This information is used to determine the density of the air entering the combustion chamber (in conjunction with the IAT (Intake Air temperature) sensor), which is used when calculating the proper air/fuel mixture for the engine, especially at WOT since the system is not in closed-loop at this time.
The TTR gene provides instructions for producing a protein called transthyretin. This protein transports vitamin A (retinol) and a hormone called thyroxine throughout the body. To transport thyroxine, four transthyretin proteins must be attached (bound) to each other to form a four-protein unit (tetramer).
Transduction of viral-based shRNA allows access to cells, such as primary and neuronal cells, that are difficult to transfect by traditional cationic lipid-based strategies. Viral-based shRNAs have also been used to evaluate gene function at whole genome scales using pools of silencing constructs.