LpxT is an inner membrane protein that transfers a phosphate group from the essential lipid undecaprenyl pyrophosphate (C-55PP) to the lipid A moiety of lipopolysaccharide. generating a lipid A tris-phosphorylated species. The protein is encoded by the non-essential lpxT gene. which is conserved in distantly related Gram-negative bacteria. https://www.roneverhart.com/Diablo-DSP-7LP-Low-Power-Vehicle-Loop-Detector/