Sun, Ziyong Mutagenesis at Pro309 of single-chain urokinase-type plasminogen activator alters its catalytic properties. [electronic resource] - Proteins Dec 2005 - 870-7 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1097-0134 Standard No.: 10.1002/prot.20686 doi Subjects--Topical Terms: Amino Acid SubstitutionBase SequenceBinding SitesCatalysisCatalytic DomainCloning, MolecularDNA PrimersDNA, Complementary--geneticsEnzyme ActivationKineticsMutagenesis, Site-DirectedPeptide Fragments--chemistryPlasminogen--chemistryProlineProtein Structure, SecondaryRecombinant Proteins--chemistryUrokinase-Type Plasminogen Activator--chemistry