Allelic variation in Streptococcus pneumoniae autolysin (N-acetyl muramoyl-L-alanine amidase)
- PMID: 9284174
- PMCID: PMC175561
- DOI: 10.1128/iai.65.9.3936-3938.1997
Allelic variation in Streptococcus pneumoniae autolysin (N-acetyl muramoyl-L-alanine amidase)
Abstract
The lytA gene encoding the autolysin of Streptococcus pneumoniae may be a virulence determinant. Single-strand conformational polymorphism analysis demonstrated heterogenicity throughout the gene in clinical isolates and strains from the clonal serotypes 7 and 14. Sequence analysis of part of the choline-binding domain showed that in two isolates four amino acid substitutions occurred.
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