SALMONELLA ANTIGENS 



113 



TABLE 8-6 



Cross-Reactions of Horse Serums for 5. schottmuelleri and S. typhosa 

 with Certain Polysaccharides" 



* Staub et al., 1959. Numbers indicate micrograms of precipitate nitrogen. 

 ^ Polysaccharide from S. typhimuriuni. Other antigens abbreviated as in 

 Table 8-5. 



the galactomannans was reduced virtually to zero. Antibody to anti- 

 gen 12, on the other hand, seems not to cross- react with these galacto- 

 mannans, as is shown by the fact that removal of anti-12 by absorp- 

 tion with polysaccharide of 5". typhosa does not mtich afifect the pre- 

 cipitation of the serum with lucerne. 



The antibodies precipitable by dextran are seen to be, at least in 

 part, anti-12 antibodies, since removal of anti-12 by treatment with 

 PsTy considerably reduces the amount of precipitation with dextran. 

 This is shown even more clearly by the fact that removal of the 

 anti-12 from the anti-^'. typhosa serum eliminates, for all practical 

 purposes, precipitation with dextran. 



From these results Staub and her co-workers concluded that anti- 

 gen 12 contains glucose units linked as they are in dextran. They 

 felt they could not decide whether these glucoses were in the side 

 chain which terminates in rhamnose or part of a chain terminating 



