luciferase reporter assay in SH-SY5Y cells, four and three of these miRNAs significantly decreased luciferase activity expressed upstream of the lamp-2a and hsc70 3′UTR sequences respectively.
USF is a ubiquitously expressed upstream stimulating factor and a member of the basic-Helix-Loop-Helix-Leucine Zipper transcription factor family with high affinity for cognate E-box regulatory elements.
The most obvious interpretation of the present results would be that Meis is expressed upstream of Prod 1 and that, as proposed for limb development, it is a major determinant of PD identity.
For a gene that is expressed, the upstream sequence would position the nucleosome.
In previous studies, the ubiquitously expressed cellular upstream stimulatory factor 1 (USF-1) and the hepatocyte nuclear factor 1α (HNF-1α) have been reported to exhibit promoter activity for CD26 expression through binding to their consensus motifs in the CD26 promoter region in Caco-2 cells [ 16, 17].
fj constructs were expressed under upstream activating sequence (UAS) control [ 23] in transgenic flies, under the copper-inducible metallothionein promoter in the vector pMK33B for tissue culture experiments, and in the pENTR vector for the coimmunoprecipitation experiments in which they were additionally Myc tagged.
In contrast, when the GPxI of a GA-sequence displayed a predominantly black stretch, the upstream stripes were strongly expressed in its upstream flank (Fig. 4b).
These sequences, however, may cause undesirable effects such as the production of antibodies against bacterial proteins expressed from cryptic upstream eukaryotic expression signals, changes in eukaryotic gene expression caused by antibiotic resistance markers, and immune responses to CpG sequences [22].
We applied a simplified hierarchy of controls to express a gradient of upstream (materials correspond with source of the hazard) versus midstream (process corresponds with path between source and worker) versus downstream (human interface corresponds with the level of the worker as the receiver of exposure) preventive efforts.
