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  • Title: Allelic variation in srtAs of Streptococcus suis strains.
    Author: Osaki M, Takamatsu D, Shimoji Y, Sekizaki T.
    Journal: FEMS Microbiol Lett; 2003 Feb 28; 219(2):195-201. PubMed ID: 12620620.
    Abstract:
    Streptococcus suis NCTC10234 possesses five srtA homologs: srtA encodes sortase, which anchors surface proteins with an LPXTG motif to the cell wall, while the functions of the other four homologs (the srtBCD cluster and srtE) remain unknown. The genetic organization of the srtA region was found to be conserved in the 59 S. suis strains examined in this study. Although the srtAs in three of these strains showed strong sequence divergence, their functions were verified to be overlapping by genetic complementation, indicating the functional conservation of srtAs during the evolution of these strains. These results indicate the importance of an srtA-mediated cell wall sorting system for displaying proteins on the surface of S. suis.
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