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In Lactococcus lactis subsp. cremoris SK110 protein, instead of lipoteichoic acid, reacts with the group-N-specific
1Biotechnology Centre, University of Amsterdam, The Netherlands.
FEMS Microbiology Immunology
|June 1, 1991
Abstract:
The reaction between cell-surface components, isolated from two Lactococcus lactis subsp. cremoris strains, with their Group-specific antiserum were studied. No reaction between purified lipoteichoic acid and the antiserum was observed. Both strains, however, did belong to the lactococci (Group-N streptococci), as was demonstrated by the positive reaction between the antiserum and an acid- (Lancefield) or alkaline-extract. Experiments with proteolytic enzymes demonstrated the involvement of protein in the antigenic material in the latter reaction.