These 'activity modulation sites' apparently comprise the principal evolved mechanisms for control of enzyme activity in the catalytic domain.
An engineering control approach is introduced to model the movement of attention, based on experimental data indicating separate sites for attention modulation and for the creation of that modulation: and using the analogy with motor control in the brain, to which an engineering approach has already been applied by others.
Despite the relatively weak selectivity of individual sites for these comparisons, modulation of firing rates due to the primary (R) cue predicted the modulation induced by the secondary (P vs N) cue.
The current structural model of the GABAA receptor is a pentameric receptor with binding sites for the GABA ligand and for receptor modulation by benzodiazepines, neurosteroids, ethanol, and barbiturates [14].
Analyses revealed the identification of several potential binding sites for either stabilizing (HuR) or destabilizing (CuGBP1, KSRP) RNA-binding proteins, suggesting possible modulation of Tfam mRNA stability via these proteins, which are highly expressed in muscle.
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The biphasic modulation of Wnt signaling that we observed has also been described for sFRP-1 and is thought to be caused by two separate binding sites for Wnt with different affinities [ 27].
In our study, the GluR2 Q/R site, the most important editing site for modulation of AMPA receptor channel properties, remained fully edited after KA injection in both the brain areas analyzed, indicating that modifications in calcium permeability of AMPA receptors were not involved in KA action.
In addition to occupational modulation, F sites also exhibit positional modulation.
Systemic SR142948A administration prevented c-fos mRNA induction in mesolimbic terminal fields (prefrontal cortex, lateral septum, NAcc, ventral subiculum) induced by all three psychostimulants implicating the VTA as the site for NT modulation of stimulant-induced PPI disruption.
