THE CAPSULAR POLYSACCHARIDE OF A MUCOID VARIANT OF E. COLI K12
Open Access
- 1 August 1964
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 52 (2), 265-271
- https://doi.org/10.1073/pnas.52.2.265
Abstract
The encapsulating polysaccharide, (colanic-acid) phage-resistant mucoid variant of Escherichia coli K12W (strain-1485) is the same as that produced by the colicine K -producing bacillus, E. coli K235. Colanic-acid is composed of galactose, fucose, glucose and glucuronic -acid in the molar ratio 2: 2: 1: 1, respectively. It is antigenic in experimental animals and confers upon the bacterial cell certain of its serological properties. Colanic-acid probably constitutes the M antigen of mucoid variants of E. coli and salmonellae.Keywords
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