Use of sloppy molecular beacon probes for identification of mycobacterial species Journal Article
| Authors: | El-Hajj, H. H.; Marras, S. A. E.; Tyagi, S.; Shashkina, E.; Kamboj, M.; Kiehn, T. E.; Glickman, M. S.; Kramer, F. R.; Alland, D. |
| Article Title: | Use of sloppy molecular beacon probes for identification of mycobacterial species |
| Abstract: | We report here the use of novel "sloppy" molecular beacon probes in homogeneous PCR screening assays in which thermal denaturation of the resulting probe-amplicon hybrids provides a characteristic set of amplicon melting temperature (T<sub>m</sub>) values that identify which species is present in a sample. Sloppy molecular beacons possess relatively long probe sequences, enabling them to form hybrids with amplicons from many different species despite the presence of mismatched base pairs. By using four sloppy molecular beacons, each possessing a different probe sequence and each labeled with a differently colored fluorophore, four different T<sub>m</sub> values can be determined simultaneously. We tested this technique with 27 different species of mycobacteria and found that each species generates a unique, highly reproducible signature that is unaffected by the initial bacterial DNA concentration. Utilizing this general paradigm, screening assays can be designed for the identification of a wide range of species. Copyright © 2009. |
| Keywords: | genetics; nonhuman; methodology; sensitivity and specificity; polymerase chain reaction; classification; mass screening; bacteria (microorganisms); evaluation; nucleotide sequence; rna 16s; bacterial dna; bacterium culture; bacterium identification; molecular beacon; mycobacterium; species identification; genetic procedures; isolation and purification; microbiological examination; transition temperature; corynebacterineae; bacteriological techniques; molecular probe techniques |
| Journal Title: | Journal of Clinical Microbiology |
| Volume: | 47 |
| Issue: | 4 |
| ISSN: | 0095-1137 |
| Publisher: | American Society for Microbiology |
| Date Published: | 2009-04-01 |
| Start Page: | 1190 |
| End Page: | 1198 |
| Language: | English |
| DOI: | 10.1128/jcm.02043-08 |
| PUBMED: | 19171684 |
| PROVIDER: | scopus |
| PMCID: | PMC2668336 |
| DOI/URL: | |
| Notes: | --- - "Cited By (since 1996): 2" - "Export Date: 30 November 2010" - "CODEN: JCMID" - "Source: Scopus" |
Altmetric
Citation Impact
BMJ Impact Analytics
Related MSK Work