Structure of the O‐chain of the phenol‐phase soluble cellular lipopolysaccharide of Yersinia enterocolitica serotype O:9

Abstract

The phenol‐phase soluble cellular lipopolysaccharide isolated by the phenol/water extraction method from Yersinia enterocolitica serotpye O:9 cells was shown by hydrolytic, periodate oxidation, methylation and nuclear magnetic resonance studies to be an S‐type lipopolysaccharide with a linear O‐antigenic polysaccharide of 1,2‐linked 4,6‐dideoxy‐4‐formamido‐α‐d‐mannopyranosyl units. The serological cross‐reactivity between Y. enterocolitica serotype O:9 and the lipopolysaccharides of Vibrio cholerae and Brucella species can now be related to the presence of N‐acylated 4‐amino‐4, 6‐dideoxy‐α‐d‐mannopyranosyl residues in their respective O‐antigenic chains. Copyright © 1984, Wiley Blackwell. All rights reserved