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.
Landsteiner
K
K
Laboratories of The Rockefeller Institute for Medical Research.
Chase
M W
MW