The structure of the core part of Proteus vulgaris OX2 lipopolysaccharide

The identity of a novel structural component, an open-chain acetalic linkage, in the core part of the lipopolysaccharide (LPS) from Proteus vulgaris serotype OX2 has been determined by extensive NMR spectroscopic analysis of fragments isolated after mild acid hydrolysis of the intact LPS. The open-chain N-acetylgalactosamine fragment is subst