Atoh7 occupies a key node in the genetic hierarchy of RGC development (17), and was recently shown to be directly activated by Pax6 in the embryonic retina (21, 23).
Today, however, universities occupy a key position in innovation processes.
The European buildings occupy a key place among the major energy consumer sectors, with high savings potential.
Amphibians occupy a key phylogenetic position in vertebrates and evolution of the immune system.
Chondrichthyans occupy a key phylogenetic position serving as outgroup to osteichthyans (including teleosts and tetrapods).
Reptiles occupy a key position in vertebrate phylogeny by sharing the common ancestor to birds and mammals (Fig. 1).
This intriguing observation suggests that antisense RNA foci may occupy a key position in the cascade of disease pathogenesis.
AKT occupies a key regulatory node in the PI3K pathway, below which the pathway branches significantly to influence a wide range of cellular processes that promote cell cycle progression, cell growth, energy metabolism and resistance to apoptosis.
A key node in our chromosome segregation network analyses is occupied by the over-expressed BUB1 gene (Fig. 3A), which is part of a checkpoint that delays the onset of anaphase in cells with defects in mitotic spindle assembly, or in the attachment of chromosomes to the spindle microtubules.
The MFG is widely accepted as a key node in the A-network (blue arrow in Figure 3d).
