Lyophilized. Monoclonal. IgG₁; positive reaction with Glu- and Lys-Plasminogen as well as with Plasmin-Alpha-2-Antiplasmin complexes. Directed against an epitope on the kringle 1-3 elastase fragment of plasminogen. Half maximal binding to coated Glu-Plasminogen at 19 ng/mL.