Journal article Open Access

RT-PCR/electrospray ionization mass spectrometry approach in detection and characterization of influenza viruses

Deyde, Varough M.; Sampath, Rangarajan; Gubareva, Larisa V.

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        <foaf:name>Deyde, Varough M.</foaf:name>
        <foaf:givenName>Varough M.</foaf:givenName>
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        <foaf:name>Sampath, Rangarajan</foaf:name>
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        <foaf:name>Gubareva, Larisa V.</foaf:name>
        <foaf:givenName>Larisa V.</foaf:givenName>
    <dct:title>RT-PCR/electrospray ionization mass spectrometry approach in detection and characterization of influenza viruses</dct:title>
    <dct:issued rdf:datatype="">2011</dct:issued>
    <dct:issued rdf:datatype="">2011-01-01</dct:issued>
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    <dct:description>Reverse-transcription PCR (RT-PCR) coupled with electrospray ionization mass spectrometry (ESI-MS) is a high-throughput nucleic acid-based technology that relies on the accurate measurement of the molecular weight of PCR amplicons that can be used to deduce the base counts (number of As, Gs, Cs and Ts) of DNA. These amplicons represent highly variable regions with information-rich sequences, which are flanked by broad-range primers designed based on highly conserved loci. This technology was first introduced in 2005 for microbial identification and subtyping, and was later applied to influenza virus detection and identification. The influenza RT-PCR/ESI-MS assay allows analysis of approximately 300 samples per 24 h, and aids in the characterization of influenza viruses based on their 'core' gene signatures. Notably, this assay was used to identify one of the first cases of the 2009 H1N1 pandemic viruses. One of the main advantages of the RT-PCR/ESI-MS technology is its universality and adaptability for pathogen characterization. Efforts are being made to customize the currently used influenza surveillance assay for use in the diagnosis of the H1N1 pandemic virus. In this article, we provide a summary of known applications of the RT-PCR/ESI-MS assay in the field of influenza.</dct:description>
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