Definition: A proteolytic enzyme that converts PLASMINOGEN to FIBRINOLYSIN where the preferential cleavage is between ARGININE and VALINE. It was isolated originally from human URINE, but is found in most tissues of most VERTEBRATES.
Other names Urokinase; Urinary Plasminogen Activator; U-Plasminogen Activator; Plasminogen Activator, Urokinase-Type; Urokinase Type Plasminogen Activator; U Plasminogen Activator; Single Chain Urokinase Type Plasminogen Activator; Single-Chain Urokinase-Type Plasminogen Activator; Renokinase; Kidney Plasminogen Activator; Abbokinase; U-PA