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Detection of the Bacillus anthracis gyrA gene by using a minor groove binder probe.

ABSTRACT: Identification of chromosomal markers for rapid detection of Bacillus anthracis is difficult because significant chromosomal homology exists among B. anthracis, Bacillus cereus, and Bacillus thuringiensis. We evaluated the bacterial gyrA gene as a potential chromosomal marker for B. anthracis. A real-time PCR assay was developed for the detection of B. anthracis. After analysis of the unique nucleotide sequence of the B. anthracis gyrA gene, a fluorescent 3' minor groove binding probe was tested with 171 organisms from 29 genera of bacteria, including 102 Bacillus strains. The assay was found to be specific for all 43 strains of B. anthracis tested. In addition, a test panel of 105 samples was analyzed to evaluate the potential diagnostic capability of the assay. The assay showed 100% specificity, demonstrating the usefulness of the gyrA gene as a specific chromosomal marker for B. anthracis.

SUBMITTER: Hurtle W 

PROVIDER: S-EPMC321681 | biostudies-literature | 2004 Jan

REPOSITORIES: biostudies-literature

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Detection of the Bacillus anthracis gyrA gene by using a minor groove binder probe.

Hurtle William W   Bode Elizabeth E   Kulesh David A DA   Kaplan Rebecca Susan RS   Garrison Jeff J   Bridge Deanna D   House Michelle M   Frye Melissa S MS   Loveless Bonnie B   Norwood David D  

Journal of clinical microbiology 20040101 1

Identification of chromosomal markers for rapid detection of Bacillus anthracis is difficult because significant chromosomal homology exists among B. anthracis, Bacillus cereus, and Bacillus thuringiensis. We evaluated the bacterial gyrA gene as a potential chromosomal marker for B. anthracis. A real-time PCR assay was developed for the detection of B. anthracis. After analysis of the unique nucleotide sequence of the B. anthracis gyrA gene, a fluorescent 3' minor groove binding probe was tested  ...[more]

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