A unique inteihelical insertion in plasminogen activator inhibitor-2 contains three glutamines, Gln83 Gln84 Gln86essential for transglutaminase-mediated cross-linking - Jensen, P H; Schuler, E; Woodrow, G; Richardson, M; Goss, N; Hojrap, P; Petersen, T E; Rasmussen, L K (J Biol Chem, 1994)