Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1988 Feb 15;173(1):53-64.
doi: 10.1016/s0008-6215(00)90802-4.

Structural studies of the Escherichia coli K93 and K53 capsular polysaccharides

A Bax  1 , M F Summers, W Egan, N Guirgis, R Schneerson, J B Robbins, F Orskov, I Orskov, W F Vann
Affiliations

Structural studies of the Escherichia coli K93 and K53 capsular polysaccharides

A Bax et al. Carbohydr Res. .

Abstract

The structures of the Escherichia coli K93 and K53 capsular polysaccharides have been investigated by chemical and spectroscopic methods. The repeating unit of both polymers was found to be----3)-beta-D-Galf-(1----f)-beta-D-GlcAp-(1. The O-5 and O-6 atoms of D-galactose are acetylated in the repeating unit of the K93 polymer, but only O-2 is acetylated in the K53 polymer. The K93 polysaccharide is cross-reactive with the Neisseria meningitidis Group A capsular polysaccharide (of known structure). The K53 polysaccharide, although structurally similar to that from K93 organisms, does not cross-react with the Group A polymer.

PubMed Disclaimer

Substances

LinkOut - more resources