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  • Title: Identification Leptospira santarosai serovar shermani specific sequences by suppression subtractive hybridization.
    Author: Hsieh WJ, Pan MJ.
    Journal: FEMS Microbiol Lett; 2004 Jun 01; 235(1):117-24. PubMed ID: 15158270.
    Abstract:
    In Taiwan, leptospirosis is caused mainly by Leptospira santarosai serovar shermani. Suppression subtractive hybridization was employed to isolate DNA fragments present in pathogenic L. santarosai serovar shermani but absent in non-pathogenic L. biflexa serovar patoc. Analysis of 23 subtracted DNA clones revealed 25 gene fragments by BLASTX program. Eight clones showed similarity to transposase genes and three clones displayed homology with either translation or metabolism related genes. Four clones were similar to outer membrane protein, penicillin-binding protein, CreD-like protein and the protein of two-component signal transduction system, respectively. One clone had TPR repeat domain and five clones had significant similarity with hypothetical proteins of unknown functions. The remaining four clones exhibited no homology with any known genes. These results indicate that subtractive hybridization can successfully identify genes that are absent from the non-pathogenic Leptospira and provide a starting point for clarifying the differential genes expression between pathogenic and non-pathogenic Leptospira species.
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