Mass spectrometry provides accurate characterization of two genetic marker types in Bacillus anthracis

Matthew N. Van Ert, Steven A. Hofstadler, Yun Jiang, Joseph D. Busch, David M Wagner, Jared J. Drader, David J. Ecker, James C. Hannis, Lynn Y. Huynh, James M. Schupp, Tatum S. Simonson, Paul S Keim

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Epidemiological and forensic analyses of bioterrorism events involving Bacillus anthracis could be improved if both variable number tandem repeats (VNTRs) and single nucleotide polymorphisms (SNPs) could be combined on a single analysis platform. Here we present the use of electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI-FTICR-MS) to characterize 24 alleles from 6 VNTR loci and 11 alleles from 7 SNP loci in B. anthracis. The results obtained with ESI-FTICR-MS were consistent with independent results obtained from traditional approaches using electrophoretic detection of fluorescent products. However, ESI-FTICR-MS improves on the traditional approaches because it does not require fluorescent labeling of PCR products, minimizes post-PCR processing, obviates electrophoresis, and provides unambiguous base composition of both SNP and VNTR PCR products. In addition, ESI-FTICR-MS allows both marker types to be examined simultaneously and at a rate of approximately 1 sample per min. This technology represents a significant advance in our ability to rapidly characterize B. anthracis isolates using VNTR and SNP loci.

Original languageEnglish (US)
Pages (from-to)642-651
Number of pages10
JournalBioTechniques
Volume37
Issue number4
StatePublished - Oct 2004

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Cyclotrons
Bacillus anthracis
Cyclotron resonance
Electrospray ionization
Minisatellite Repeats
Bacilli
Fourier Analysis
Polymorphism
Genetic Markers
Single Nucleotide Polymorphism
Mass spectrometry
Mass Spectrometry
Fourier transforms
Nucleotides
Ions
Polymerase Chain Reaction
Bioterrorism
Alleles
Product Labeling
Base Composition

ASJC Scopus subject areas

  • Clinical Biochemistry
  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Van Ert, M. N., Hofstadler, S. A., Jiang, Y., Busch, J. D., Wagner, D. M., Drader, J. J., ... Keim, P. S. (2004). Mass spectrometry provides accurate characterization of two genetic marker types in Bacillus anthracis. BioTechniques, 37(4), 642-651.

Mass spectrometry provides accurate characterization of two genetic marker types in Bacillus anthracis. / Van Ert, Matthew N.; Hofstadler, Steven A.; Jiang, Yun; Busch, Joseph D.; Wagner, David M; Drader, Jared J.; Ecker, David J.; Hannis, James C.; Huynh, Lynn Y.; Schupp, James M.; Simonson, Tatum S.; Keim, Paul S.

In: BioTechniques, Vol. 37, No. 4, 10.2004, p. 642-651.

Research output: Contribution to journalArticle

Van Ert, MN, Hofstadler, SA, Jiang, Y, Busch, JD, Wagner, DM, Drader, JJ, Ecker, DJ, Hannis, JC, Huynh, LY, Schupp, JM, Simonson, TS & Keim, PS 2004, 'Mass spectrometry provides accurate characterization of two genetic marker types in Bacillus anthracis', BioTechniques, vol. 37, no. 4, pp. 642-651.
Van Ert MN, Hofstadler SA, Jiang Y, Busch JD, Wagner DM, Drader JJ et al. Mass spectrometry provides accurate characterization of two genetic marker types in Bacillus anthracis. BioTechniques. 2004 Oct;37(4):642-651.
Van Ert, Matthew N. ; Hofstadler, Steven A. ; Jiang, Yun ; Busch, Joseph D. ; Wagner, David M ; Drader, Jared J. ; Ecker, David J. ; Hannis, James C. ; Huynh, Lynn Y. ; Schupp, James M. ; Simonson, Tatum S. ; Keim, Paul S. / Mass spectrometry provides accurate characterization of two genetic marker types in Bacillus anthracis. In: BioTechniques. 2004 ; Vol. 37, No. 4. pp. 642-651.
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