Migration of defensin/¹²⁵I-Lp(a) complexes on native gels. Unoxidized and oxidized ¹²⁵I-Lp(a) (20 nmol/L) was incubated with defensin (HNP-1; 10 μmol/L) or buffer for 1 hour at 37°C, and the migration of the labeled lipoproteins towards the positive electrode on 0.5% agarose gels was analyzed using autoradiography. Lane 1, native Lp(a); lane 2, Lp(a)/defensin; lane 3, oxidized Lp(a); lane 4, oxidized Lp(a)/defensin.