... the catalytic site in the N-terminal domain of one subunit and the substrate recognition site in the C-terminal domain of the other face each other, thereby bringing together the substrate-binding ... (Arg405, Lys407,Lys413, Lys414, Lys422, Lys428, and Lys430) oriented in the same direction with the heparin-binding domain at the N-terminal end [14]. The other is a cluster of tryptophans(Trp390, ... HSPG binding at the cell surface is required for maintaining LPL stability.LPL’s C-terminal domain also appears to be involved in the binding of the enzyme to receptors such as the LDLreceptor...