Human beta 2-glycoprotein I binds to endothelial cells through a cluster of lysine residues that are critical for anionic phospholipid binding and offers epitopes for anti-beta 2-glycoprotein I antibodies - Del Papa, N; Sheng, YH; Raschi, E; Kandiah, DA; Tincani, A; Khamashta, MA; Atsumi, T; Hughes, GRV; Ichikawa, K; Koike, T; Balestrieri, G; Krilis, SA; Meroni, PL (J Immunol, 1998)