Cytoplasmic dynein mediates spindle orientation from the cell cortex through interactions with astral microtubules, but neither the mechanism governing its cortical targeting nor the regulation thereof is well understood.
Clearly, CREB activation is implicated in addiction, but whether it directly contributes to the acute rewarding effects of drugs or initiates a homeostatic regulation thereof appears less clear.
Fig. 2A shows high expression of flag-tagged mutated eIF2B5 protein compared to endogenous eIF2B5 in DDR1 controls and down-regulation thereof in sh2B5 cells.
Overall, however, the lineage specificity of these putative cell populations and regulation thereof remains elusive (Rawlins, 2008).
Among these are compounds of industrial importance, and there is an interest in studying these metabolic pathways on the level of gene expression and regulation thereof.
Several hypotheses relating to mechanisms of nectar production and regulation thereof are proposed, and provide a starting point for reverse genetics approaches to determine molecular mechanisms underlying nectar synthesis and secretion.
Considering that actin-patch formation occurs before filopodia elongation, this argues for a 2-step process where Rac1-induced patch formation (and ArhGAP44-dependent regulation thereof) precedes Cdc42-induced filopodia elongation.
Whereas this suggests some degree of functional and evolutionary separation between catalytic activity (and regulation thereof) and peptide specificity, a separation of functions that is similar to those employed in other signaling systems (Goldman et al., 2014), our results also indicate that the activation segment provides a link between these biological functions.
This paper explores how arborists negotiate their work environment, including the pressures of policies, the labour market, technologies, government regulations and lack thereof, and the non-human agencies with which they are confronted.
Dinosaurian body temperature regulation, or lack thereof, has been a hotly debated topic among students of dinosaur biology.
