The structure of the capsular polysaccharide from Cryptococcus neoformans serotype D

The capsular polysaccharide from Cryptococcus neoformans serotype D has been studied by employing the usual methods for the elucidation of chemical structure. The results are consistent with the occurrence of a polysaccharide having both D-glucosyl-uronic acid and D-xylosyl groups present as nonreducing end-groups attached to O-2 of D-mannosyl residues which are linked alpha-D-(1 leads to 3) in a linear backbone.