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. 1974 Feb;9(2):318–322. doi: 10.1128/iai.9.2.318-322.1974

Capsular Polysaccharide of Clostridium perfringens Hobbs 10

Linda Lee 1, Robert Cherniak 1
PMCID: PMC414803  PMID: 4361293

Abstract

A capsular polysaccharide was isolated from a strain of Clostridium perfringens Hobbs 10 type A by cold-water extraction of whole, heavily encapsulated cells. The water-soluble polymer was isolated by alcohol precipitation and purified by treatment with chloroform-butanol, cetytrimethylammonium bromide, and column gel permeation chromatography by using Bio-Gel A-5m agarose. The formation of a single precipitin line, when the isolated polysaccharide was reacted with its homologous antisera by double diffusion in gel, was considered a criterion of immunochemical purity. The purified polymer appeared as a single peak when eluted from diethylaminoethyl-Sephadex with a linear gradient of NaCl. The polysaccharide was composed of glucose, galactose, galactosamine, and iduronic acid in a molar ratio of 4.1:5.1.7:1, respectively. These constituents accounted for 83% of the dry weight. The polysaccharide appeared to have a molecular weight of 40,000 and exhibited aggregation up to 120,000. A trace of peptide material could not be removed during purification.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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