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).
The thyroid gland is important in regulating metabolism. It produces 2 important metabolic hormones, thyroxine (T4) and triiodothyronine (T3). T4 contains 4 iodine atoms, whilst T3 contains 3 iodine atoms. T3 and T4 both affect the bodyâs metabolism by influencing protein production of every cell in the body.