Strikingly, knock-down of the centrally upregulated Notch targets sd or vg was able to restore expression of dm/myc and th/DIAP1 throughout the Nicd expressing territory, suggesting that Sd and Vg are part of a feed-forward repression mechanism that inhibits upregulation of other targets in the central domain.
Behind the talk of the victory of the proletariat and great leaps forward lay repression, famines and the terrorising of a nation.He had not set out to write about politics, although he was himself a socialist, of the democratic, anti-totalitarian sort (George Orwell was a guiding light).
"In comparison with the 2006 elections, these elections are going forward practically without repression," said Aleksandr Milinkevich, whose experience as a candidate in the last presidential elections was far more punishing.
It could be because we as a species honestly believe that the future looks bleak, that the only thing any of us has to look forward to is repression and robotic cops and obsolete computers and Siouxsie and the Banshees-era haberdashery.
In the presence of erythromycin, ET1 originating from basal PETR activity is inactivated, which interrupts the auto-regulated feed-forward transcription and results in repression of EYFP production.
ANG1-dependent Phd2 repression initiated a feed-forward loop mediated by the induction of the ANG receptor TIE2 in macrophages.
Furthermore, yjiA is downregulated by the noncoding RNA molecule Spot 42 that participates in a feed-forward loop to help enact catabolite repression in E. coli.
On the contrary, such repression undercuts the possibility of forward movement.
To read through the seismographic record of the gay movement, with its sudden waves of repression and its equally abrupt forward leaps, is to confront the unpredictable dynamics of bigotry.
One hypothesis put forward was that phosphorylated PhoP represses transcription of afsS and inhibits actinorhodin synthesis until a time when, perhaps, a more severe form of phosphate starvation or another independent mechanism sets in to relieve this repression [ 21].
Examples of local structures are: auto-regulation loop (ARL, either catalytic or repression), feedback loop (FBL), feed-forward loop (FFL, either coherent or incoherent), bi-fan and single-input motif (SIM) [ 4- 6].
