Normal Function. The FLT3 gene provides instructions for making a protein called fms-like tyrosine kinase 3 (FLT3), which is part of a family of proteins called receptor tyrosine kinases (RTKs). Receptor tyrosine kinases transmit signals from the cell surface into the cell through a process called signal transduction. The FLT3 protein is found in the outer membrane of certain cell types where a specific protein called FLT3 ligand, or FL, can attach (bind) to it.
Guardsman is a rank used instead of Private in some military units that serve as the official bodyguard of a sovereign or head of state. It is also used as a generic term for any member of a Guards unit of any rank. The British Army's Foot Guards Regiments have used the rank since 1920, when it was adopted instead of Private.
The International Building Code (IBC) definition of a Guard (also typically referred to as a guardrail) is a building component or a system of building components located at or near the open sides of elevated walking surfaces that minimizes the possibility of a fall from the walking surface to a lower level..