Tentacle Probes™: Differentiation of Difficult Single-Nucleotide Polymorphisms and Deletions by Presence or Absence of a Signal in Real-Time PCR
Abstract
Abstract Background: False-positive results are a common problem in real-time PCR identification of DNA sequences that differ from near neighbors by a single-nucleotide polymorphism (SNP) or deletion. Because of a lack of sufficient probe specificity, post-PCR analysis, such as a melting curve, is often required for mutation differentiation. Methods: Tentacle Probes™, cooperative reagents with both a capture and a detection probe based on specific cell-targeting principles, were developed as a replacement for 2 chromosomal TaqMan–minor groove binder (MGB) assays previously developed for Yersinia pestis and Bacillus anthracis detection. We compared TaqMan-MGB probes to Tentacle Probes for SNP and deletion detection based on the presence or absence of a growth curve. Results: With the TaqMan-MGB Y. pestis yp48 assays, false-positive results for Yersinia pseudotuberculosis occurred at every concentration tested, and with the TaqMan-MGB B. anthracis gyrA assays, false-positive results occurred in 21 of 29 boil preps of environmental samples of near neighbors. With Tentacle Probes no false-positive results occurred. Conclusions: The high specificity exhibited by Tentacle Probes may eliminate melting curve analysis for SNP and deletion mutation detection, allowing the diagnostic use of previously difficult targets.
- Authors:
-
- Harrington Department of Bioengineering, Arizona State University, Tempe, AZ, Arcxis Biotechnologies, Pleasanton, CA
- United States Army Medical Research Institute of Infectious Diseases, Frederick, MD
- Harrington Department of Bioengineering, Arizona State University, Tempe, AZ
- Arcxis Biotechnologies, Pleasanton, CA
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1581655
- Grant/Contract Number:
- AC05-00OR22750
- Resource Type:
- Published Article
- Journal Name:
- Clinical Chemistry
- Additional Journal Information:
- Journal Name: Clinical Chemistry Journal Volume: 53 Journal Issue: 12; Journal ID: ISSN 0009-9147
- Publisher:
- Oxford University Press
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Satterfield, Brent C., Kulesh, David A., Norwood, David A., Wasieloski, Jr, Leonard P., Caplan, Michael R., and West, Jay AA. Tentacle Probes™: Differentiation of Difficult Single-Nucleotide Polymorphisms and Deletions by Presence or Absence of a Signal in Real-Time PCR. United States: N. p., 2007.
Web. doi:10.1373/clinchem.2007.091488.
Satterfield, Brent C., Kulesh, David A., Norwood, David A., Wasieloski, Jr, Leonard P., Caplan, Michael R., & West, Jay AA. Tentacle Probes™: Differentiation of Difficult Single-Nucleotide Polymorphisms and Deletions by Presence or Absence of a Signal in Real-Time PCR. United States. https://doi.org/10.1373/clinchem.2007.091488
Satterfield, Brent C., Kulesh, David A., Norwood, David A., Wasieloski, Jr, Leonard P., Caplan, Michael R., and West, Jay AA. Sat .
"Tentacle Probes™: Differentiation of Difficult Single-Nucleotide Polymorphisms and Deletions by Presence or Absence of a Signal in Real-Time PCR". United States. https://doi.org/10.1373/clinchem.2007.091488.
@article{osti_1581655,
title = {Tentacle Probes™: Differentiation of Difficult Single-Nucleotide Polymorphisms and Deletions by Presence or Absence of a Signal in Real-Time PCR},
author = {Satterfield, Brent C. and Kulesh, David A. and Norwood, David A. and Wasieloski, Jr, Leonard P. and Caplan, Michael R. and West, Jay AA},
abstractNote = {Abstract Background: False-positive results are a common problem in real-time PCR identification of DNA sequences that differ from near neighbors by a single-nucleotide polymorphism (SNP) or deletion. Because of a lack of sufficient probe specificity, post-PCR analysis, such as a melting curve, is often required for mutation differentiation. Methods: Tentacle Probes™, cooperative reagents with both a capture and a detection probe based on specific cell-targeting principles, were developed as a replacement for 2 chromosomal TaqMan–minor groove binder (MGB) assays previously developed for Yersinia pestis and Bacillus anthracis detection. We compared TaqMan-MGB probes to Tentacle Probes for SNP and deletion detection based on the presence or absence of a growth curve. Results: With the TaqMan-MGB Y. pestis yp48 assays, false-positive results for Yersinia pseudotuberculosis occurred at every concentration tested, and with the TaqMan-MGB B. anthracis gyrA assays, false-positive results occurred in 21 of 29 boil preps of environmental samples of near neighbors. With Tentacle Probes no false-positive results occurred. Conclusions: The high specificity exhibited by Tentacle Probes may eliminate melting curve analysis for SNP and deletion mutation detection, allowing the diagnostic use of previously difficult targets.},
doi = {10.1373/clinchem.2007.091488},
journal = {Clinical Chemistry},
number = 12,
volume = 53,
place = {United States},
year = {Sat Dec 01 00:00:00 EST 2007},
month = {Sat Dec 01 00:00:00 EST 2007}
}
https://doi.org/10.1373/clinchem.2007.091488
Web of Science
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