Isolation, Identification, and Synthesis of 2,3-Diamino-2,3-Dideoxyglucuronic Acid: a Component ofPropionibacterium acnesCell Wall Polysaccharide

A previously undescribed component of the cell wall polysaccharide of Propionibacterium acnes, 2,3-diamino-2,3-dideoxyglucuronic acid, has been identified and synthesized. The component occurs to the extent of about 3 to 5% in the wall polysaccharides of P. acnes types I and II and in Propionibacterium avidum types I and II; it also appears to be present, but in much smaller amounts, in the cell wall of Propionibacterium granulosum.