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).
1 A measure of this protein helps your doctor find out how much of your body's stored iron has been used. 2  Transferrin level, or total iron-binding capacity. 3  Transferrin is a protein that carries iron in your blood. 4  Total iron-binding capacity measures how much of the transferrin in your blood isn't carrying iron.