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Teichoic acids of group D streptococci with special reference to strains from pig meningitis (Streptococcus suis).
Metadata
Journaljournal of experimental medicine11.743Date
1977-Mar-01
Type
Research Support, U.S. Gov't, P.H.S.
Journal Article
Volume
1977-Mar-01 / 145 : 490-9
Author
Elliott SD 1, McCarty M , Lancefield RC
Affiliation

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Doi
PMIDMESH
Animals
Culture Media
Enterococcus faecalis
Enterococcus faecium
Humans
Hydrogen-Ion Concentration
Immune Sera
Meningitis
Phenols
Streptococcal Infections
Streptococcus bovis
Streptococcus suis
Swine
Teichoic Acids
Abstract
Immunoelectrophoresis revealed in phenol extracts from S. faecalis and S. faecium a mixture of free and lipid-bound teichoic acids, both reactive with Group D antisera. In phenol extracts from S. suis only lipid-bound teichoic acid, also reactive with Group D antiserum, was seen. This difference probably accounts for the low yield of Group D antigen from S. suis as compared with S. faecalis and S. faecium when heating at pH 2 is used for extraction. When phenol is used good yields are obtained from S. suis as well as from S. faecalis and S. faecium. Lipoteichoic acids from S. faecalis and S. faecium have a backbone structure the same as or similar to that of Group A streptococcal teichoic acid. Lipoteichoic acid from S. suis has a structure differing from that of S. faecalis and S. faecium, e.g., possibly in the attachment of its glucosyl substituents. Precipitation reactions between S. suis lipoteichoic acid and Group D antisera were specifically inhibited by glucose. Reactions between S. bovis phenol extracts and some Group D antisera were also specifically inhibited by glucose, but extracts from S. faecalis and S. faecium were not. This may indicate a monosaccharide glucosyl substituent in teichoic acid from S. suis and S. bovis instead of the di- or trisaccharide previously postulated as the glucosyl substituent in the teichoic acid of S. faecalis.
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11.7
J Exp Medjournal of experimental medicine
Metadata
LocationUnited States
FromROCKEFELLER UNIV PRESS

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