Structural similarity of the covalent complexes formed between the serpin plasminogen activator inhibitor-1 and the arginine-specific proteinases trypsin, LMW u-PA, HMW u-PA, and t-PA: Use of site-specific fluorescent probes of local environment - Backovic, M.; Stratikos,E.; Lawrence, D. A.; Gettins, P.G.W. (Protein Science, 2002)