[Affinity chromatographic purification of streptokinase with monoclonal antibodies]

Monoclonal antibodies against streptokinase as ligands were coupled to different matrices. Both CNBr-activated Sepharose and macroporous bead cellulose activated by carbonochloridate revealed as suitable for purification of streptokinase by affinity chromatography. Immunoadsorbents with a higher concentration of the coupled ligand were more effective than those with a lower. For streptokinase optimal conditions of binding and elution without negative influence on structure and activity were ascertained. A buffer with slight alkaline pH was successful for desorption. Using this method it was possible to obtain pure streptokinase from several streptokinase containing media.