Plasminogen activator inhibitor 1 (PAI-1) in its active conformation: crystallization and preliminary X-ray diffraction data - Willems, PK; Rabijns, A; Aertgeerts, K; Vleugels, N; Knockaert, I; De Bondt, HL; De Ranter, CJ; Declerck, PJ (Acta Crystallogr D Biol Crystallogr, 1999)