2.7.8.43	inner membrane	phosphoethanolamine modification occurs on the periplasmic side of the inner membrane, where enzyme EptC transfers head groups from the phospholipid phosphoethanolamine to target molecules. EptC is predicted to be anchored to the inner membrane by a five-helix transmembrane domain, with its sulfatase-like catalytic domain positioned in the periplasm	-	-, 739786	
2.7.8.43	inner membrane	the enzyme is located on the periplasmic side of the inner membrane	-	740134	
2.7.8.43	membrane	LptA is an integral membrane protein	16020	-, 739495	
2.7.8.43	periplasm	-	-	-, 723212, 733017, 735157, 752031	
2.7.8.43	periplasm	LptA is the only component of the Lpt system that lacks a transmembrane component, as it spans the periplasmic space between the inner membrane and outer membrane complexes. LptA is bound to other Lpt components rather than floating freely in the periplasm	-	750867	
2.7.8.43	periplasm	possibly one or more LptA proteins bridges the periplasm to form a large, connected protein complex	-	752134