ON GROUP SPECIFIC A SUBSTANCES : III. THE SUBSTANCE IN COMMERCIAL PEPSIN.
A method of preparation and a preliminary chemical investigation of the substance present in commercial (pig) pepsin which reacts with human A antiserum are presented. The material offers especial advantage in securing in quantity a serologically highly active preparation suitable for further studies. Active preparations were isolated moreover from commercial (pig) gastric mucin. Some other materials showing group specific reactions are mentioned.
Laboratories of The Rockefeller Institute for Medical Research.
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K
Landsteiner
M W
MW
Chase