Nk×2.1 expression dictates the generation of both PV- and SST-expressing MGE progenitors, and maintenance of Nk×2.1 expression is activated by Sonic hedgehog (Shh) signaling [ 105].
These gene families are known to play important roles in the stress tolerance of plants through diverse physiological activities [ 42], and their expression is activated by drought stress in rice.
Interestingly, it was recently shown that in mouse ES cells, Dkk1 expression is activated by MesP1, suggesting that this transcription factor, expressed in pre-cardiac mesoderm, may promote cardiac differentiation by inhibiting Wnt/β-catenin signals [16].
Pak1 expression is activated in mammary glands in a development-dependent manner, with the highest activity during pregnancy and lactation [ 23].
It appears, therefore, that activation of the PI3K signaling pathways exerts opposite effects on NIS: expression is activated while NIS localization in the plasma membrane is inhibited.
These data suggest that OsAP77 expression is activated upon CMV infection.
EBV lytic gene expression is activated by 12-O-tetradecanoylphorbol-13-acetate 12-O-tetradecanoylphorbol-13-acetate 12-O-tetradecanoylphorbol-13-acetate 12-O-tetradecanoylphorbol-13-acetate 12-O-tetradecanoylphorbol-13-acetate
However, methylation of the paternal ICR1 abrogates CTCF binding and IGF2 expression is activated [8], [9].
During this period, liver IGF-1 gene expression is activated and rises to adult levels [11].
Generally, when histones are acetylated, chromatin becomes loosely packed euchromatin and gene expression is activated.
In the presence of light, FT expression is activated by CONSTANS COO), another component in the photoperiod pathway [31].
