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DOI: 10.1055/s-0038-1651620
Single Step Purification of Platelet Factor XIII Using an Immobilized Factor XIII A-Subunit Monoclonal Antibody
Publication History
Received 04 August 1992
Accepted after revision 14 December 1992
Publication Date:
05 July 2018 (online)
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Summary
To facilitate the analysis of the catalytic subunit of factor XIII we have developed a method for the immunoaffinity purification of this protein from platelets. This method employs a monoclonal antibody that binds to the a-subunit of factor XIII. The anti-factor XIII antibody was immobilized on agarose and then incubated with platelet lysate. Subsequently factor XIII was isolated from the platelet lysate in a single step with a 41% yield as measured by enzyme assay. The purified platelet factor XIII appeared nearly homogeneous when analyzed by polyacrylamide electrophoresis and by immunoblotting with another factor XIII monoclonal antibody.